NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Cavitation characteristics of a small centrifugal pump in He I and He IIThe cavitation characteristics of a small preinduced centrifugal pump operating in He I and He II over the temperature range 1.8-4.2 K are presented. The pump and close-coupled induction motor operate immersed in liquid helium. A six-blade propeller inducer and a three-blade screw inducer were both tested. With this pump configuration using either inducer, there is a tremendous difference between the cavitation characteristics of He I and He II. The net positive suction head requirements for this pump with the screw inducer could not be determined for He I, but it is less than -100 mm and, depending on flow rate, ranges between 35 and 165 mm for He II.
Document ID
19890053938
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ludtke, P. R.
(National Bureau of Standards Boulder, CO, United States)
Daney, D. E.
(NIST, Center for Chemical Engineering Science, Boulder CO, United States)
Date Acquired
August 14, 2013
Publication Date
February 1, 1988
Publication Information
Publication: Cryogenics
Volume: 28
ISSN: 0011-2275
Subject Category
Engineering (General)
Accession Number
89A41309
Funding Number(s)
CONTRACT_GRANT: NASA ORDER A-21059-C
Distribution Limits
Public
Copyright
Other

Available Downloads

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