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Oxygen-enriched air for MHD power plantsCryogenic air-separation process cycle variations and compression schemes are examined. They are designed to minimize net system power required to supply pressurized, oxygen-enriched air to the combustor of an MHD power plant with a coal input of 2000 MWt. Power requirements and capital costs for oxygen production and enriched air compression for enrichment levels from 13 to 50% are determined. The results are presented as curves from which total compression power requirements can be estimated for any desired enrichment level at any delivery pressure. It is found that oxygen enrichment and recuperative heating of MHD combustor air to 1400 F yields near-term power plant efficiencies in excess of 45%. A minimum power compression system requires 167 MW to supply 330 lb of oxygen per second and costs roughly 100 million dollars. Preliminary studies show MHD/steam power plants to be competitive with plants using high-temperature air preheaters burning gas.
Document ID
Document Type
Conference Proceedings
Ebeling, R. W., Jr.
(Gilbert (Glen A.) and Associates, Inc. Reading, PA, United States)
Cutting, J. C.
(Gilbert Associates, Inc. Reading, Pa., United States)
Burkhart, J. A.
(NASA Lewis Research Center Cleveland, Ohio, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1979
Subject Category
Engineering (General)
Meeting Information
Symposium on the Engineering Aspects of Magnetohydrodynamics(Butte, MT)
Accession Number
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