Two-phase active thermal control systems for spacecrafts

Ing Youn Chen, M. C. Chyu

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


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 (TBS), Lockheed Ground Test Unit (GTU) 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.

Original languageEnglish
Pages (from-to)1488-1493
Number of pages6
JournalProceedings of the Intersociety Energy Conversion Engineering Conference
StatePublished - 1996
EventProceedings of the 1996 31st Intersociety Energy Conversion Engineering Conference. Part 1 (of 4) - Washington, DC, USA
Duration: Aug 11 1996Aug 16 1996


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