NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
A steerable radiator for spacecraft applicationFuture large space structures such as the Space Station will have high dissipation and long life requirements which dictate the requirements for steerable radiators. Several rotary coupling concepts were considered to accomplish heat transport across the steerable radiator system's rotating interface. Rotary fluid couplings were chosen over rotary contact couplings or flexible lines because of low temperature gradients and operational flexibility. A rotary fluid coupling has been designed for use on initial operating capability (IOC) and growth Space Station. Its internal seals have been demonstrated to a 10 year life with minimal (0.055 lbm NH3/year) leakage between internal passages. Materials compatibility tests have been conducted to demonstrate compatibility with ammonia. A seal leakage management system has been designed to: (1) monitor pressures between the internal seals, (2) remove leakage, and (3) store the leakage fluid in a reservoir.
Document ID
19860064859
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Heizer, B. L.
(Boeing Aerospace Co. Seattle, WA, United States)
Goo, S. D.
(Boeing Aerospace Co. Seattle, WA, United States)
Rhodes, G. D.
(Boeing Aerospace Co. Seattle, WA, United States)
Thoreson, D. W.
(Boeing Aerospace Co. Seattle, WA, United States)
Parish, R. C.
(NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 12, 2013
Publication Date
June 1, 1986
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 86-1298
Accession Number
86A49597
Funding Number(s)
CONTRACT_GRANT: NAS9-17310
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available