A Finite-Element Flash Method for Measuring Thermal Conductivity of Liquid

• Authors: J. Mamczur , A. Wasilewski , T. Więcek
• Languages of publication: EN

Abstracts

EN

A laser beam is used to heat a portion of liquid closed in a vessel from the top of it to avoid convection. The temperature is measured at the bottom of the vessel by a laser waveguide sensor. The heating and measuring methods allow using a small amount of liquid of the order of a milliliter fraction. The heat flow through the liquid as well as the surrounding vessel and space is modeled by the finite-element method to calculate the temperature at the bottom vs. time. Thus obtained dependence is used then as a fitting function to get the liquid thermal conductivity among some other fitting parameters.

Keywords

EN

44.05.+e; 44.10.+i; 07.05.Tp; 02.70.Dh; 02.60.Ed

Discipline

• 44.10.+i: Heat conduction(see also 66.25.+g and 66.70.-f in nonelectronic transport properties of condensed matter)
• 44.05.+e: Analytical and numerical techniques
• 02.60.Ed: Interpolation; curve fitting
• 02.70.Dh: Finite-element and Galerkin methods
• 07.05.Tp: Computer modeling and simulation

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 128
• Issue: 2
• Pages: 193-195

Dates

published

2015-08

Contributors

author

J. Mamczur

• Rzeszów University of Technology, al. Powstanców Warszawy 12, Rzeszów, Poland

author

A. Wasilewski

• Rzeszów University of Technology, al. Powstanców Warszawy 12, Rzeszów, Poland

author

T. Więcek

• Rzeszów University of Technology, al. Powstanców Warszawy 12, Rzeszów, Poland

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Identifiers

DOI

10.12693/APhysPolA.128.193