Performance of a small centrifugal pump in He I and He IIThe performance characteristics of a small centrifugal pump in He I and He II are determined over the temperature range of 1.6 to 4.2 K. The single-stage pump is powered by a close-coupled cryogenic induction motor. In the absence of cavitation, pump performance (head and capacity) was found to be identical for He I and He II. Developed heads up to 16 m and capacities of up to 900 liters/hr are obtained at 7000 rpm. A three-blade screw inducer was shown to require much less suction head than a six-blade propeller inducer.
Document ID
19880065969
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Ludtke, P. R. (National Bureau of Standards Boulder, CO, United States)
Daney, D. E. (National Bureau of Standards Boulder, CO, United States)
Steward, W. G. (NBS, Chemical Engineering Science Div., Boulder CO, United States)