摘要
有机朗肯循环发电系统中较低的冷凝温度能够十分显著提高系统性能,通过综合考虑低冷凝温度的应用场景并结合当今能源利用情况,建立了有机朗肯循环发电、液化天然气汽化、液化压缩空气储能3个子系统的耦合发电系统,该耦合发电系统降低了传统有机朗肯循环系统中冷凝温度下限,提高了有机朗肯循环系统发电效率和压缩空气储能系统储能效率。通过对该耦合系统建立热力学模型,并对其进行热力学分析表明,在所设定参数下,该耦合系统综合电-电转化率高达81.8%,较传统压缩空气储能系统效率显著提升。
The lower condensation temperature in an organic rankine cycle(ORC)power generation system can significantly improve the performance of the system.By comprehensively considering the application scenario of low condensation temperature and combining the current energy utilization situation,it establishes a coupled power generation system of three subsystems of ORC power generation,liquefied natural gas(LNG)vaporization,and liquefied compressed air energy storage(LAES).This coupling power generation system reduces the lower limit of the condensation temperature in the traditional ORC system,improves the power generation efficiency of the ORC system,and the energy storage efficiency of the compressed air energy storage(CAES).Through the establishment of a thermodynamic model and thermodynamic analysis of the coupling system,the calculation and analysis show that under the set parameters,the comprehensive electric-to-electric conversion rate of the coupling system reaches 81.8%,which is significantly higher than the efficiency of the traditional CAES.
作者
胡立凯
HU Likai(Tianjin Branch of China Huadian Co.,Ltd.,Tianjin 300203,China)
出处
《东北电力技术》
2023年第9期58-62,共5页
Northeast Electric Power Technology
基金
中国华电集团有限公司重点科技项目(CHDKJ19-01-88)。
关键词
储能
有机朗肯循环
液化压缩空气
耦合系统
energy storage
organic rankine cycle
liquefied compressed air
coupled system
作者简介
胡立凯(1990),男,硕士,工程师,主要从事新能源发电、储能及电力生产技术管理工作。
