闭式海洋温差能发电系统的工质研究
STUDY OF WORKING FLUID FOR CLOSED OTEC SYSTEM
查看参考文献15篇
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文摘
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在不同冷凝温度条件下,以氨作为比较对象,选取R245ca、R245fa、R236ea、R236fa、正丁烷、异丁烷、正戊烷和异戊烷8种干有机工质,基于热力学第一定律和第二定律对其热力循环性能进行计算分析,并对工质的净功、热效率、气耗率和(左火右用)损失等进行比较。结果表明:在所选有机工质中,正戊烷具有最高的热效率和(左火右用)效率,最大的净功及最小的气耗率,且产生的系统(左火右用)损失较小;从净功方面比较,氨的做功能力远强于有机工质。 |
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其他语种文摘
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The properties of working fluids have significant effect on performance of closed ocean thermal energy conversion (OTEC) Rankine cycle. With ammonia as comparative object, taking R245ca, R245fa, R236ea, R236fa, butane,isobutene,pentane and isopentane as the dry organic working fluids,the performance of OTEC Rankine cycle system was studied based on the first and the second law of thermodynamics. The net work,thermal efficiency,gas consumption rate and exergy efficiency were also calculated and compared,respectively. The results show that among the selected organic working fluids,pentane creates the highest thermal efficiency and exergy efficiency,and produces the maximum net work with the lowest gas consumption and relatively low total exergy loss; secondly,compared with the organic working fluids,the work capacity of ammonia is far stronger than that of organic working fluids from net work viewpoint. |
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来源
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太阳能学报
,2016,37(4):1064-1070 【核心库】
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关键词
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海洋温差能发电
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朗肯循环
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有机工质
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热效率
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净功
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(左火右用)损失
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地址
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中国科学院广州能源研究所, 中国科学院可再生能源与天然气水合物重点实验室, 广州, 510640
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0254-0096 |
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学科
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电工技术 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:5688853
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