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Investigation of an efficient and green system based on liquid air energy storage (LAES) for district cooling and peak shaving: Energy and exergy analyses
Sustainable Energy Technologies and Assessments ( IF 8 ) Pub Date : 2021-06-17 , DOI: 10.1016/j.seta.2021.101396
Morteza Saleh Kandezi , Seyed Mojtaba Mousavi Naeenian

Liquid air energy storage is a very new energy storage technology for large-scale applications with brilliant advantages over the other available grid-scale storage concepts such as higher energy density and no topographical restriction. In the present study, to assist more development of this technology, an efficient and green multi-generation system based on the liquid air energy storage, absorption cycle, and Kalina system is proposed and deeply investigated from the first and second laws of thermodynamics and economic. Moreover, a sensitivity analysis is conducted to scrutinize the effect of critical parameters on system performance. The proposed system can be efficiently used for power and cooling capacity production during peak demand periods, both of which can assist peak shaving and grid stability. Thermodynamic analysis indicates that during peak demand periods, a power of 5300 kW is generated by the air turbine during 3 h and with round trip energy and exergy efficiencies of 65.7% and 49.7%, respectively. The economic analysis shows that the investment cost of the system is around 3.68 $M and the referenced system has a payback time of 3.6 years and a total turnover of 11.3 $M can be achieved at the end of 25th year.



中文翻译:

基于液态空气储能 (LAES) 的高效绿色系统用于区域供冷和调峰:能源和火用分析

液态空气储能是一种非常新的大规模应用储能技术,与其他可用的电网规模储能概念相比,具有更高的能量密度和不受地形限制等显着优势。在本研究中,为协助该技术的进一步发展,提出了一种基于液态空气储能、吸收循环和 Kalina 系统的高效绿色多发电系统,并从热力学和经济第一定律和第二定律进行了深入研究。 . 此外,还进行了敏感性分析,以检查关键参数对系统性能的影响。所提出的系统可以在高峰需求期间有效地用于电力和冷却能力的生产,这两者都可以帮助调峰和电网稳定性。热力学分析表明,在高峰需求期间,空气涡轮机在 3 小时内产生 5300 kW 的功率,往返能量和火用效率分别为 65.7% 和 49.7%。经济分析表明,该系统的投资成本约为 3.68 美元,参考系统的投资回收期为 3.6 年,第 25 年末可实现总营业额 11.3 美元。

更新日期:2021-06-17
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