Performance Tests of a Reciprocating Liquid Helium Pump Used in Forced Convection Cooling

  • T. W. Schuck
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 21)

Abstract

A review of previous attempts to pump helium as a liquid has recently been summarized by McConnell [1] in which the majority of the pumps tested were centrifugal and intended for “circulation” service, relatively low heads, and moderate flows. Three positive displacement pumps are described, which have been tested in liquid helium service, two of which were reciprocating in nature and utilized a superconducting solenoid submerged in the bath, for low-head, low-flow— 6.3cm3/sec (0.1 gpm)—applications. A reciprocating pump which employed a room-temperature crank arrangement was used to pump nearly 126cm3/sec (2 gpm) of supercritical helium at low differential pressure. None of these units seems to be too well suited for liquid helium transfer in those applications requiring forced convection cooling with subcooled liquid or in applications involving vessel-to-vessel transfers of liquid.

Keywords

Entropy Convection Mercury Enthalpy Helium 

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References

  1. 1.
    P. McConnell, “Liquid Helium Pumps,” NBS Interim Rept. 73–316 (1973).Google Scholar
  2. 2.
    R. D. McCarty, “Thermophysical Properties of Helium 4 from 2 to 1500K with Pressures to 1000 Atmospheres,” NBS Tech. Note 631 (1972).Google Scholar

Copyright information

© Springer Science+Business Media New York 1960

Authors and Affiliations

  • T. W. Schuck
    • 1
  1. 1.Gardner CryogenicsBethlehemUSA

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