Performance testing of a two-phase interface heat exchangerThis paper describes the design and performance testing of a heat exchanger which interfaces separate two-phase ammonia thermal loops. The basic design involves a tube-in-tube concept, with boiling occurring in the inner tube and condensation in the outer tube. Eight such tubes are arranged in parallel. Testing has demonstrated that up to 8.2 kW of heat may be transferred across the heat exchanger when the saturation temperature difference between the systems is 5 C. Performance of the heat exchanger is affected primarily by the mass flow rate of ammonia in the liquid supply loop.
Document ID
19900040376
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mccabe, M. E., Jr. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Swanson, T. D. (NASA Goddard Space Flight Center Greenbelt, MD, United States)