Chen Xiaotao, Xue Xiaodai, Si Yang, Liu Chengkui, Chen Laijun, Guo Yongqing, Mei Shengwei
Qinghai Key Lab of Efficient Utilization of Clean Energy (New Energy Photovoltaic Industry Research Center), Qinghai University, Xining 810016, China.
China State Key Laboratory of Power System and Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China.
Entropy (Basel). 2020 Jul 13;22(7):764. doi: 10.3390/e22070764.
The comprehensive utilization technology of combined cooling, heating and power (CCHP) systems is the leading edge of renewable and sustainable energy research. In this paper, we propose a novel CCHP system based on a hybrid trigenerative compressed air energy storage system (HT-CAES), which can meet various forms of energy demand. A comprehensive thermodynamic model of the HT-CAES has been carried out, and a thermodynamic performance analysis with energy and exergy methods has been done. Furthermore, a sensitivity analysis and assessment capacity for CHP is investigated by the critical parameters effected on the performance of the HT-CAES. The results indicate that round-trip efficiency, electricity storage efficiency, and exergy efficiency can reach 73%, 53.6%, and 50.6%, respectively. Therefore, the system proposed in this paper has high efficiency and flexibility to jointly supply multiple energy to meet demands, so it has broad prospects in regions with abundant solar energy resource.
冷热电联产（CCHP）系统的综合利用技术是可再生和可持续能源研究的前沿领域。本文提出了一种基于混合式三能压缩空气储能系统（HT-CAES）的新型CCHP系统，该系统能够满足各种形式的能源需求。对HT-CAES进行了全面的热力学建模，并采用能量和㶲方法进行了热力学性能分析。此外，通过影响HT-CAES性能的关键参数，研究了热电联产的敏感性分析和评估能力。结果表明，往返效率、蓄电效率和㶲效率分别可达73%、53.6%和50.6%。因此，本文提出的系统具有高效率和灵活性，能够联合供应多种能源以满足需求，在太阳能资源丰富的地区具有广阔的应用前景。
