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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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太阳能有机朗肯循环发电系统工质及参数优化
, PP. 31-35
Keywords: 太阳能,有机朗肯循环,回热,汽轮机进出口压力比,蒸发压力,蒸发温度,参数优化
Abstract:
针对150~400℃太阳能有机朗肯循环(orc)发电系统,选取r245fa、正戊烷、环己烷、甲苯、十二烷、癸烷、d4和mdm8种工质,根据热力学第一定律,进行不同工况条件下太阳能带回热orc系统的性能计算,并从工质蒸发压力、工质蒸发温度以及汽轮机进出口压力比3方面进行循环性能分析。结果表明:固定蒸发温度时,除r245fa和环己烷外,所有工质带回热的orc效率随蒸发压力提高持续减小;提高工质蒸发温度和压比有利于提高所有工质循环效率;r245fa和正戊烷适用于200℃以下带回热orc,其余工质更适用于200℃以上带回热orc。
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