新疆大学学报（自然科学版中英文）2025，Vol.42Issue(4)：496-505,10.DOI:10.13568/j.cnki.651094.651316.2025.04.01.0002
高温熔融盐储热辅助热电联产机组灵活调峰研究
Research on Flexible Peak Shaving of Combined Heat and Power Generation Units Assisted by High-Temperature Molten Salt Thermal Energy Storage
摘要
Abstract
To address the mismatch between thermal and electrical loads in coal-fired combined heat and power generation units during heating seasons,and the operational discrepancies between heating/non-heating periods,this study proposes a molten salt thermal energy storage system with a bidirectional heat exchange configura-tion.During heating seasons,the system operates in"main/reheat steam charging-feedwater discharging"mode to enhance operational flexibility and satisfy district heating demands,and in non-heating seasons,it adopts"main/reheat steam charging-feedwater/condensate cooperative discharging"mode to improve thermal efficiency.Simulation results demonstrate that the bidirectional heat exchange architecture enables flexible switching between charging/discharging modes,achieving a minimum electrical load of 98.76 MWe(28.2％of turbine heat acceptance(THA)rating)at 90 MWth heating demand during heating seasons,and 106 MWe(30.3％THA)with 80％main steam extraction ratio in non-heating seasons.Economic evaluation reveals a 12.3％reduction in capital costs compared to conventional molten salt systems during heating operation.The research validates the effectiveness of bidirectional thermal storage-exchanger configurations in enhancing whole-lifecycle economic performance and energy efficiency,providing technical support for low-carbon transition of thermal power units through operational flexibility improvement and energy cascade utilization optimization.关键词
熔盐储热/双向换热系统/供暖季/非供暖季/深度调峰/热电联产Key words
molten salt thermal energy storage/bidirectional heat exchange system/heating season/non-heating season/deep peak-shaving/combined heat and power generation分类
信息技术与安全科学引用本文复制引用
张鹏,廖海燕,周兆伦,王翔,卓建坤,姚强..高温熔融盐储热辅助热电联产机组灵活调峰研究[J].新疆大学学报（自然科学版中英文）,2025,42(4):496-505,10.基金项目
国家重点研发计划"多能协同能质优化匹配方法及系统稳定提效技术"(2023YFB4102901) （2023YFB4102901）
新疆维吾尔自治区天山英才计划"新疆碳中和能源科学与技术研究"(2022TSYCLJ0001). （2022TSYCLJ0001）
