A thermal energy storage process for large scale electric applications
A thermal energy storage process for large scale electric applications
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DOI：
10.1016/j.applthermaleng.2009.10.002
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发表时间：
2010-04
影响因子：
6.4
通讯作者：
Tristan Desrues;J. Ruer;P. Marty;J. Fourmigue
中科院分区：
文献类型：
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作者：
Tristan Desrues;J. Ruer;P. Marty;J. Fourmigue
提出了一种用于大规模电力应用的新型热能存储过程，基于高温热泵循环，将电能转化为热能并将其存储在两个大型蓄热器中，然后是热机循环，将存储的热能转化回电能。描述了存储原理，分析了其热力循环，得出了存储系统的理论效率。开发了一个数值模型，结果表明该过程的可行性，即使参数不是最优的。最后，确定了提高过程性能的关键因素。
A new type of thermal energy storage process for large scale electric applications is presented, based on a high temperature heat pump cycle which transforms electrical energy into thermal energy and stores it inside two large regenerators, followed by a thermal engine cycle which transforms the stored thermal energy back into electrical energy. The storage principle is described, and its thermodynamic cycle is analyzed, leading to the theoretical efficiency of the storage system. A numerical model is developed, and the results show the feasibility of the process, even with sub-optimal parameters. Finally, key factors for improving the process performances are identified.