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太阳能辅助小温差热发电系统的初步研究

, PP. 35-38

Keywords: 温差热发电,太阳能,汽轮机,循环工质

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Abstract:

太阳能辅助小温差热发电系统以工业废热作为第一级热源、太阳能集热器作为第二级热源,循环工质在热源中蒸发并过热后,在汽轮机中膨胀做功,从而驱动电机发电.分析了该系统的工作原理和循环过程,并在理论分析的基础上,进行了系统的热力计算.理论计算结果表明在循环工质为R717,循环工质蒸发侧相变温度为60℃,冷凝侧相变温度为27℃的条件下,此太阳能辅助小温差热发电系统的总的发电效率可达7.15%,表明该小温差发电装置具有较好的应用前景.

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