Multilayer Insulation (MLI) is used for thermal control of spacecraft (S/C). Built-in discontinuities degrade the performance of MLI blankets. In this paper the blanket properties are considered by defining an effective emissivity for the MLI covered S/C surface. The influence of covered area and the influence of number of layers on the effective emissivity is determined by experiments with simple MLI covered test bodies in a space simulation chamber. An equation for the calculation of the effective emissivity of Soviet EVTI-type MLI is presented. The tests are combined with investigations of thermal similarity.
Effective Emissivity Determination of Multilayer Insulation for Practical Spacecraft Application
Sae Technical Papers
International Conference On Environmental Systems ; 1997
1997-07-01
Aufsatz (Konferenz)
Englisch
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