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CONTINUOUS THREE-BODY SYSTEM HEATING TO DETERMINE THERMAL PROPERTIES OF MATERIALS

Aleksander Lipaev

Abstract

The reliable determination of solid material thermal properties (thermal conductivity, thermal diffusivity and heat capacity) are significant for various industries. Knowledge of thermophysical characteristics of reservoir rocks is essential in developing high viscous oil deposits by thermal methods. One of the biggest problems in experimental investigation of thermophysical properties concerns with measurement errors due to multidimensional character of thermal flow (generally, in most cases, one-dimensional theoretical models of heat transfer to determine the above mentioned values, which in practice is a challenge). The authors propose a new method of processing experimental data under continuous heating to determine thermal properties of a sample positioned between two reference bodies with known thermal properties. An advantage of this relative method is that it allows the experimental heat transfer coefficient to be measured from the lateral surfaces of the contacting bodies and to specify the temperature sensor coordinates, which both combined significantly improve the determination accuracy of required parameters. The method has been tested on samples taken from the oilfields in Tatarstan.

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DOI resolver: doi.org/10.5593/sgem2018/1.1/s05.092

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