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Record 1 of 1286
A high power spacecraft thermal management system
Author and Affiliation:
Ku, J.(OAO Corp., Greenbelt, MD, United States)
Kroliczek, E. J.(OAO Corp., Greenbelt, MD, United States)
Mccabe, M. E., Jr.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Benner, S. M.(TS Infosystems, Inc., Lanham, MD, United States)
Abstract: This paper describes the design and test results of an ammonia hybrid capillary pumped loop thermal control system. As a hytbrid, the system can operate as either a passive, capillary pumped loop, or, as a mechanically pumped system. The system is comprised of an evaporator section, a condenser section, 10 meters of liquid and vapor transport lines, a mechanical pump, and a reservoir. In the evaporator section, four capillary pumps are each integrated into three cold plates. The mechanical pump is installed in the liquid line and is in series with the capillary pumps. Testing has demonstrated that in the capillary pumped mode, the HPSTM can acquire and transport a total heat load of between 120 W and 24 kW, with a maximum heat flux density of 4.3 W/sq cm in the evaporator section. In the mechanically pumped configuration, a heat acquisition potential of 50 kW (9 W/sq cm heat flux density) has been demonstrated. The hybrid system still retains the proven capillary capabilities of temperature control, heat load sharing and fluid flow control between evaporator plates, rapid power cycling, and pressure priming recovery of deprimed evaporators.
Publication Date: Jun 01, 1988
Document ID:
19880056527
(Acquired Nov 28, 1995)
Accession Number: 88A43754
Subject Category: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
Report/Patent Number: AIAA PAPER 88-2702
Document Type: Preprint
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: OAO Corp.; Greenbelt, MD, United States
NASA Goddard Space Flight Center; Greenbelt, MD, United States
TS Infosystems; Lanham, MD, United States
Description: 12p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: SPACE STATION POWER SUPPLIES; SPACECRAFT DESIGN; TEMPERATURE CONTROL; ACTIVE CONTROL; CAPILLARY FLOW; CONTROL SYSTEMS DESIGN; ENVIRONMENTAL CONTROL; SPACECRAFT ENVIRONMENTS
Imprint And Other Notes: AIAA, Thermophysics, Plasmadynamics and Lasers Conference, San Antonio, TX, June 27-29, 1988. 12 p.
Availability Source: Other Sources
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