| 低温太阳能热力发电有机朗肯循环工质的选择 |
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| 引用本文： | 王辉涛,王华. 低温太阳能热力发电有机朗肯循环工质的选择[J]. 动力工程, 2009, 29(3) |
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| 作者姓名： | 王辉涛 王华 |
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| 作者单位： | 昆明理工大学,材料与冶金工程学院,昆明,650032 |
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| 基金项目： | 云南省自然科学基金重点项目 |
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| 摘 要： | 为了筛选出适宜于低温太阳能热力发电有机朗肯循环的工质,根据 PR 状态方程计算和分析了采用 11 种低沸点有机流体工质的低温太阳能发电朗肯循环的热力性能.结果表明:随着工质临界温度的升高,有机透平进口处的最大蒸发压力基本呈下降趋势;在凝结温度与有机透平进口温度一定的情况下,临界温度越高的流体,其循环热效率越高;使用正已烷和正戊烷能获得较高的循环热效率,凝汽器中的凝结压力比较适中,是比较适合用作低温太阳能热力发电有机朗肯循环的工质.
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| 关 键 词： | 低温太阳能热力发电 有机朗肯循环 工质 热效率 临界温度 |
Selection of Working Fluids for Low-temperature Solar Thermal Power Generation Organic Rankine Cycles |
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| WANG Hui-tao,WANG Hua. Selection of Working Fluids for Low-temperature Solar Thermal Power Generation Organic Rankine Cycles[J]. Power Engineering, 2009, 29(3) |
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| Authors: | WANG Hui-tao WANG Hua |
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| Affiliation: | Faculty of Materials and Metallurgical Engineering;Kunming University of Science and Technology;Kunming 650032;China |
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| Abstract: | To select a suitable working fluid for low-temperature solar thermal power generation organic Rankine cycle,the PR equation of state was adopted to calcualte and analyze the thermal performances of organic Rankine cycles driven by low-temperature solar energy using 11 kinds of organic fluids with low boiling points.Results reveal that the maximum evaporation pressure at the inlet of the organic turbine tends to decrease with the increase of the critial temperature of the working fluid.On condition that the ... |
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| Keywords: | low-temperature solar thermal power generation organic Rankine cycle working fluid thermal efficiency critical temperature |
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