FIELD: transport.
SUBSTANCE: invention relates to thermal control systems of, mainly, long-term operation telecommunication satellites. TCS circuit with two-phase heat carrier (ammonia) comprises fluid pump, manifolds of metre and radiator panels and accumulator. Accumulator case has zones of vapours of said heat carrier and heat carrier liquid phase. The latter zone is connected with circuit directed to fluid pump intake. Said circuit is connected via connection pipe via controlled throttle with accumulator case. Said throttle serves to control heat carrier pressure and temperature in accumulator case. About 10% of liquid hear carrier flow is fed therefrom into the case central zone. To separate liquid phase form undissolved gas bubbles (if any) at the outlet of said pipe shaped to half-loop of somewhat radius. Cross-section of said section features rectangular shape with larger side located in the plane perpendicular to heat carrier flow.
EFFECT: reduced heat carrier losses, hence smaller onboard store of heat carrier.
2 dwg
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Authors
Dates
2014-04-20—Published
2012-10-02—Filed