Comparison of Methods for Calculating Radiative Heat Transfer

Schock, Alfred ; Abbate, M J

Republic Aviation Division, Fairchild Hiller Corporation

关键词: NESDPS Office of Nuclear Energy Space and Defense Power Systems;    Radiative Heat Transfer;   

DOI  :  10.2172/1033384
RP-ID  :  None
PID  :  OSTI ID: 1033384
Others  :  Other: Orbital ID: 9187
Others  :  Call Number: 10-01

美国|英语

来源: SciTech Connect

【 摘 要 】

Various approximations for calculating radioactive heat transfer between parallel surfaces are evaluated. This is done by applying the approximations based on total emissivities to a special case of known spectral emissivities, for which exact heat transfer calculations are possible. Comparison of results indicates that the best approximation is obtained by basing the emissivity of the receiving surface primarily on the temperature of the emitter. A specific model is shown to give excellent agreement over a very wide range of values.