摘要
以圆柱双U型低温相变蓄能装置为对象,利用数值模拟计算方法,动态分析了相变蓄能装置蓄热特性、释热特性,并分析热流体温度、流速对相变蓄能装置蓄热影响。研究结果表明:相变温度、固相率、流体温度是分析蓄热、释热特征的关键参数;提高热流体流速、温度均可以缩短相变蓄热时长,热流体温度比热流体流速对蓄能装置蓄热特性影响更大。
A cylindrical double U-shaped low-temperature phase-change energy storage device was used as an object to dynamically analyze the heat storage and heat release characteristics of the phase-change energy storage device by numerical simulation method,and the influence of thermal fluid temperature and flow rate on the heat storage device was analyzed.The results show that the phase change temperature,solid phase ratio and fluid temperature are the key parameters to analyze the characteristics of heat storage and heat release.Increasing the velocity and temperature of hot fluid can shorten the duration of phase change heat storage,and the temperature of hot fluid has more influence on the heat storage characteristics of energy storage device than the velocity of hot fluid.
作者
张瑞雪
邵京
李俊华
崔一鸣
薛汇宇
冯晓梅
康熙
Zhang Ruixue;Shao Jing;Li Junhua;Cui Yiming;Xue Huiyu;Feng Xiaomei;Kang Xi(China Academy of Building Research,Beijing,100013;China National Aviation Fuel Group Limited,Beijing,100088;Jianke EET Co.,Ltd,Beijing,100013;Hebei Construction Engineering Quality Testing Center Co.,Ltd,Shijiazhuang,050021)
出处
《制冷与空调(四川)》
2025年第1期26-33,共8页
Refrigeration and Air Conditioning
基金
国家重点研发计划项目“零碳建筑太阳能高效蓄能输配与末端技术及产品研发”(2022YFC3802704)
近零碳供油系统设计研究与实践(HYKJ-202212)。
关键词
双U型低温相变蓄能装置
蓄热特性
释热特性
相变温度
固相率
流体温度
Double U-type low-temperature phase change storage device
Heat storage characteristics
Heat release characteristics
Phase change temperature
Solid phase ratio
Fluid temperature
