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

作　　者：王凯润 龚勋[2] 王海超[2,3] 王天雨 董波伟 李仲博 王明策[2] 乔镖 WANG Kairun;GONG Xun;WANG Haichao;WANG Tianyu;DONG Bowei;LI Zhongbo;WANG Mingce;QIAO Biao

机构地区：[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]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

出　　处：《煤气与热力》2024年第5期6-10,共5页Gas & Heat

基　　金：国家重点研发计划中芬政府间国际科技合作项目“基于数字孪生的供热系统全网动态优化及低碳智慧调控关键技术研究”(2021YFE0116200)。

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、半循环性能系数和火用效率,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。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 

分 类 号：TU995.7[建筑科学—供热、供燃气、通风及空调工程]