dr inż. Andrzej Balcerzak

Zakład Teorii Ośrodków Ciągłych i Nanostruktur (ZTOCiN)
Zespół Badawczy "Akustoelektronika" (ZeBAk)
stanowisko: specjalista
telefon: (+48) 22 826 12 81 wew.: 223
pokój: 530
e-mail: abalcerz
strona www: http://bluebox.ippt.pan.pl/~abalcerz/

Doktorat
1997Badania kompleksów inkluzyjnych jonów organicznych z alfa i beta cyklodekstryną metodami spektroskopii ultradźwiękowej 
promotor -- doc. dr hab. Adam Juszkiewicz, IPPT PAN
530 
Ostatnie publikacje
1.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A., Ptasznik S., Evaluation of High-Pressure Thermophysical Parameters of the Diacylglycerol (DAG) Oil Using Ultrasonic Waves, Food and Bioprocess Technology, ISSN: 1935-5130, DOI: 10.1007/s11947-016-1827-6, Vol.10, No.2, pp.358-369, 2017

Streszczenie:

Modeling of high-pressure technological processes in the food industry requires knowledge of thermophysical parameters of processed foodstuffs in a broad range of pressures and temperatures. However, the high-pressure thermophysical parameters of foodstuffs are very rarely published in the literature. Therefore, further research is necessary to achieve a deeper insight into the biophysical and thermophysical phenomena under pressure to provide better control of technological processes and optimize the effects of pressure. The essential goal of this work is to evaluate the impact of high pressure and temperature on the thermophysical parameters of liquid foodstuffs on the example of diacylglycerol (DAG) oil (which attracted recently a considerable attention from research and industrial communities due to its remarkable benefits for health), using ultrasonic wave velocity and density measurements. Isotherms of adiabatic and isothermal compressibility, isobaric thermal expansion coefficient, internal pressure, and thermal pressure coefficient versus pressure were evaluated, based on the measurement of the compressional ultrasonic wave velocity and density of DAG oil at high pressures (up to 500 MPa) and at various temperatures. The adiabatic compressibility is affected mostly by the changes of pressure, i.e., it grows about four times when the pressure increases from the atmospheric pressure (0.1 MPa) to 400 MPa at a temperature of 50 °C. By contrast, the internal pressure is a pronounced function of the temperature, i.e., it increases six times when the temperature rises from 20 to 50 °C at a pressure of a 200 MPa. To perform numerical calculations, it was convenient to introduce a Tammann–Tait type equation of state to approximate the measured density isotherms of the investigated DAG oil. The results obtained in this paper can be applied in modeling and optimization of high-pressure technological processes and processing of foodstuffs. Evaluation of high-pressure isotherms of the considered thermophysical parameters of the DAG oil is an original authors’ contribution to the state-of-the-art.

Słowa kluczowe:

High-pressure food processing, Diacylglycerols, Thermophysical parameters, Isothermal compressibility, Isobaric thermal expansion coefficient, Ultrasonic methods

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.-Warsaw University of Technology (PL)
Ptasznik S.-Air Force Institute of Technology (PL)
35p.
2.Kiełczyński P., Ptasznik S., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J., Thermophysical properties of rapeseed oil methyl esters (RME) at high pressures and various temperatures evaluated by ultrasonic methods, Biomass and Bioenergy, ISSN: 0961-9534, DOI: 10.1016/j.biombioe.2017.09.015, Vol.107, pp.113-121, 2017

Streszczenie:

Investigation of the high-pressure thermophysical properties of biofuels, e.g., bulk modulus, Surface tension, and viscosity is of paramount importance in fuel injection systems in diesel engines. Another crucial and dangerous phenomenon that may occur in biofuels at high pressures is phase transition (solidification), which can drastically increase the viscosity of the biofuel. This effect may hamper proper operation of the engine, especially under cold-start conditions. Unfortunately, the availability of highpressure thermophysical properties of biofuels is still limited. The goal of this paper is to investigate the impact of high pressures on thermophysical properties of biofuels on the example of rapeseed fatty acid methyl esters (RME) in a wide range of pressures (0:1 to 250 MPa) and temperatures (5 to 20 _C). To this end we employed innovative ultrasonic techniques, i.e., the Bleustein-Gulyaev surface acoustic waves for measuring RME viscosity, and ultrasonic bulk compressional waves for measuring sound velocity in RME and consequently evaluating RME thermophysical parameters, e.g., bulk modulus and surface tension. The viscosity of the measured RME displayed an abrupt increase at pressures: 260 MPa (t Ľ 20 _C), 230 MPa (t Ľ 15 _C), 190 MPa (t Ľ 10 _C), and 130 MPa (t Ľ 5 _C). Evidently it was a signature of the phase transition (solidification) occurring in the RME. The discovered high viscosity high-pressure phase in RME can be very detrimental for operation of modern common rail Diesel engines. Therefore, the results of research presented in this paper should be interesting for engineers and designers working with modern common rail Diesel engines using biofuels.

Słowa kluczowe:

Biofuels; Methyl esters; Phase transitions; Viscosity; Speed of sound; Ultrasonic methods; High pressure

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Ptasznik S.-Air Force Institute of Technology (PL)
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
35p.
3.Balcerzak A., Comparison of High-Pressure Behavior of Physicochemical Properties of the Di- and Triacylglycerols Established by Ultrasonic Methods, JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, ISSN: 0003-021X, DOI: 10.1007/s11746-017-3030-y, Vol.94, No.10, pp.1261-1268, 2017

Streszczenie:

Two samples of triacylglycerols i.e., olive oil and triolein, and one sample of diacylglycerol were investigated.
In the course of compression, the density of the samples was determined by measurements of the change of piston position in a pressure chamber and volume correction due to chamber expansion under pressure. The speed of sound was evaluated from the time of flight of an ultrasonic impulse between emitting and receiving transducers placed in the high pressure chamber. The adiabatic compressibility, the intermolecular free length, the molar volume, the van der Waals’ constant b and the surface tension were evaluated from the density, the speed of sound and the average molecular mass. All tested liquids undergo a high-pressure phase transition. Discontinuities in the measured isotherms of the physicochemical parameters of the investigated oils indicate the presence of high-pressure phase transitions. Moreover the time dependent change of pressure at constant volume during the phase transition was measured. The fundamental difference in the molecular structure of these acylglycerols influences their behavior significantly under high pressure.

Słowa kluczowe:

Acylglycerols; Physicochemical parameters; Ultrasonic measurements

Afiliacje autorów:

Balcerzak A.-IPPT PAN
25p.
4.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Propagation of ultrasonic Love waves in nonhomogeneous elastic functionally graded materials, Ultrasonics, ISSN: 0041-624X, DOI: 10.1016/j.ultras.2015.10.001, Vol.65, pp.220-227, 2016

Streszczenie:

This paper presents a theoretical study of the propagation behavior of ultrasonic Love waves in nonhomogeneous functionally graded elastic materials, which is a vital problem in the mechanics of solids. The elastic properties (shear modulus) of a semi-infinite elastic half-space vary monotonically with the depth (distance from the surface of the material). The Direct Sturm–Liouville Problem that describes the propagation of Love waves in nonhomogeneous elastic functionally graded materials is formulated and solved by using two methods: i.e., (1) Finite Difference Method, and (2) Haskell-Thompson Transfer Matrix Method.

The dispersion curves of phase and group velocity of surface Love waves in inhomogeneous elastic graded materials are evaluated. The integral formula for the group velocity of Love waves in nonhomogeneous elastic graded materials has been established. The effect of elastic non-homogeneities on the dispersion curves of Love waves is discussed. Two Love wave waveguide structures are analyzed: (1) a nonhomogeneous elastic surface layer deposited on a homogeneous elastic substrate, and (2) a semi-infinite nonhomogeneous elastic half-space. Obtained in this work, the phase and group velocity dispersion curves of Love waves propagating in the considered nonhomogeneous elastic waveguides have not previously been reported in the scientific literature. The results of this paper may give a deeper insight into the nature of Love waves propagation in elastic nonhomogeneous functionally graded materials, and can provide theoretical guidance for the design and optimization of Love wave based devices.

Słowa kluczowe:

Ultrasonic Love waves, Functionally graded materials, Profiles of elastic constants, Direct Sturm–Liouville Problem, Group velocity

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
30p.
5.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Inverse Method for Determining Profiles of Elastic Parameters in the Functionally Graded Materials using Love Waves, ACTA ACUSTICA UNITED WITH ACUSTICA, ISSN: 1610-1928, DOI: 10.3813/AAA.918961, Vol.102, pp.428-435, 2016

Streszczenie:

This paper presents the use of SH (Shear Horizontal) surface Love waves to determine the distributions of elastic parameters in nonhomogeneous Functionally Graded Materials. The advantage of Love waves applied to investigate the elastic properties of materials is that the Love wave energy (in contrast to the other types of waves, e.g., plate Lamb waves) is concentrated in the vicinity of the surface layer. The penetration depth of the SH surface Love waves depends on the frequency. Therefore, Love waves are particularly suitable for investigating the profiles of the mechanical properties in nonhomogeneous Graded Materials. Direct Problem (Direct Sturm-Liouville Problem) that describes the propagation of Love waves in nonhomogeneous graded materials has been formulated and solved numerically by applying the Transfer Matrix Method. The Inverse Procedure (Inverse Sturm-Liouville Problem) for determining the distribution of elastic properties versus depth in the nonhomogeneous materials has been developed. Love wave dispersion curves in nonhomogeneous graded materials were evaluated numerically (synthetic data). Using the evaluated dispersion curves of Love waves and a developed Inverse Procedure the distributions of elastic shear coefficient as a function of depth (distance from the surface of the material into the bulk) in a heterogeneous surface layer deposited on a homogeneous substrate have been evaluated. Power type profiles (i.e., root square, linear and quadratic) of the shear elastic coefficient in the surface layer were considered. The results of this study can be useful in the investigation of elastic properties of Graded Materials in electronics as well as in geophysics and seismology.

Słowa kluczowe:

Love waves, Inverse Methods, Functionally Graded Materials, Elastic parameters, Sturm-Liouville Problem

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
25p.
6.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J., Siegoczyński R.M., Ultrasonic Evaluation of Thermodynamic Parameters of Liquids Under High Pressure, IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, ISSN: 0885-3010, DOI: 10.1109/TUFFC.2015.007053, Vol.62, No.6, pp.1122-1131, 2015

Streszczenie:

In many technological processes (e.g., in the chemical, petrochemical, food, and plastics industries), liquids are subjected to high pressures and temperatures. Therefore, knowledge of their thermodynamic properties is essential for understanding, design, and control of the process technology. Direct evaluation of the thermodynamic parameters of liquids under high pressure, using conventional methods, is very difficult. Therefore, the application of these methods in industrial conditions, particularly in on-line control of the technological parameters of liquids, is practically impossible. Ultrasonic methods (e.g., sound speed measurements) are very suitable for this purpose because of their simplicity and accuracy. The sound velocity is closely related to numerous thermodynamic properties of liquids. The objective of this paper is to address the influence of temperature and pressure on the thermodynamic parameters of liquids, using the example of diacylglycerol (DAG) oil, employing ultrasonic methods. In this paper, we present ultrasonic velocity and density measurements (performed by the authors) in DAG oil over a range of pressures and temperatures. On the basis of experimental results (the sound velocity and liquid density versus pressure and temperature) a series of DAG oil thermodynamic parameters such as specific heat ratio, intermolecular free path length, Van der Waals constant b, surface tension, and effective Debye temperature were evaluated as functions of pressure and temperature.

Słowa kluczowe:

Thermodynamical properties of liquid, High pressure food processing, ultrasonic methods, sound velocity, surface tension

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
Siegoczyński R.M.-other affiliation
30p.
7.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Group and Phase Velocity of Love Waves Propagating in Elastic Functionally Graded Materials, ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, DOI: 10.1515/aoa-2015-0030, Vol.40, No.2, pp.273-281, 2015

Streszczenie:

This paper presents a theoretical study of the propagation behaviour of surface Love waves in nonhomogeneous functionally graded elastic materials, which is a vital problem in acoustics. The elastic properties (shear modulus) of a semi-infinite elastic half-space vary monotonically with the depth (distance from the surface of the material). Two Love wave waveguide structures are analyzed: 1) a nonhomogeneous elastic surface layer deposited on a homogeneous elastic substrate, and 2) a semi-infinite nonhomogeneous elastic half-space. The Direct Sturm-Liouville Problem that describes the propagation of Love waves in nonhomogeneous elastic functionally graded materials is formulated and solved 1) analytically in the case of the step profile, exponential profile and 1cosh2 type profile, and 2) numerically in the case of the power type profiles (i.e. linear and quadratic), by using two numerical methods: i.e. a) Finite Difference Method, and b) Haskell-Thompson Transfer Matrix Method.

The dispersion curves of phase and group velocity of surface Love waves in inhomogeneous elastic graded materials are evaluated. The integral formula for the group velocity of Love waves in nonhomogeneous elastic graded materials has been established. The results obtained in this paper can give a deeper insight into the nature of Love waves propagation in elastic nonhomogeneous functionally graded materials.

Słowa kluczowe:

surface Love waves, group velocity, phase velocity, functionally graded materials, profiles of elastic constants, direct Sturm-Liouville problem

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
15p.
8.Trawiński Z., Wójcik J., Nowicki A., Olszewski R., Balcerzak A., Frankowska E., Zegadło A., Rydzyński P., Strain examinations of the left ventricle phantom by ultrasound and multislices computed tomography imaging, Biocybernetics and Biomedical Engineering, ISSN: 0208-5216, DOI: 10.1016/j.bbe.2015.03.001, Vol.35, pp.255-263, 2015

Streszczenie:

The main aim of this study was to verify the suitability of the hydrogel sonographic model of the left ventricle (LV) in the computed tomography (CT) environment and echocardiography and compare the radial strain calculations obtained by two different techniques: the speckle tracking ultrasonography and the multislices computed tomography (MSCT). The measurement setup consists of the LV model immersed in a cylindrical tank filled with water, hydraulic pump, the ultrasound scanner, hydraulic pump controller, pressure measurement system of water inside the LV model, and iMac workstation. The phantom was scanned using a 3.5 MHz Artida Toshiba ultrasound scanner unit at two angle positions: 0° and 25°. In this work a new method of assessment of RF speckles’ tracking. LV phantom was also examined using the CT 750 HD 64-slice MSCT machine (GE Healthcare). The results showed that the radial strain (RS) was independent on the insonifying angle or the pump rate. The results showed a very good agreement, at the level of 0.9%, in the radial strain assessment between the ultrasound M-mode technique and multislice CT examination. The study indicates the usefulness of the ultrasonographic LV model in the CT technique. The presented ultrasonographic LV phantom may be used to analyze left ventricle wall strains in physiological as well as pathological conditions. CT, ultrasound M-mode techniques, and author's speckle tracking algorithm, can be used as reference methods in conducting comparative studies using ultrasound scanners of various manufacturers.

Słowa kluczowe:

Computed tomography, Echocardiography, Left ventricle, Speckles tracking, Strain, Ultrasound phantoms

Afiliacje autorów:

Trawiński Z.-IPPT PAN
Wójcik J.-IPPT PAN
Nowicki A.-IPPT PAN
Olszewski R.-other affiliation
Balcerzak A.-IPPT PAN
Frankowska E.-Military Medical Institute (PL)
Zegadło A.-other affiliation
Rydzyński P.-other affiliation
15p.
9.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J., Siegoczyński R.M., Ptasznik S., Application of ultrasonic wave celerity measurement for evaluation of physicochemical properties of olive oil at high pressure and various temperatures, LWT-FOOD SCIENCE AND TECHNOLOGY, ISSN: 0023-6438, DOI: 10.1016/j.lwt.2014.01.027, Vol.57, pp.253-259, 2014

Streszczenie:

High-pressure processing is a powerful technology for food preservation. The knowledge of foods properties in the high-pressure range is important to develop and optimize such processes by means of mathematical modeling and simulation. Ultrasonic methods are rapid, non-invasive and can be used to characterize foods like edible oils (e.g., composition, purity, and quality assessment). In this paper, they were applied for the investigation of physicochemical properties of olive oil at high pressure at different temperatures. The sound wave velocity was measured by the pulse-transmission method and the corresponding oil density was additionally determined from the monitoring of sample volume change. Measurements were conducted in the pressure range up to 600 MPa, for temperatures from 20 to 50°C. Intermolecular free length, isothermal and adiabatic compressibility versus pressure were calculated using measured sound speed and density isotherms. Discontinuities in the measured isotherms of sound speed and density versus pressure indicate the presence of liquid-to-solid phase transitions. The kinetics of the liquid-to-solid phase transition was also investigated. The transformation times of olive oil augment with increasing temperature. This study can be broadened to other liquid foodstuffs to investigate the influence of temperature on their physicochemical properties at high pressure.

Słowa kluczowe:

Physicochemical properties, Intermolecular free length, Ultrasonic velocity, High-pressure food processing, Olive oils

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
Siegoczyński R.M.-other affiliation
Ptasznik S.-Air Force Institute of Technology (PL)
35p.
10.Kiełczyński P., Szalewski M., Balcerzak A., Inverse procedure for simultaneous evaluation of viscosity and density of Newtonian liquids from dispersion curves of Love waves, JOURNAL OF APPLIED PHYSICS, ISSN: 0021-8979, DOI: 10.1063/1.4891018, Vol.116, pp.044902-1-7, 2014

Streszczenie:

Simultaneous determination of the viscosity and density of liquids is of great importance in the monitoring of technological processes in the chemical, petroleum, and pharmaceutical industry, as well as in geophysics. In this paper, the authors present the application of Love waves for simultaneous inverse determination of the viscosity and density of liquids. The inversion procedure is based on measurements of the dispersion curves of phase velocity and attenuation of ultrasonic Love waves. The direct problem of the Love wave propagation in a layered waveguide covered by a viscous liquid was formulated and solved. Love waves propagate in an elastic layered waveguide covered on its surface with a viscous (Newtonian) liquid. The inverse problem is formulated as an optimization problem with appropriately constructed objective function that depends on the material properties of an elastic waveguide of the Love wave, material parameters of a liquid (i.e., viscosity and density), and the experimental data. The results of numerical calculations show that Love waves can be efficiently applied to determine simultaneously the physical properties of liquids (i.e., viscosity and density). Sensors based on this method can be very attractive for industrial applications to monitor on-line the parameters (density and viscosity) of process liquid during the course of technological processes, e.g., in polymer industry.

Słowa kluczowe:

Viscosity, Inverse problems, Wave attenuation, Mechanical waves, Viscosity measurements

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
30p.
11.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Malanowski A., Kościesza R., Tarakowski R., Rostocki A.J., Siegoczyński R.M., Determination of physicochemical properties of diacylglycerol oil at high pressure by means of ultrasonic methods, Ultrasonics, ISSN: 0041-624X, DOI: 10.1016/j.ultras.2014.06.013, Vol.54, No.8, pp.2134-2140, 2014

Streszczenie:

The purpose of the paper is to address, using ultrasonic methods, the impact of temperature and pressure on the physicochemical properties of liquids on the example of diacylglycerol (DAG) oil. The paper presents measurements of sound velocity, density and volume of DAG oil sample in the pressure range from atmospheric pressure up to 0.6 GPa and at temperatures ranging from 20 to 50°C.

Sound speed measurements were performed in an ultrasonic setup with a DAG oil sample located in the high-pressure chamber. An ultrasonic method that uses cross-correlation method to determine the time-of-flight of the ultrasonic pulses through the liquid was employed to measure the sound velocity in DAG oil. This method is fast and reliable tool for measuring sound velocity. The DAG oil density at high pressure was determined from the monitoring of sample volume change. The adiabatic compressibility and isothermal compressibility have been calculated on the basis of experimental data. Discontinuities in isotherms of the sound speed versus pressure point to the existence of phase transitions in DAG oil. The ultrasonic method presented in this study can be applied to investigate the physicochemical parameters of other liquids not only edible oils.

Słowa kluczowe:

Ultrasonic methods, Sound velocity, Phase transitions, High pressure food processing, Physicochemical parameters

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Malanowski A.-other affiliation
Kościesza R.-other affiliation
Tarakowski R.-other affiliation
Rostocki A.J.-Warsaw University of Technology (PL)
Siegoczyński R.M.-other affiliation
30p.
12.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J., Siegoczyński R.M., Thermodynamic Method for Measuring the B/A Nonlinear Parameter Under High Pressure, ENGINEERING TRANSACTIONS (ROZPRAWY INŻYNIERSKIE), ISSN: 0867-888X, Vol.62, No.1, pp.5-15, 2014

Streszczenie:

The nonlinearity parameter B/A is a measure of the nonlinearity of the equation of state for a fluid. The nonlinearity parameter B/A is a physical parameter often used in acoustics, from underwater acoustics to biology and medicine. It can provide information about structural properties of the medium, internal pressure and inter-molecular spacing. The thermodynamic method has been applied for determination of B/A parameter in diacylglycerol (DAG) oil as a function of pressure at various temperatures. Isotherms of the density and phase velocity of longitudinal ultrasonic wave as a function of pressure have been measured. Using the thermo- dynamic method along with measured isotherms of sound speed and density, the nonlinearity parameter B/A (for DAG oil) was evaluated as a function of pressure (up to 220 MPa) at various temperatures ranging from 20 to 50◦C.

Słowa kluczowe:

Nonlinearity parameter B/A, thermodynamic method, high pressure, longitudinal ultrasonic wave velocity

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
Siegoczyński R.M.-other affiliation
7p.
13.Trawiński Z., Wójcik J., Nowicki A., Balcerzak A., Olszewski R., Frankowska E., Zegadło A., Rydzyński P., Assessment of left ventricle phantom wall compressibility by ultrasound and computed tomography methods, HYDROACOUSTICS, ISSN: 1642-1817, Vol.17, pp.211-218, 2014

Streszczenie:

The present work concerns the sonographic model of the left ventricle (LV) examined in the Computed Tomography (CT) environment and compare radial strain calculations obtained by two different techniques: the speckle tracking ultrasonography and the Multislices Computed Tomography (MSCT). The Left Ventricular (LF) phantom was fabricated from 10% solution of the poly(vinyl alcohol) (PVA). Our model of the LV was driven by the computer- controlled hydraulic piston Super -Pump (Vivitro Inc., Canada) with adjustable fluid volumes. The stroke volume was set at of 24ml. The fluid pressure was changed within range of 0- 60 mmHg, and the pulse rate was of 60 cycles/per minute. The relationships between computer controlled left ventricular wall deformations and its visual izations of the echocardiographic and CT imaging, both in the normal and pathological conditions were examined. The difference of assessment the Radial Strain between two methods was not exceeding 1.1%.

Afiliacje autorów:

Trawiński Z.-IPPT PAN
Wójcik J.-IPPT PAN
Nowicki A.-IPPT PAN
Balcerzak A.-IPPT PAN
Olszewski R.-other affiliation
Frankowska E.-Military Medical Institute (PL)
Zegadło A.-other affiliation
Rydzyński P.-other affiliation
7p.
14.Rostocki A.J., Tarakowski R., Kiełczyński P., Szalewski M., Balcerzak A., Ptasznik S., The Ultrasonic Investigation of Phase Transition in Olive Oil up to 0,7 GPa, JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY, ISSN: 0003-021X, DOI: 10.1007/s11746-013-2223-2, Vol.90, No.6, pp.813-818, 2013

Streszczenie:

This paper presents measurements of sound velocity and attenuation in olive oil, with known chemical composition, as a function of pressure, within the range of pressure up to 0.7 GPa. Dependencies of sound velocity, relative ultrasonic wave attenuation, volume, and adiabatic compressibility on pressure show discontinuities. This proves the existence of the first order phase transition in olive oil (liquid to solid-like phase transition). Rapid and large changes in relative attenuation testify to the existence of a phase transition in olive oil. Moreover, the kinetics of phase transition was also investigated. Measurement of acoustic wave velocity and relative attenuation in olive oil during the phase transition and in the high-pressure phase is a novelty. The results obtained can be useful in the development of new methods in food (edible oils) control, processing, and preservation.

Słowa kluczowe:

Vegetable oils, Sound velocity, Triacylglycerols, Phase transition, High pressure

Afiliacje autorów:

Rostocki A.J.-Warsaw University of Technology (PL)
Tarakowski R.-other affiliation
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Ptasznik S.-Air Force Institute of Technology (PL)
30p.
15.Rostocki A.J., Malanowski A., Tarakowski R., Szlachta K., Kiełczyński P., Szalewski M., Balcerzak A., Ptasznik S., The sound velocity measurement in diacylglycerol oil under high pressure, HIGH PRESSURE RESEARCH, ISSN: 0895-7959, DOI: 10.1080/08957959.2013.769975, Vol.33, No.1, pp.172-177, 2013

Streszczenie:

In this article, the influence of high pressure on sound velocity at 293 K has been presented. The investigated diacylglycerol oil (DAG – [D82T18]AG) was composed of 82% DAGs and 18% triacylglycerols. The variation of sound velocity with hydrostatic pressure for DAG was evaluated up to 400 MPa. The phase transformation in DAG has been observed as a discontinuity of the dependence of sound velocity on pressure. The sound velocity during the phase transition has shown distinct increment. Also the volume changes have been measured. It has shown the rapid drop of the volume at the phase transformation pressure due to the possible crystallization of DAG oil.

Słowa kluczowe:

high pressure, velocity, DAG

Afiliacje autorów:

Rostocki A.J.-Warsaw University of Technology (PL)
Malanowski A.-other affiliation
Tarakowski R.-other affiliation
Szlachta K.-other affiliation
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Ptasznik S.-Air Force Institute of Technology (PL)
25p.
16.Malanowski A., Rostocki A.J., Kiełczyński P., Szalewski M., Balcerzak A., Kościesza R., Tarakowski R., Ptasznik S., Siegoczyński R.M., Viscosity and compressibility of diacylglycerol under high pressure, HIGH PRESSURE RESEARCH, ISSN: 0895-7959, DOI: 10.1080/08957959.2013.775649, Vol.33, No.1, pp.178-183, 2013

Streszczenie:

The influence of high pressure on viscosity and compressibility of diacylglycerol (DAG) oil has been presented in this paper. The investigated DAG oil was composed of 82% of DAGs and 18% TAGs (triacylglycerols). The dynamic viscosity of DAG was investigated as a function of the pressure up to 400 MPa. The viscosity was measured by means of the surface acoustic wave method, where the acoustic waveguides were used as sensing elements. As the pressure was rising, the larger ultrasonic wave attenuation was observed, whereas amplitude decreased with the liquid viscosity augmentation. Measured changes of physical properties were most significant in the pressure range near the phase transition. Deeper understanding of DAG viscosity and compressibility changes versus pressure could shed more light on thermodynamic properties of edible oils.

Słowa kluczowe:

DAG viscosity, compressibility, phase transitions, transmitted and scattered light

Afiliacje autorów:

Malanowski A.-other affiliation
Rostocki A.J.-Warsaw University of Technology (PL)
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Kościesza R.-other affiliation
Tarakowski R.-other affiliation
Ptasznik S.-Air Force Institute of Technology (PL)
Siegoczyński R.M.-other affiliation
25p.
17.Kiełczyński P., Szalewski M., Balcerzak A., Malanowski A., Siegoczyński R.M., Ptasznik S., Investigation of high-pressure phase transitions in DAG (diacylglycerol) oil using the Bleustein–Gulyaev ultrasonic wave method, FOOD RESEARCH INTERNATIONAL, ISSN: 0963-9969, DOI: 10.1016/j.foodres.2012.07.025, Vol.49, pp.60-64, 2012

Streszczenie:

In this paper, phase transitions in diacylglycerol (DAG) oil are investigated by using an ultrasonic method for measuring viscosity. Viscosity of diacylglycerol (DAG) oil is measured over a wide range of hydrostatic pressures up to 500 MPa, and at temperatures ranging from 10 to 40 °C. The observed discontinuities in the viscosity versus pressure curves (isotherms) indicate phase transitions. An original ultrasonic method that uses the surface acoustic Bleustein–Gulyaev (B–G) wave was employed to measure the viscosity of DAG oil at high pressure range. This method allows for fast and reliable measurement of DAG oil viscosity along various isotherms. Moreover, the kinetics of the observed phase transformations at various temperatures was analyzed. The results of the study are a novelty, and can be helpful in evaluating the physicochemical properties of edible oils.

Słowa kluczowe:

Edible oils, Ultrasonic methods, Diacylglycerols, Viscosity, Phase transitions, High pressure

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Malanowski A.-other affiliation
Siegoczyński R.M.-other affiliation
Ptasznik S.-Air Force Institute of Technology (PL)
40p.
18.Kiełczyński P., Szalewski M., Balcerzak A., Effect of a viscous liquid loading on Love wave propagation, INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, ISSN: 0020-7683, DOI: 10.1016/j.ijsolstr.2012.04.030, Vol.49, No.17, pp.2314-2319, 2012

Streszczenie:

This paper describes a theory of surface Love waves propagating in a layered elastic waveguide loaded on its surface by a viscous (Newtonian) liquid. An analytical expression for the complex dispersion equation of Love waves has been established. The real and imaginary parts of the complex dispersion equation were separated and resulting system of nonlinear algebraic equations was solved numerically. The influence of the viscosity of liquid on the dispersion curves of phase velocity, the wave attenuation and the distribution of the Love wave amplitude is analyzed numerically. The propagation loss is produced only by the viscosity of liquids. Elastic layered waveguide is assumed to be loss-less. The numerical solutions show the dependence of the phase velocity change, the wave attenuation and the wave amplitude distribution in terms of the liquid viscosity and the wave frequency. The results of the investigations are fundamental and can be applied in the design and development of liquid viscosity sensors and biosensors, in Non-Destructive Testing (NDT) of materials, in geophysics and seismology.

Słowa kluczowe:

Love waves, Viscous liquids, Dispersion relations, Attenuation, Viscosity sensors

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
40p.
19.Rostocki A.J., Siegoczyński R.M., Kiełczyński P., Szalewski M., Balcerzak A., Zduniak M., Employment of a novel ultrasonic method to investigate high pressure phase transitions in oleic acid, HIGH PRESSURE RESEARCH, ISSN: 0895-7959, Vol.31, No.2, pp.334-338, 2011

Streszczenie:

In this work, the variation of sound velocity with hydrostatic pressure for oleic acid is evaluated up to 350MPa. During the measurement, we identified the phase transformation of oleic acid and the presence of the hysteresis of the dependence of sound velocity on pressure. From the performed measurements, it can be seen that the dependence of sound velocity on pressure can be used to investigate phase transformations in natural oils. Ultrasonic waves were excited and detected using piezoelectric LiNbO3(Y-36 cut) 5MHz transducers. The phase velocity of the longitudinal ultrasonicwaveswas measured using a cross-correlation method to evaluate the time of flight.

Słowa kluczowe:

Sound velocity, oleic acid, high pressure, phase transition

Afiliacje autorów:

Rostocki A.J.-Warsaw University of Technology (PL)
Siegoczyński R.M.-other affiliation
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Zduniak M.-other affiliation
25p.
20.Kiełczyński P., Szalewski M., Balcerzak A., Rostocki A.J., Tefelski D.B., Application of SH surface acoustic waves for measuring the viscosity of liquids in function of pressure and temperature, Ultrasonics, ISSN: 0041-624X, Vol.51, No.8, pp.921-924, 2011

Streszczenie:

Viscosity measurements were carried out on triolein at pressures from atmospheric up to 650 MPa and in the temperature range from 10 C to 40 C using ultrasonic measuring setup. Bleustein–Gulyaev SH surface acoustic waves waveguides were used as viscosity sensors. Additionally, pressure changes occurring during phase transition have been measured over the same temperature range. Application of ultrasonic SH surface acoustic waves in the liquid viscosity measurements at high pressure has many advantages. It enables viscosity measurement during phase transitions and in the high-pressure range where the classical viscosity measurement methods cannot operate. Measurements of phase transition kinetics and viscosity of liquids at high pressures and various temperatures (isotherms) is a novelty. The knowledge of changes in viscosity in function of pressure and temperature can help to obtain a deeper insight into thermodynamic properties of liquids.

Słowa kluczowe:

SH surface acoustic waves, Viscosity, High pressure, Phase transitions

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
Tefelski D.B.-other affiliation
25p.
21.Balcerzak A., Aleksiejuk M., Zhavnerko G., Agabekov V., Sensing properties of two-component Langmuir-Blodgett layer and its porous derivative in SAW sensor for vapors of methanol and ethanol, THIN SOLID FILMS, ISSN: 0040-6090, DOI: 10.1016/j.tsf.2009.10.157, Vol.518, pp.3402-3406, 2010

Streszczenie:

Two-component Langmuir–Blodgett film has been fabricated from equimolar mixture of 5-[[1,3-dioxo-3-[4-(1-oxooctadecyl)phenyl]propyl]amino]-1,3-benzenedicarboxylic acid with cetylamine. Porous one-component derivative of this film has been obtained by removing of cetylamine. Both films have been investigated as sensing layers of the surface acoustic wave sensors for vapors of methanol and ethanol in air. These films react on the alcohol vapors. Time of the sensor reaction is less than 2 s and this reaction is reversible. The response parameters of the sensor depend on the kind of the alcohol and the structure of the layer. An explanation of the observed differences in the behavior of both layers in contact with vapors of the alcohols has been proposed.

Słowa kluczowe:

Self-assembled monolayer, Langmuir–Blodgett films, Organic films, Surface acoustic wave, Sensors, Alcohols, Methanol, Ethanol

Afiliacje autorów:

Balcerzak A.-IPPT PAN
Aleksiejuk M.-IPPT PAN
Zhavnerko G.-Institute of Chemistry of New Materials, Belarus National Academy of Sciences (BY)
Agabekov V.-Institute of Chemistry of New Materials, Belarus National Academy of Sciences (BY)
32p.
22.Balcerzak A., A new nanoporous material in chemical sensor for vapors of some volatile organic solvents, ARCHIVES OF METALLURGY AND MATERIALS, ISSN: 1733-3490, Vol.54, pp.717-722, 200920p.
23.Balcerzak A., Adsoption properties of porous Langmuir-Blodgett layer used in SAW sensor for vapors of some chlorinated hydrocarbons, ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, Vol.34, No.3, pp.345-352, 20099p.
24.Balcerzak A., Ultrasonic measurements of aqueous solutions of β-cyclodextrin with alkyl pyridinium bromides, ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, Vol.33, No.4, pp.413-427, 2008
25.Balcerzak A., Zhavnerko G., Ultrasonic chemical sensor for detection of aliphatic and aromatic hydrocarbons in air, ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, Vol.32, No.4, pp.53-58, 2007
26.Balcerzak A., Rejmund F., Gutkiewicz P., Zienkiewicz B., Zhavnerko G., Ultrasonic chemical sensor with organic monomolecular layer, ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, Vol.31, No.4, pp.47-52, 2006

Streszczenie:

In this work a structure of a ultrasonic chemical sensor with organic monomolecular layer as well as introductory measurement with the help of a set-up constructed in IFTR PAS are presented. Chemical composition of this layer is an equimolar mixture of 5-[[1,3-dioxo-3- [4-(1-oxooctadecyl) phenyl] propyl] amino] – 1,3 – benzenedicarboxylic acid (DA) and cetylamine (CA). The thickness of this layer is equal to dimension of one molecule. The sensor layer was deposited on one channel of the bi-channel sensor delay line (made from lithium niobiate) by means of the Langmuir–Blodgett method. The chemical sensitivity of this sensor to some mixtures of air with vapor of volatile organic compounds has been investigated

Słowa kluczowe:

ultrasonic chemical sensor, Langmuir–Blodgett layers, air-organic vapor mixtures, volatile organic compounds

Afiliacje autorów:

Balcerzak A.-IPPT PAN
Rejmund F.-IPPT PAN
Gutkiewicz P.-IPPT PAN
Zienkiewicz B.-IPPT PAN
Zhavnerko G.-Institute of Chemistry of New Materials, Belarus National Academy of Sciences (BY)
27.Balcerzak A., Zhavnerko G., Langmuir-Blodgett layer as chemosensitive element of ultrasonic chemical sensor, MOLECULAR AND QUANTUM ACOUSTICS. ANNUAL JOURNAL, ISSN: 0208-5151, Vol.27, pp.17-24, 2006
28.Balcerzak A., Ultrasonic measurements in the 1-(trans-4-hexylcyclohexyl)-4-isothiocyanatobenzene near the nematic-isotropic transition, ARCHIVES OF ACOUSTICS, ISSN: 0137-5075, Vol.30, pp.373-378, 2005
29.Balcerzak A., Relaxation phenomena in the nematic phase of liquid crystal near phase transition, MOLECULAR AND QUANTUM ACOUSTICS. ANNUAL JOURNAL, ISSN: 0208-5151, Vol.26, No.7, pp.7-13, 2005
30.Balcerzak A., Rejmund F., Gutkiewicz P., Zienkiewicz B., Zhavnerko G., Surface acoustic wave (saw) chemical sensor with Langmuir-Blodgett layer, PRACE KOMISJI NAUK CERAMICZNYCH - POLSKI BIULETYN CERAMICZNY. CERAMIKA, ISSN: 0860-3340, Vol.89, pp.190-195, 2005
31.Kiełczyński P., Pajewski W., Szalewski M., Balcerzak A., Measurement of the shear storage modulus and viscosity of liquids using the Bleustein–Gulyaev wave, REVIEW OF SCIENTIFIC INSTRUMENTS, ISSN: 0034-6748, DOI: 10.1063/1.1765760, Vol.75, No.7, pp.2362-2367, 2004
32.Balcerzak A., Płowiec R., Charakterystyka i konstrukcja zbudowanego w IPPT stanowiska do ultradźwiękowego badania zjawisk relaksacyjnych w cieczach w zakresie częstotliwości 10 - 150 MHz, Prace IPPT - IFTR Reports, ISSN: 2299-3657, No.21, pp.1-16, 1994
33.Balcerzak A., Bazior Z., Kozłowski Z., Zautomatyzowany układ do pomiarów ultradźwiękowych w cieczach metodą rezonacyjną (Eggersa), Prace IPPT - IFTR Reports, ISSN: 2299-3657, No.17, pp.1-14, 1992

Lista rozdziałów w ostatnich monografiach
1.
508
Balcerzak A., Advances in Acoustics 2016, rozdział: Similarities and differences of physicochemical properties of the diand triacylglycerols under high pressure evaluated from the results of ultrasonic measurements, Polish Acoustical Society, Warsaw Division, Institute of Fundamental Technological Research PAS, 1, pp.125-138, 2016

Prace konferencyjne
1.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Ptasznik S., Rostocki A.J., Investigation of regular and anomalous behavior of liquid media under high pressure using ultrasonic methods, 2017 IEEE, 2017 IEEE International Ultrasonics Symposium, 2017-09-06/09-09, Washington, DC (US), pp.1-4, 2017

Streszczenie:

In many industrial technological processes, liquids are subjected to high pressures, e.g., in the high pressure food preservation. Similarly, in modern fuel injection systems for diesel engines, biofuel is subjected to a pressure up to 300 MPa. In such conditions, in liquids, high-pressure phase transitions (solidification) can occur that substantially increase the density and liquid viscosity. This solidification can result in significant problems with engine failure under cold-start conditions. This is an evident recipe for disaster, since the engine and its accessories would be very likely quickly destroyed. Thus, it is important to determine at what pressures and temperatures phase transitions occur. Conventional mechanical methods for measuring physicochemical properties of liquids at these extreme conditions do not operate. By contrast, ultrasonic techniques are very suitable for measurements of hysicochemical properties of liquids at high pressure, since they are non-destructive, can be fully automated and are characterized by the absence of moving parts. The aim of this work is to study the high-pressure hysicochemical properties of liquids (exemplified by a Camelina sativa - false flax oil) using novel ultrasonic methods.

Słowa kluczowe:

pressure; ultrasonic methods; phase transitions; Camelina sativa

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Ptasznik S.-Air Force Institute of Technology (PL)
Rostocki A.J.-Warsaw University of Technology (PL)
2.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., The influence of rheological parameters of viscoelastic liquids on the propagation characteristics of ultrasonic Love waves, 2017 IEEE, 2017 IEEE International Ultrasonics Symposium, 2017-09-06/09-09, Washington, DC (US), pp.1-4, 2017

Streszczenie:

Progress in materials science has led to development of new materials with improved functional characteristics. One of the new types of materials introduced into industrial practice are plastics and polymers. These materials exhibit rheological (viscoelastic) properties, which combine simultaneously the properties of liquids and solids. Due to their attractive features, such as low specific weight, high resistance to chemical agents, ease of processing, cost ffectiveness etc. these materials are widely used in chemical, automotive, aviation and space industry. In addition, these materials are very common in many aspects of everyday life. Thus, it is very important, both from the theoretical and practical point of view, to develop new, robust and accurate methods to measure the rheological parameters (viscosity η, elasticity μ and density ρ) of plastics and polymers. The conventional mechanical methods used so far to this end are outdated, time consuming, and cumbersome. Ultrasonic methods do not possess these disadvantages. The first step in the formulation of the Inverse Method for evaluating the rheological parameters of viscoelastic liquids is to formulate and solve the Direct Sturm-Liouville Problem for Love waves propagating in the investigated layered elastic aveguide loaded on its surface with various types of viscoelastic materials (e.g., liquids). The aim of this study is to develop a rigorous mathematical model (Direct Sturm-Liouville Problem) of propagation of shear horizontal (SH) surface Love waves in layered viscoelastic structures, i.e., in layered elastic waveguides with a guiding surface layer covered with a viscoelastic material described by Kelvin-Voigt, Newton and Maxwell viscoelastic models respectively

Słowa kluczowe:

Love waves; viscoelastic liquid; Sturm-Liouville problem; dispersion curves

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
3.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Evaluation of viscoelastic parameters of surface layers by ultrasonic Love waves, IUS 2016, IEEE International Ultrasonics Symposium, 2016-09-18/09-21, Tours (FR), DOI: 10.1109/ULTSYM.2016.7728446, pp.1-4, 2016

Streszczenie:

Simultaneous determination of the rheological parameters of viscoelastic surface layers is very important in many applications such as: sensors, geophysics, seismology, and in the NDT of materials. Love wave energy is concentrated near the waveguide surface, so that Love waves are especially suited to study the material properties of surface layers. In this work, the Direct Sturm-Liouville Problem for the Love wave propagation in a layered viscoelastic waveguide have been presented and solved. Next, the Inverse Problem was created and solved as an Optimization Problem. The adequately formulated objective function that depends on the elastic and viscoelastic parameters of a waveguide of the Love wave and the experimental data was used. The solution of the Inverse Problem allows to determine unknown values of the viscosity and shear elasticity of a viscoelastic medium from measurements of the dispersion curves of Love waves.

Słowa kluczowe:

Love waves, rheological properties, viscoelastic materials, inverse problems, viscosity, shear elasticity

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
4.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J., Ptasznik S., Investigation of high-pressure phase transitions in biofuels by means of ultrasonic methods, IUS 2016, IEEE International Ultrasonics Symposium, 2016-09-18/09-21, Tours (FR), DOI: 10.1109/ULTSYM.2016.7728444, pp.1-4, 2016

Streszczenie:

The fundamental goal of this work is to verify the hypothesis of the existence of high-pressure phase transitions in biofuel components on the example of rapeseed fatty acid methyl esters (RME), by using ultrasonic methods. in a wide range of pressures (from atmospheric pressure to 300 MPa) and for various temperatures from 5 to 20 °C. Investigation of phase transitions in biofuels at high pressures is of great importance in the design of injection systems in modern diesel engines (common rail). Direct examination of phase transitions in liquids under high pressure, using classical methods, is very difficult. To overcome this disadvantage, the authors applied ultrasonic methods (viscosity measurement), which in contrast to the classical methods allow in a relatively simple way the investigation of high-pressure properties of liquids. Viscosity was measured by the original method that uses ultrasonic surface waves of the Bleustein-Gulyaev type, developed by the authors at the Institute of Fundamental Technological Research in Warsaw. From the measured viscosity isotherms, the occurrence of high-pressure phase transitions in methyl esters were evaluated.

Słowa kluczowe:

high-pressure phase transitions, biofuels, ultrasonic Bleustein-Gulyaev waves, viscosity measurements

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
Ptasznik S.-Air Force Institute of Technology (PL)
5.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Inverse method for evaluation of elastic parameters in functionally graded materials using ultrasonic Love wave, IUS 2015, IEEE International Ultrasonics Symposium, 2015-10-21/10-24, Taipei (TW), DOI: 10.1109/ULTSYM.2015.0344, pp.1-4, 2015

Streszczenie:

The aim of this study was to evaluate the inverse procedure to determine profiles (as a function of depth) of the mechanical properties of inhomogeneous FGM resulting from the application of various technological processes of surface treatment. First, the Direct Sturm-Liouville Problem for Love waves propagating in elastic graded materials with various profiles of the shear stiffness as a function of the distance from the surface, has been solved using the Finite Difference Method and Transfer Matrix Method (Haskell-Thompson method). Love wave dispersion curves were evaluated in the frequency range from 4 to 23 MHz. The Inverse Problem was formulated as an Optimization Problem with appropriately constructed objective function that depended on the material properties of an elastic waveguide of the Love wave and the experimental data. To minimize the considered objective function, optimization procedures of the Nelder-Mead type from Scilab software package were employed.

Słowa kluczowe:

Love waves, Inverse Methods, Functionally Graded Materials, Elastic parameters, Sturm-Liouville Problem

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
6.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J., Siegoczyński R.M., Ptasznik S., Ultrasonic studies of physicochemical parameters of biofuels in a broad range of pressures and temperatures, IUS 2015, IEEE International Ultrasonics Symposium, 2015-10-21/10-24, Taipei (TW), DOI: 10.1109/ULTSYM.2015.0345, pp.1-4, 2015

Streszczenie:

The aim of the study was to investigate the phase transitions in biofuel components by using ultrasonic methods on the example of methyl esters of fatty acids, in a wide range of pressures (from atmospheric pressure to 400 MPa) and for various temperatures from 5 to 20 °C. Investigation of phase transitions in biofuels at high pressures is of great importance in the design of injection systems in modern diesel engines (common rail). Direct examination of phase transitions in liquids under high pressure, using classical methods, is very difficult. To overcome this disadvantage, the authors applied ultrasonic methods (viscosity measurement), which in contrast to the classical methods allow in a relatively simple way the investigation high-pressure properties of liquids. Viscosity was measured by the original method that uses ultrasonic surface waves of the Bleustein-Gulyaev type, developed by the authors at the Institute of Fundamental Technological Research in Warsaw. From the measured viscosity isotherms, the occurrence and kinetics of high-pressure phase transitions in methyl esters were evaluated.

Słowa kluczowe:

High pressure phase transitions, physicochemical parameters of biofuels, ultrasonic viscosity measurements, rapeseed methyl esters

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
Siegoczyński R.M.-other affiliation
Ptasznik S.-Air Force Institute of Technology (PL)
7.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Density and viscosity of liquids determination using an inverse method for Love wave propagation, IUS 15, IEEE International Ultrasonics Symposium, 2014-09-03/09-06, Chicago (US), DOI: 10.1109/ULTSYM.2014.0496, pp.1992-1995, 2014

Streszczenie:

The aim of this work was to establish an inversion procedure for the simultaneous determination of the viscosity and density of liquids. To this end, measurements of dispersion curves of the phase velocity and attenuation of shear horizontal Love waves were applied. Love waves propagate in an elastic layered waveguide covered on its surface with an investigated viscous (Newtonian) liquid. Firstly, the Direct Sturm-Liouville Problem of the Love wave propagation in a such waveguide was formulated and solved. Subsequently, the Inverse Problem was formulated and solved as an Optimization Problem. The appropriately constructed objective function that depends on the material properties of a waveguide of the Love wave, material properties of an investigated liquid (viscosity and density), and the experimental data was employed. The simultaneous determination of both liquid density and viscosity is important in the monitoring of technological processes in many industries (e.g. chemical, petroleum, pharmaceutical industry) as well as in geophysics.

Słowa kluczowe:

Love waves, Inverse Methods, Density, Viscosity of liquids , Sturm-Liouville Problem

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
8.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J., Siegoczyński R.M., Ultrasonic evaluation of thermodynamic parameters of liquids under high pressure, IUS 15, IEEE International Ultrasonics Symposium, 2014-09-03/09-06, Chicago (US), DOI: 10.1109/ULTSYM.2014.0497, pp.1996-1999, 2014

Streszczenie:

In many technological processes (e.g. in chemical, petrochemical, food and plastics industry) liquids are subjected to high pressures and temperatures. Therefore knowledge of their thermodynamic properties is essential for understanding, design and control of the process technology. Direct evaluation of thermodynamic parameters of liquids under high pressure, using conventional methods, is very difficult. Therefore, these methods are useless in industrial conditions, particularly in on-line control of the technological parameters of liquids. Ultrasonic methods (e.g., sound speed measurements) due to their simplicity and accuracy are very suitable for this purpose. The sound velocity is closely related with numerous thermodynamic properties of liquids. In this paper we report ultrasonic velocity and density measurements (performed by the authors) in diacylglycerol (DAG) oil over a range of pressures and temperatures. On the basis of experimental results (the sound velocity and liquid density versus pressure and temperature) the thermal expansion coefficient, specific heat capacity at constant pressure, isothermal and adiabatic compressibility of DAG oil were calculated as a function of pressure and temperature.

Słowa kluczowe:

Themodynamic parameters of liquids, high pressure, ultrasonic velocity, density, compressibility

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
Siegoczyński R.M.-other affiliation
9.Trawiński Z., Wójcik J., Nowicki A., Balcerzak A., Olszewski R., Frankowska E., Zegadło A., Rydzyński P., Evaluation of Left Ventricle Phantom by Ultrasound and Multislices Computer Tomography Imaging, FA2014, 7th FORUM ACUSTICUM 2014, 2014-09-07/09-12, Kraków (PL), No.R24_4, pp.1-5, 2014

Streszczenie:

The main goal of this study was to verify the suitability of sonographic model of the left ventricle (LV) in Computed Tomography (CT) environment and compare radial strain calculations obtained by two different techniques: speckle tracking ultrasonography and Multislices Computed Tomography (MSCT). The Left Ventricular (LF) phantom was fabricate from 10% solution of the poly(vinyl alcohol) (PVA). Our model of the LV was driven by the computer-controlled hydraulic piston Super-Pump (Vivitro Inc., Canada) with adjustable fluid volumes. During cycle of the pump, the Stroke Volume (SV) of water was pumped into the LV phantom and returned to the pump, resulting in changing the inner and outer diameters of the phantom. The stroke volume was set at of 24ml. The fluid pressure was changed within range of 0-60 mmHg, and the pulse rate was equal 60 cycles/per minute. The relationships between computer controlled left ventricular wall deformations and its visualizations of the echocardiographic and CT imaging, both in the normal and pathological conditions were examined. The difference of assessment the Radial Strain between two methods was not exceeding 1.1%.

Afiliacje autorów:

Trawiński Z.-IPPT PAN
Wójcik J.-IPPT PAN
Nowicki A.-IPPT PAN
Balcerzak A.-IPPT PAN
Olszewski R.-other affiliation
Frankowska E.-Military Medical Institute (PL)
Zegadło A.-other affiliation
Rydzyński P.-other affiliation
10.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J., Siegoczyński R.M., Thermodynamic method for measuring the B/A nonlinear parameter under high pressure, IUS 2013, IEEE International Ultrasonics Symposium, 2013-07-21/07-25, Praga (CZ), DOI: 10.1109/ULTSYM.2013.0424, Vol.1, pp.1665-1667, 2013

Streszczenie:

The nonlinearity parameter B/A is a measure of the nonlinearity of the equation of state for a fluid. It plays a significant role in acoustics, from underwater acoustics to biology and medicine. The nonlinearity parameter is important because it determines distortion of a finite amplitude wave propagating in the fluid. Moreover, it can be related to the molecular dynamics of the medium and it can to provide information about structural properties of medium, internal pressures, clustering, intermolecular spacing, etc. Importance of the B/A parameter increases with the development of high-pressure technologies. The thermodynamic method has been applied for determination of B/A parameter in diacylglycerol (DAG) oil as a function of pressure at various temperatures.

Słowa kluczowe:

Nonlinearity parameter B/A, Thermodynamic method, ultrasoniv velocity, high pressure,

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
Siegoczyński R.M.-other affiliation
11.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J., Siegoczyński R.M., Ptasznik S., Ultrasonic investigation of physicochemical properties of liquids under high pressure, IUS 2013, IEEE International Ultrasonics Symposium, 2013-07-21/07-25, Praga (CZ), DOI: 10.1109/ULTSYM.2013.0414, Vol.1, pp.1626-1629, 2013

Streszczenie:

High pressure research of the physicochemical properties of liquids has been stimulated by the fast development of such technologies as biodiesel production, high-pressure food processing and conservation, modification of biotechnological properties. Monitoring and studying liquid viscosity and ultrasonic wave velocity in liquids as a function of pressure and temperature enable to evaluate many important physicochemical parameters of liquids. These methods allow also insight into the phenomena governing the microstructural modifications occurring in treated substances, i.e. phase transitions. The knowledge of physicochemical properties (e.g. density, relaxation time, internal pressure or free volume) of pressurized substances is essential for understanding, design and control of the process technology. Measurements were conducted on the example of diacylglycerol oil (DAG oil), that is an important constituent of oils and fats.

Słowa kluczowe:

Physicochemical parameters of liquids, high pressure, ultrasonic velocity, viscosity of liquids, DAG oil

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
Siegoczyński R.M.-other affiliation
Ptasznik S.-Air Force Institute of Technology (PL)
12.Kiełczyński P., Szalewski M., Balcerzak A., Malanowski A., Rostocki A.J., Application of the Bleustein-Gulyaev wave method for investigation of high-pressure phase transitions in diacylglycerol oil, IUS 2012, IEEE International Ultrasonics Symposium, 2012-10-07/10-10, Dresden (DE), DOI: 10.1109/ULTSYM.2012.0127, pp.511-514, 2012

Streszczenie:

Phase transitions in diacylglycerol (DAG) oil were investigated by using an ultrasonic method for measuring viscosity. Viscosity of DAG oil was measured over a wide range of hydrostatic pressures up to 500 MPa, and at temperatures ranging from 10 to 40 °C. The observed discontinuities in the viscosity versus pressure curves (isotherms) indicate phase transitions. An original ultrasonic method that uses the surface acoustic Bleustein-Gulyaev (B-G) wave was employed to measure the viscosity of DAG oil at high pressure range. This method allowed for fast and reliable measurement of DAG oil viscosity along various isotherms. Moreover, the kinetics of the observed phase transformations at various temperatures was analyzed.

Słowa kluczowe:

Viscosity, Temperature measurement, Ultrasonic variables measurement, Acoustics, Pressure measurement, Acoustic measurements, Liquids

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Malanowski A.-other affiliation
Rostocki A.J.-Warsaw University of Technology (PL)
13.Kiełczyński P., Szalewski M., Balcerzak A., Inverse problem of the Love wave propagation in elastic waveguides loaded with a viscous liquid, IUS 2012, IEEE International Ultrasonics Symposium, 2012-10-07/10-10, Dresden (DE), DOI: 10.1109/ULTSYM.2012.0375, pp.1501-1504, 2012

Streszczenie:

The problem of propagation of Love waves in elastic waveguides loaded on the surface by a viscous (Newtonian) liquid is important in many applications such as geophysics, seismology, investigation of the physical properties of liquids. Love wave energy is concentrated near the waveguide surface, so that Love waves are especially suited to study the material properties of surface layers. In this work, the direct problem and the inverse problem of the Love wave propagation in a layered elastic waveguides loaded with a viscous liquid have been formulated and solved. The inverse problem relies on the determination of the material parameters (e.g., the unknown value of liquid viscosity) from measurements of the dispersion curves of Love waves.

Słowa kluczowe:

Liquids, Viscosity, Inverse problems, Surface waves, Dispersion, Linear programming, Liquid waveguides

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
14.Kiełczyński P., Szalewski M., Balcerzak A., Rostocki A.J., Measurements of the viscosity of liquids in function of pressure and temperature using SH surface acoustic waves, IUS 2011, IEEE International Ultrasonics Symposium, 2011-10-18/10-21, Orlando (US), DOI: 10.1109/ULTSYM.2011.0129, pp.535-538, 2011

Streszczenie:

Triolein viscosity was measured at pressures from atmospheric up to 650 MPa and in the temperature range from 10° C to 40° C using ultrasonic measuring setup. Bleustein-Gulyaev SH surface acoustic waves waveguides were used as viscosity sensors. Application of SH surface acoustic waves in the liquid viscosity measurements at high pressure has many advantages. It enables viscosity measurement during phase transitions and in the high-pressure range where the classical viscosity measurement methods cannot operate. The knowledge of changes in viscosity in function of pressure and temperature can help to obtain a deeper insight into thermodynamic properties of liquids. Measurements of phase transition kinetics and viscosity of liquids at high pressures and various temperatures (isotherms) is a novelty.

Słowa kluczowe:

Temperature measurement, Viscosity, Liquids, Ultrasonic variables measurement, Acoustic measurements, Pressure measurement, Acoustics

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
15.Kiełczyński P., Szalewski M., Rostocki A.J., Zduniak M., Siegoczyński R.M., Balcerzak A., Investigation of High-Pressure Phase Transitions in Vegetable Oils by Measuring Phase Velocity of Longitudinal Ultrasonic Waves, IUS 2009, IEEE International Ultrasonics Symposium, 2009-09-20/09-23, Rzym (IT), DOI: 10.1109/ULTSYM.2009.5441766, pp.1563-1566, 2009

Streszczenie:

Monitoring and studying the pressure effect on liquid properties are becoming increasingly important in food, chemical, cosmetic and pharmaceutical industry as well as in laboratory practice. Accurate thermodynamic data in liquids as a function of pressure are required for studies the structure of liquids as well as for various engineering applications. Direct measurement of thermodynamic parameters is very difficult. The velocity of sound is related to many thermodynamic parameters and can be measured relatively simple. In this work the variation of sound velocity and isothermal compressibility with hydrostatic pressure for triolein is evaluated up to 650 MPa. During the measurement we stated the phase transformation of triolein and the presence of the hysteresis of the dependence of sound velocity on pressure. To the authors' knowledge, the measurement of the sound velocity of liquids under high pressure during the phase transition is the novelty. From the performed measurements it results that the dependence of sound velocity on pressure can be used to investigate phase transformations in natural oils.

Słowa kluczowe:

Vegetable oils, Velocity measurement, Phase measurement, Ultrasonic variables measurement, Thermodynamics, Liquids, Pressure measurement, Chemical industry, Monitoring, Pressure effects

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)
Zduniak M.-other affiliation
Siegoczyński R.M.-other affiliation
Balcerzak A.-IPPT PAN

Abstrakty konferencyjne
1.Kiełczyński P., Szalewski M., Balcerzak A., Wieja K., The influence of rheological parameters of viscoelastic liquids on the propagation characteristics of ultrasonic Love waves, 2017 IEEE, 2017 IEEE International Ultrasonics Symposium, 2017-09-06/09-09, Washington, DC (US), pp.415-415, 2017

Streszczenie:

Progress in materials engineering has led to development of new materials with improved functional characteristics. One of the new types of
materials introduced into industrial practice are plastics and polymers. These materials exhibit rheological (viscoelastic) properties, which combine
simultaneously the properties of liquids and solids. Due to their attractive features, such as low specific weight, high resistance to chemical agents,
cost effectiveness etc. these materials are widely used in chemical, automotive, aviation and space industry. Thus, it is very important to develop
new, robust and accurate methods to measure the rheological parameters (viscosity η, elasticity μ and density ρ) of plastics and polymers. The
conventional mechanical methods used so far to this end are outdated, time consuming, and cumbersome. To overcome this problems, the authors
propose the use of ultrasonic methods that employ surface Love waves, what is a novelty.

Słowa kluczowe:

Love waves, Rheological parameters, Rheological models, Polymers

Afiliacje autorów:

Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
2.Kielczynski P., Ptasznik S., Szalewski M., Balcerzak A., Wieja K., Rostocki A.J., Investigation of regular and anomalous behavior of liquid media under high pressure using ultrasonic methods , 2017 IEEE, 2017 IEEE International Ultrasonics Symposium, 2017-09-06/09-09, Washington, DC (US), pp.417-417, 2017

Streszczenie:

Background, Motivation and Objective
In many industrial technological processes, liquids are subjected to high pressures, e.g., in the high pressure food preservation. Similarly, in modern fuel
injection systems for diesel engines, biofuel is subjected to a pressure up to 300 MPa. In such conditions, in liquids, phase transitions can occur that
substantially increase the density and liquid viscosity. This can be very detrimental for the engine or the technological equipment. Thus, it is important to
determine at what pressures and temperatures phase transitions occur. Conventional mechanical methods for measuring physicochemical properties of
liquids at these extreme conditions do not operate. By contrast, ultrasonic techniques are very suitable for measurements of physicochemical properties of
liquids at high pressure, since they are non-destructive and can be fully automated. The aim of this work is to study the high-pressure physicochemical
properties of liquids (exemplified by a camelina sativa - false flax oil) using novel ultrasonic methods.

Słowa kluczowe:

High pressure, Biofuels, Viscosity, Phase transitions

Afiliacje autorów:

Kielczynski P.-IPPT PAN
Ptasznik S.-Air Force Institute of Technology (PL)
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-Warsaw University of Technology (PL)