The authors have described a laboratory bench with a regenerative air heater and an automated system for control and measurement of the parameters of air flows and a packing. The bench is intended for investigating the heat transfer of a packing in the form of a stack of parallel plates under nonstationary conditions. A procedure for measuring the temperature of the flows of cold and hot heat-transfer agents with account taken of the inertia of thermocouples has been presented. A mathematical model of thermal processes in the flows of heat-transfer agents and the packing in cyclic heat exchange with the cold and hot heat-transfer agents has been developed. Results of computations of the changes in the temperatures of the heat-transfer agents and the plate with time and along the plate have been presented. Coefficients of heat transfer of the plate′s lateral surfaces have been calculated by the existing procedure and with the developed mathematical model. The calculation results have been generalized by the similarity equations. Coefficients of heat transfer of the plate′s end surfaces have been assessed.
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 94, No. 2, pp. 301–312, March–April, 2021.
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Kirsanov, Y.A., Makarushkin, D.V., Kirsanov, A.Y. et al. Heat Transfer of a Stack of Low-Thermal-Conductivity Plates in Cyclic Heat Exchange with Cold and Hot Media. J Eng Phys Thermophy 94, 286–297 (2021). https://doi.org/10.1007/s10891-021-02301-0
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DOI: https://doi.org/10.1007/s10891-021-02301-0