Selection of a Working Fluid for an Organic Rankine Cycle Coupled to a Salt-Gradient Solar Pond by Direct-Contact Heat Exchange

[+] Author and Article Information
J. D. Wright

Solar Energy Research Institute, Golden, Colo. 80439

J. Sol. Energy Eng 104(4), 286-292 (Nov 01, 1982) (7 pages) doi:10.1115/1.3266319 History: Received July 27, 1981; Online November 11, 2009


An analysis was conducted of power production by an organic Rankine cycle engine coupled to a solar pond with direct-contact heat exchange. Use of a direct-contact boiler reduced the projected plant cost by 25 percent. The choice of a working fluid affects plant efficiency, turbine size, and working fluid losses. Pentane was shown to be the working fluid best suited to this application.

Copyright © 1982 by ASME
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