Pressure-Driven Ranque-Hilsch Temperature Separation in Liquids

[+] Author and Article Information
R. T. Balmer

Department of Mechanical Engineering, University of Wisconsin—Milwaukee, Milwaukee, Wis. 53201

J. Fluids Eng 110(2), 161-164 (Jun 01, 1988) (4 pages) doi:10.1115/1.3243529 History: Received August 17, 1987; Online October 26, 2009


The temperature separation phenomenon of the Ranque-Hilsch (vortex) tube is not limited to compressible gases and vapors. Theoretical analysis using the Second Law of Thermodynamics establishes that a net entropy producing temperature separation effect is possible when incompressible liquids are used in these devices. Experiments with liquid water in a commercial counterflow Ranque-Hilsch tube designed for use with air verify that significant temperature separation does in fact occur when a sufficiently high inlet pressure is used.

Copyright © 1988 by ASME
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