FIRST IN THE WORLD OF FLIGHT EXPERIMENT RESULT WITH LOOP HEAT PIPES AND PERSPECTIVE OF DEVELOPMENT

摘要

In the paper the tests result of a two-phase loop TPL with the capillary pump (CP) in conditions of absence of gravitation are indicated. To test were subjected 3 TPL onboard space vehicles (SV) Horizon per 1980-1981. The tests have shown large sensitivity to a priming doze by a coolant, than in conditions of a gravitation. Depending on magnitude of a coolant priming doze and conditions of start three stable operational modes TPL are detected which have thermophysical parameters. The necessity of the guaranteed impregnation of a capillary structure CP and capillary equalizer before start TPL is confirmed. For start three in parallel joint CP the minimum thermal potency has made approximately 40W. TPL with a capillary structure from a titanum alloy, material of pipelines from a stainless steel on freon-11 in general has studied without a noticeable modification thermophysical of parameters 1 year 10 months. The further gains on improving serviceability CP should be directed on increase of reliability of the guaranteed start and maintainings of a constant of temperature cooled of the payment for want of modification of a transmitted potency.