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RESEARCH PAPERS

An Axial-Flow Porous Plug Apparatus

[+] Author and Article Information
R. C. King

New York University, New York, N. Y.

J. H. Potter

Stevens Institute of Technology, Hoboken, N. J.

J. Eng. Ind 84(1), 180-188 (Feb 01, 1962) (9 pages) doi:10.1115/1.3667414 History: Received March 10, 1961; Online December 09, 2011

Abstract

The design of an apparatus for determination of Joule-Thomson coefficients is presented. An axial flow porous plug is utilized and the downstream flow is so arranged that one concentric flow path serves as a heat shield for the other. This guard-ring principle, together with virtual elimination of radiation and convection heat transfer, reduces the heat leakage that has been associated with previous axial-flow designs. A prototype was constructed and tested with gaseous nitrogen. The Joule-Thomson coefficients obtained agree, in the range 2-20 atmosphere and 50-150 C, within one per cent with published values.

Copyright © 1962 by ASME
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