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Thermodiode System Application for the Achievement of Low Temperature for Optic Sensors at External Disturbances
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English
Abstract
An approach to the creation of passive radiative cooling system ensuring temperature levels less than 220K for the optical sensor of scientific space equipment elements is considered. The system is intended for the arbitrary orientation-in-space function under solar radiation. Theoretical analysis of the application field of this system, using heat pipes with constant and variable thermal resistance in a range of solar constant variation (500…2700)W/m2 is given. Experimental results on system models, in which two engaged in parallel thermodiodes with freon-22 and ammonium were used, showed the possibility to attain device temperature levels less than 220 K at the solar constant magnitude 1400 W/m2 and device heat release under (1…2) W.
Authors
- V. Baturkin - Kiev Polytechnic Institute
- N. Grechina - Kiev Polytechnic Institute
- S. Zhuk - Kiev Polytechnic Institute
- V. Savina - Kiev Polytechnic Institute
- K. Shkoda - Kiev Polytechnic Institute
- V. Kostenko
- F. Lura - Institut fur Weltraumsensoric/DLR
- B. Biering - Institut fur Weltraumsensoric/DLR
- B. Lehmann
Citation
Baturkin, V., Grechina, N., Zhuk, S., Savina, V. et al., "Thermodiode System Application for the Achievement of Low Temperature for Optic Sensors at External Disturbances," SAE Technical Paper 921209, 1992, https://doi.org/10.4271/921209.Also In
References
- Semena M.G. Kostenko V.I. Baturkin V.M. and others Working out of the cryogenic cooling system on the base of heat pipes for VEGA television camera Preprint of Space Research Institute of USSR AS 1986 35
- Groll M. Supper W. Savage C Shutdown Characteristics of an AxialGroove Liquid-Trap Heat Pipe Thermal Diode J.Spacecraft 19 1982 173 178
- Baturkin V.M. Gretchina N. K. Investigation of thermocontrol behaviour of the cooling system on the base of heat pipes with thermodiode properties Ukraine Scientifical Information Institute 31 03 1989 Kiev 23