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太阳能沸石储热技术的实验研究

Keywords: 沸石,太阳能,储热

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Abstract:

为了探索利用太阳能进行储热和供暖的可能性,建立了一套开式循环太阳能储热装置,开展太阳能热利用的实验研究.实验采用天然沸石作为吸附剂,水作为吸附质,沸石床集储热和供热于一体.为了尽可能接近实际应用情况,实验过程全部在冬天寒冷环境下完成.在对冬天太阳辐射能观测的基础上.详细测量了天然沸石床的吸附/脱附的动态特性,对冬天正常日照条件下沸石储热床的吸附/脱附过程的可利用热能进行计算;进而对整个太阳能储热装置的热效率进行分析,为太阳能用于供暖提供基本依据.根据计算,装置的吸附热约为152.5kJ,脱附热为2126kJ,太阳能储热装置的总的热利用效率超过30%.

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