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Parametric Optimization of Organic Rankine Cycle with R245fa/R601a as Working Fluid 被引量:1

Parametric Optimization of Organic Rankine Cycle with R245fa/R601a as Working Fluid
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摘要 In order to select the appropriate working fluids and optimize parameters for medium-temperature geothermally-powered organic Rankine cycle(ORC), R245 fa is mixed with R601 a at geothermal water temperature of 110 ℃. Based on thermodynamics, the characteristics of mixture and its influence on the performance of ORC under different evaporating temperatures and composition proportions are analyzed. Results show that the zeotropic mixture R245fa/R601a(0.4/0.6) has the highest performance. When the evaporating temperature reaches 67 ℃, the outlet temperature of geothermal water is 61 ℃, the net power output is the highest and the thermal efficiency is about 9%. In order to select the appropriate working fluids and optimize parameters for medium-temperature geothermally-powered organic Rankine cycle (ORC), R245fa is mixed with R601 a at geothermal water temperature of 110℃. Based on thermodynamics, the characteristics of mixture and its influence on the performance of ORC under different evaporating temperatures and composition proportions are analyzed. Results show that the zeotropic mixture R245fa/R601a (0.4/0.6) has the highest performance. When the evaporating temperature reaches 67 ℃, the outlet temperature of geothermal water is 61℃, the net power output is the highest and the thermal efficiency is about 9%.
出处 《Transactions of Tianjin University》 EI CAS 2015年第1期69-75,共7页 天津大学学报(英文版)
基金 Supported by the National High Technology Research and Development Program of China("863" Program,No.2012AA053001)
关键词 medium temperature geothermal source organic Rankine cycle zeotropic mixture optimization parameter system performance 朗肯循环 参数优化 非共沸混合物 工质 蒸发温度 工作流体 热水温度 出口温度
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