热力发电2024，Vol.53Issue(8)：1-8,8.DOI:10.19666/j.rlfd.202405103
熔盐储热耦合压缩空气储能系统经济性分析
Economic analysis of a compressed air energy storage system coupled with molten salt thermal storage system
摘要
Abstract
As a large scale of physical energy storage technology,compressed air energy storage technology is widely used in consumption of renewable energy and peak shaving of power grids.A compressed air energy storage system coupled with molten salt thermal storage is designed,and the composite system is modeled using Ebsilon software.Based on the operating conditions of the energy storage system supplying hot water,steam,and electricity,the exergy efficiency,thermal efficiency,and economic performance under different operating modes are studied.The results indicate that,the composite system achieves the highest exergy efficiency(64.98%)at a storage pressure of 7 MPa and an exhaust temperature coefficient of 1.96.The highest thermal efficiency(91.55%)is attained at a storage pressure of 12 MPa.In the application scenario of combined heat,steam,and electricity cogeneration,the optimal energy storage duration is 6 hours.Additionally,at gas storage pressures of 7 MPa and 12 MPa,the optimal power generation durations are 6 hours and 8 hours.This research provides theoretical guidance for the study of cogeneration of power and heating using compressed air energy storage system coupled with molten salt thermal storage system.关键词
熔盐储热/压缩空气储能/热电联供/㶲效率/热效率Key words
molten salt thermal storage/compressed air energy storage/cogeneration of power and heating/exergy efficiency/thermal efficiency引用本文复制引用
赵瀚辰,韩伟,姚明宇,孙雨薇,秦进,张顺奇,张可臻,陆续..熔盐储热耦合压缩空气储能系统经济性分析[J].热力发电,2024,53(8):1-8,8.基金项目
中国华能集团有限公司总部科技项目(HNKJ22-H24) （HNKJ22-H24）
陕西省重点研发计划(2024GX-ZDCYL-04-10) Science and Technology Project of China Huaneng Group Co.,Ltd.(HNKJ22-H24) （2024GX-ZDCYL-04-10）
Key Research and Development Program of Shaanxi Province(2024GX-ZDCYL-04-10) （2024GX-ZDCYL-04-10）
