Emitter for Discharge of Low-Potential Heat into Space with Anti-Meteoroid Protection
V. V. Mironov, L. I. Volkova, N. N. Volkov, S. S. Khamdamov, A. V. Anikin
State Scientific Centre Keldysh Research Center, Moscow, 125438 Russia
Keywords: refrigerator emitter, heat exchange, coolant, antimeteoroid protection
Abstract
A variant of the refrigerator emitter made of aluminum alloy with anti-meteoroid protection of the tube with a coolant in the form of a bumper, which is a radiating surface, is presented. An approximate method for calculating the stationary thermal state and pressure losses in the device has been developed. A prototype was made and tested. It is shown that the calculated and experimental data are in good agreement. A computational analysis of an efficient (efficiency parameter is equal to 3.27 kg/m2) protected (the probability of non-damage within two years is equal to 0.97) device made of aluminum alloy with a power of 570 kW is performed when the coolant is cooled from 250 to 110oC.
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