Andrzej Balcerzak, Ph.D., Eng.

Department of Theory of Continuous Media and Nanostructures (ZTOCiN)
Division of Acoustoelectronics (ZeBAk)
position: specialist
telephone: (+48) 22 826 12 81 ext.: 223
room: 530
e-mail: abalcerz
personal site: http://bluebox.ippt.pan.pl/~abalcerz/

Doctoral thesis
1997Badania kompleksów inkluzyjnych jonów organicznych z alfa i beta cyklodekstryną metodami spektroskopii ultradźwiękowej 
supervisor -- Assoc. Prof. Adam Juszkiewicz, Ph.D., Dr. Habil., IPPT PAN
530 
Recent publications
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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.-other affiliation
Ptasznik S.-Air Force Institute of Technology (PL)
2.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
Abstract:

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.

Keywords:

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

Affiliations:
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., 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
Abstract:

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.

Keywords:

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

Affiliations:
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., 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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-other affiliation
Siegoczyński R.M.-other affiliation
5.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
6.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
Abstract:

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.

Keywords:

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

Affiliations:
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
7.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-other affiliation
Siegoczyński R.M.-other affiliation
Ptasznik S.-Air Force Institute of Technology (PL)
8.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
9.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
Abstract:

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.

Keywords:

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

Affiliations:
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.-other affiliation
Siegoczyński R.M.-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, ENGINEERING TRANSACTIONS (ROZPRAWY INŻYNIERSKIE), ISSN: 0867-888X, Vol.62, No.1, pp.5-15, 2014
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-other affiliation
Siegoczyński R.M.-other affiliation
11.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
Abstract:

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%.

Affiliations:
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
12.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
Abstract:

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.

Keywords:

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

Affiliations:
Rostocki A.J.-other affiliation
Tarakowski R.-other affiliation
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Ptasznik S.-Air Force Institute of Technology (PL)
13.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
Abstract:

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.

Keywords:

high pressure, velocity, DAG

Affiliations:
Rostocki A.J.-other affiliation
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)
14.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
Abstract:

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.

Keywords:

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

Affiliations:
Malanowski A.-other affiliation
Rostocki A.J.-other affiliation
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
15.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
Abstract:

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.

Keywords:

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

Affiliations:
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)
16.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
17.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
Abstract:

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.

Keywords:

Sound velocity, oleic acid, high pressure, phase transition

Affiliations:
Rostocki A.J.-other affiliation
Siegoczyński R.M.-other affiliation
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Zduniak M.-other affiliation
18.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Rostocki A.J.-other affiliation
Tefelski D.B.-other affiliation
19.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
Abstract:

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.

Keywords:

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

Affiliations:
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)
20.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, 2009
21.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, 2009
22.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
23.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
24.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
Abstract:

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

Keywords:

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

Affiliations:
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)
25.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
26.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
27.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
28.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
29.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
30.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
31.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

List of chapters in recent monographs
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

Conference papers
1.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
2.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-other affiliation
Ptasznik S.-Air Force Institute of Technology (PL)
3.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
Abstract:

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.

Keywords:

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

Affiliations:
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., 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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-other affiliation
Siegoczyński R.M.-other affiliation
Ptasznik S.-Air Force Institute of Technology (PL)
5.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
Abstract:

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.

Keywords:

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

Affiliations:
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., 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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-other affiliation
Siegoczyński R.M.-other affiliation
7.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
Abstract:

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%.

Affiliations:
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
8.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-other affiliation
Siegoczyński R.M.-other affiliation
9.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Wieja K.-IPPT PAN
Rostocki A.J.-other affiliation
Siegoczyński R.M.-other affiliation
Ptasznik S.-Air Force Institute of Technology (PL)
10.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Malanowski A.-other affiliation
Rostocki A.J.-other affiliation
11.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
12.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Balcerzak A.-IPPT PAN
Rostocki A.J.-other affiliation
13.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
Abstract:

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.

Keywords:

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

Affiliations:
Kiełczyński P.-IPPT PAN
Szalewski M.-IPPT PAN
Rostocki A.J.-other affiliation
Zduniak M.-other affiliation
Siegoczyński R.M.-other affiliation
Balcerzak A.-IPPT PAN