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RESEARCH PAPERS

Electrofluid Dynamic Energy Conversion Present Status and Research Areas

[+] Author and Article Information
Maurice Lawson, Hans Von Ohain

Aerospace Research Laboratories, Office of Aerospace Research, Wright-Patterson Air Force Base, Dayton, Ohio

J. Eng. Power 93(2), 201-220 (Apr 01, 1971) (20 pages) doi:10.1115/1.3445552 History: Received July 14, 1970; Online July 14, 2010

Abstract

This paper presents in depth the major basic performance characteristics of electrofluid dynamic (EFD) energy conversion processes, which are shown to be complementary to magnetofluid dynamic processes. With a view toward making possible effective thermal-electric energy conversion without moving parts, the potential compatibility of incorporating low pressure ratio EFD processes into high pressure ratio thermodynamic cycles is shown. Investigations of scaling, similarity, performance characteristics, and the effects of physical properties of working media containing electric charges of one polarity are used as a basis to determine the major problems and corresponding research areas in EFD energy conversion. In general these are: Generation of Charged Colloids; Electrode and Conversion Duct Geometry; and Fluid Dynamic Energy Transfer Phenomena in Multicomponent, Multiphase Flows. Also given are typical configurations of EFD energy converters, and a look at potential applications, especially those associated with encapsulated, long-duration power supply for operations in space, under the ocean, or at remote unattended sites.

Copyright © 1971 by ASME
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