Temperature rise in superfluid helium pumps
Technical Report
·
OSTI ID:6689668
The temperature rise of a fountain effect pump (FEP) and of a centrifugal pump (CP) are compared. Calculations and estimates presented here show that under the operating conditions expected during the resupply of superfluid helium in space, a centrifugal pump will produce a smaller temperature rise than will a fountain effect pump. The temperature rise for the FEP is calculated assuming an ideal pump, while the temperature rise of the CP is estimated from the measured performance of a prototype pump. As a result of this smaller temperature rise and of the different operating characteristics of the two types of pumps, transfers will be more effective using a centrifugal pump.
- Research Organization:
- National Aeronautics and Space Administration, Moffett Field, CA (USA). Ames Research Center
- OSTI ID:
- 6689668
- Report Number(s):
- N-88-27507; NASA-TM-100997; A-88172; NAS-1.15:100997
- Country of Publication:
- United States
- Language:
- English
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