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Two-phase active thermal control systems for spacecrafts

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2 Author(s)
Ing Youn Chen ; Dept. of Mech. Eng., Nat. Yunlin Inst. of Technol., Taiwan ; M. -C. Chyu

The lower mass flow rate for a two-phase system compared with that of a single-phase system results in benefits in terms of reduced pumping power, system size and weight. The design and testing of two-phase fluid thermal loops for future large spacecraft has been conducted at NASA Johnson Space Center since 1982. This report presents a review and summary of the two-phase thermal system test results of Grumman Thermal Bus System, Lockheed Ground Test Unit and Boeing/Sundstrand Ground Test Article (GTA) Space Station prototypes, which were tested from 1987 to 1993. The thermal-hydraulic performances of the two-phase thermal buses are briefly described and comparison of three bus test results is made. The advantages of the selected thermal bus (GTA) are described

Published in:

Energy Conversion Engineering Conference, 1996. IECEC 96., Proceedings of the 31st Intersociety  (Volume:2 )

Date of Conference:

11-16 Aug 1996