微型压缩空气储能系统释能过程分析

Analysis of Energy Release Process of Micro-Compressed Air Energy Storage Systems

本文以活塞式单阀膨胀机作为微型压缩空气储能系统(CAES)的释能单元,设计得到微型CAES及单阀膨胀机的基本结构与运行参数。并对该储能系统进行理论分析与仿真研究,研究不同释能方案以及不同储气室保温条件对微型CAES系统释能特性的影响。计算结果表明,选用合理的释能方案以及散热良好的储气罐,可以使微型CAES系统获得最佳的释能效率,微型CAES系统的储能效率最高可达70%。

This paper took the Single Valve Reciprocating Expander(SVRE) as the energy release unit of Micro-Compressed Air Energy Storage(CAES) system.It was designed the fundamental structure and operating parameters of the Micro-CAES system and the SVRE.The energy storage system was theoretically analyzed and numerically simulated.The impact of different energy release models and reservoir thermal insulation conditions on the energy release characteristic of the Micro-CAES system was studied.The calculation results showed that proper energy release model and reservoir with well heat dissipation could ensure the optimal energy release efficiency of Micro-CAES system.An energy storage efficiency of 70%was achieved under optimal operating condition of the Micro-CAES system.