Two alternate mechamcal pump concepts have been =dent)fled for the transfer of superflu~d hehum m space Both pumps prov)de flow at sufficient head and have operating charactenstics suitable for the Space Infrared Telescope Famhty (SlRTF) refill mission One pump operates at a relat)vely low speed and
Liquid helium pumps for in-orbit transfer
โ Scribed by P. Kittel
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 627 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0011-2275
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โฆ Synopsis
Both mechanical and fountain-effect pumps are being considered for use in the in-orbit resupply of superfluid helium to a number of scientific instrument systems. This Paper presents a review of the operating characteristics of these pumps. Particular emphasis will be given to the different methods of evaluating the efficiency of these pumps and their effectiveness in a transfer system.
๐ SIMILAR VOLUMES
The Space Infrared Telescope Facility(SIRTF) will be a large infrared observatory cooled to 2 K by 4000 dm 3 of superfluid helium, and expected to have a lifetime of ~2 years on orbit. Concepts are presented for replenishing the cryogen on orbit, and for designing the airborne support equipment requ