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.
|Number of pages||6|
|Journal||Proceedings of the Intersociety Energy Conversion Engineering Conference|
|State||Published - 1996|
|Event||Proceedings of the 1996 31st Intersociety Energy Conversion Engineering Conference. Part 1 (of 4) - Washington, DC, USA|
Duration: Aug 11 1996 → Aug 16 1996