Methods for creating the self-regulating mechanisms of passive systems for ensuring thermal regime of devices for space application

Details Methods for creating the self-regulating mechanisms of passive systems for ensuring thermal regime of devices for space application Methods for creating the self-regulating mechanisms of passive systems for ensuring thermal regime of devices for space application

Mar 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007th%26ae..14...81s&link_type=abstract

Thermophysics and Aeromechanics, Volume 14, Issue 1, pp.81-91

Physics

Scientific paper

The passive systems for ensuring the thermal regime of space objects, which are in current use, can preserve the temperature at the same level only under a certain orientation of spacecraft and at a constant heat release of the equipment. At a variable orientation of the space object, its temperature may vary due to a possible illumination of the radiator-emitter of the system for ensuring the thermal regime by the solar or planet radiation. At a variable heat release the object temperature changes due to an off-design regime of the radiator operation. To compensate for the given effects the active elements are used — the heaters and coolers. This reduces the reliability of thermal regulation system and, consequently, the reliability of the entire spacecraft. The solutions are proposed, which create in the absence of active elements in the thermal regulation system the internal mechanisms enabling a compensation of the variability of heat fluxes both at a reorientation of the spacecraft and at a variation of the internal heat release.

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