Accession Number : AD0766500

Title :   Closed Cycle MHD for Central Station Power with Fossil or Nuclear Fuels.

Descriptive Note : Technical information series rept.,

Corporate Author : GENERAL ELECTRIC CO PHILADELPHIA PA SPACE DIV

Personal Author(s) : Zauderer,Bert ; Marston,Charles H. ; Cook,Charles S.

Report Date : AUG 1973

Pagination or Media Count : 47

Abstract : A closed cycle MHD generator using a noble gas with alkali metal vapor as the working fluid, when used as a topping unit for a conventional steam plant, can yield cycle efficiencies in excess of 60% at peak stagnation temperature of 3000F. While high enough for substantial gains in thermodynamic efficiency, this temperature is relatively low for an electrically conducting gas and conductivity is achieved by decoupling electron temperature from gas temperature. A ceramic regenerative heat exchanger supplies thermal energy to the working fluid. The latter can be any clean fossil fuel, preferably low BTU (about 150 BTU/SCF) coal gas. With multi-stage combustion, pulverized coal is also a possible fuel. On a long range basis, closed cycle MHD is ideally suited for high temperature gas cooled fission reactors and probably also to fusion reactors. The closed cycle MHD generator is adaptable to the Brayton cycle, the regenerative Brayton cycle and eventually the Rankine cycle. (Author)

Descriptors :   (*MAGNETOHYDRODYNAMIC GENERATORS, ENERGY CONVERSION), (*ELECTRIC POWER PRODUCTION, MAGNETOHYDRODYNAMIC GENERATORS), ALKALI METAL COMPOUNDS, VAPORS, REACTOR FUELS, THERMAL PROPERTIES

Subject Categories : Electric Power Production and Distribution
      Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE