Published August 26, 2022 | Version v1

ACCOUNT FOR THE INFLUENCE OF THE ECCENTRICITY OF CYLINDRICAL INSTALLATIONS FOR MEASURING THERMAL CONDUCTIVITY OF SUBSTANCES

Authors/Creators

  • 1. doctor of technical sciences, professor of «Physics» department of Azerbaijan State University of Oil and Industry (Baku, Azerbaijan)

Description

Abstract

In cylindrical measuring devices for determining thermal conductivity, the heat flow and the temperature difference between coaxial endless cylindrical surfaces are considered. The technique for calculating the thermal conductivity for this case has long been worked out. In this work, the influence of the eccentricity of the working cylindrical surfaces of devices is theoretically determined when calculating the thermal conductivity. Approximate equations are found for calculating the thermal conductivity of liquids and gases.

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References

  • 1. Назиев Д.Я. Теплопроводность углеводородов и методы ее измерения. Монография. Баку, Азербайджан. 2001. - 357 с.
  • 2. Platunov E.S. Instruments for measuring thermal conductivity, thermal diffusivity, and specific heat under monotonic heating. Compendium of thermophysical properties measurement methods. Vol. 2. Recommended measurement techniques and practices. Plenum Press New York and London. 1992. – 643 p.
  • 3. Litovsky E., Issoupov V., Horodetsky S., Kleiman J. Express methods for determination of thermophysical properties of different types of materials within a temperature range of -1500C to +18000C. Proceedings of 31-th Int. Thermal conductivity conference and 19-th Thermal Expansion Symposium. Canada. 2011. - 325p.
  • 4. Цветков Ф. Ф., Григорьев Б. А. Тепломассообмен : учебник для вузов. М. : Издательский дом МЭИ, 2011. - 562 с.