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Record Details

Record 88 of 12841
A bi-directional two-phase/two-phase heat exchanger
Author and Affiliation:
Ku, Jentung(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Ottenstein, Laura(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Abstract: This paper describes the design and test of a heat exchanger that transfers heat from one two-phase thermal loop to another with very small drops in temperature and pressure. The heat exchanger condenses the vapor in one loop while evaporating the liquid in the other without mixing of the condensing and evaporating fluids. The heat exchanger is bidirectional in that it can transfer heat in reverse, condensing on the normally evaporating side and vice versa. It is fully compatible with capillary pumped loops and mechanically pumped loops. Test results verified that performance of the heat exchanger met the design requirements. It demonstrated a heat transfer rate of 6800 watts in the normal mode of operation and 1000 watts in the reverse mode with temperature drops of less than 5 C between two thermal loops.
Publication Date: Jul 01, 1993
Document ID:
19930062590
(Acquired Dec 28, 1995)
Accession Number: 93A46587
Subject Category: FLUID MECHANICS AND HEAT TRANSFER
Report/Patent Number: AIAA PAPER 93-2852
Document Type: Preprint
Publication Information: p. 13 p.
Publisher Information: United States
Meeting Information: 28th AIAA, Thermophysics Conference; July 6-9, 1993; Orlando, FL; United States
Meeting Sponsor: AIAA
Financial Sponsor: NASA; United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 13p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: HEAT TRANSFER; TEMPERATURE CONTROL; TEMPERATURE PROFILES; TUBE HEAT EXCHANGERS; CONDENSATION; EVAPORATION; HEAT OF VAPORIZATION; PERFORMANCE TESTS
Imprint And Other Notes: AIAA, Thermophysics Conference, 28th, Orlando, FL, July 6-9, 1993
Availability Source: Other Sources
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