Chapter 8

Binary Cycle Power Plants


Binary cycle geothermal power plants are the closest in thermodynamic principle to conventional fossil or nuclear plants in that the working fluid undergoes an actual closed cycle. The working fluid, chosen for its appropriate thermodynamic properties, receives heat from the geofluid, evaporates, expands through a prime mover, condenses, and is returned to the evaporator by means of a feed pump.


Binary cycles; dual-pressure cycle; dual-fluid cycle; Kalina cycles; subcritical cycle; supercritical cycle; thermodynamics; working fluids; process analysis; utilization efficiency; plant equipment; environmental impact; safety equipment; pumps

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