化工学报2025，Vol.76Issue(4)：1545-1558,14.DOI:10.11949/0438-1157.20240958
多工况下直凝式蓄热型铝制辐射板换热器供暖性能研究
Research on heating performance of direct-condensation thermal storage aluminum radiant heating panel under multiple working conditions
摘要
Abstract
A new type of aluminum,fanless,built-in heat storage material direct condensing radiant panel heat exchanger(AHE)is proposed,which can be combined with an air source heat pump system for indoor winter heating in buildings.Based on the heat transfer mechanism of the heat storage type direct condensation radiant panel and considering the influence of refrigerant flow on heat transfer performance,a flow heat transfer mathematical model suitable for AHE was established,and the accuracy of the model was verified through experiments.The results showed that the numerical simulation results of heat dissipation,pressure drop,and heat exchanger surface temperature had an average deviation of less than 5%from the experimental values.Numerical simulations were conducted on the thermal performance of AHE under 168 working conditions,and the results showed that increasing the condensation temperature and refrigerant flow rate helps to improve the heat transfer intensity,while increasing the condensation temperature is beneficial for reducing flow losses.In 168 working conditions,the average temperature difference between AHE refrigerant and surface temperature was 9.7℃,and the maximum temperature difference between adjacent structural layers of AHE was 6.3℃between the copper tube and the water layer.Finally,a heat dissipation characteristic formula suitable for AHE thermal performance prediction was proposed,providing a technical basis for performance analysis and optimization of radiant heating panel systems.关键词
辐射/数值模拟/蓄热材料/空气源热泵/散热特征公式/优化Key words
radiation/numerical simulation/thermal storage materials/air source heat pump/formula for heat dissipation characteristics/optimization分类
能源科技引用本文复制引用
许成城,邵索拉,魏文建,郑旭..多工况下直凝式蓄热型铝制辐射板换热器供暖性能研究[J].化工学报,2025,76(4):1545-1558,14.基金项目
浙江理工大学科研基金项目(21052322-Y) （21052322-Y）
南浔青年学者项目(RC2022021082) （RC2022021082）
