Thermodynamics study of flash-binary cycle in geothermal power plant

[摘要] This paper was conducted to evaluate the performance of a flash-binary cycle if applied to geothermal power plant (PLTP), where the source of heat came from the residual brine from the separator which was generally re-injected into wells. In the study of flash-binary cycle, there are four types of organic working fluids considered for the binary cycle, namely i-pentane, n-pentane, i-butane, and n-butane. Optimization process was carried out on the performance of plant systems. This paper also discussed the limitation factor to get maximum net power, like: flash pressure, evaporator pressure, Delta pinch temperature, scaling formation, and thermal design in heat exchanger (preheater, evaporator, and air cooled condenser). Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.

[发布日期] 2011-12-01

[关键词] Flash-binary cycle;Optimization;Heat exchanger;Organic working fluid