蓄热蓄冷一体化储能水箱的评价指标研究
Research on Evaluation Indicators of Integrated Energy Storage Water Tanks for Heat and Cold Storage
王凯润 1龚勋 2王海超 3王天雨 2董波伟 2李仲博 4王明策 2乔镖5
作者信息
- 1. 国家电投集团东北电力有限公司,辽宁沈阳 110623
- 2. 大连理工大学建设工程学院,辽宁大连 116024
- 3. 大连理工大学建设工程学院,辽宁大连 116024;阿尔托大学科学学院,芬兰艾斯堡11100
- 4. 北京市热力集团有限责任公司,北京 100086
- 5. 中国建筑科学研究院有限公司,北京 101119
- 折叠
摘要
阐述蓄热蓄冷一体化储能水箱的工作原理,分析设计特征数和评价指标.分析了弗劳德数Fr和雷诺数Re,并指出在布水器设计时应遵循Fr小于等于1的原则.提出了流速均匀性系数的概念,用于评价储能水箱水平截面的速度均匀性.分析了斜温层厚度、半循环性能系数和㶲效率,以定量分析储能水箱的分层效果和储能效率,为储能水箱的设计及优化运行提供评价依据.
Abstract
The working principle of integrated energy storage water tanks for heat and cold storage is elaborated,and the design feature numbers and evalua-tion indicators are analyzed.The Froude number Fr and Reynolds number Re are analyzed,and it is pointed out that the principle of Fr less than or equal to 1 should be followed in the design of water distributors.The concept of velocity uniformity coefficient is pro-posed to evaluate the velocity uniformity of the horizon-tal section of energy storage water tanks.The thickness of thermocline,half-cycle performance coefficient and exergy efficiency are analyzed to quantitatively analyze the stratification effect and energy storage efficiency of energy storage water tanks,providing an evaluation ba-sis for the design and optimization operation of energy storage water tanks.
关键词
蓄热/蓄冷/储能水箱/评价指标Key words
heat storage/cold storage/energy storage water tank/evaluation indicator引用本文复制引用
基金项目
国家重点研发计划中芬政府间国际科技合作项目(2021YFE0116200)
出版年
2024
国家科技期刊平台
NSTL
万方数据