热源塔在不同城市的供暖特性分析  

Analysis on Heating Characteristics of Heat Source Tower in Different Cities

作　　者：卫俊宇 吕怿非 向阳 卢军 王琳玉 殷叔靖 Wei Junyu;Lv Yifei;Xiang Yang;Lu Jun;Wang Linyu;Yin Shujing(School of Civil Engineering,Chongqing University,Chongqing,401331;Jiangsu Simpson New Energy Co.,Ltd,Yangzhou,225127)

机构地区：[1]重庆大学土木工程学院,重庆401331 [2]江苏辛普森新能源有限公司,扬州225127

出　　处：《制冷与空调（四川）》2021年第4期552-556,共5页Refrigeration and Air Conditioning

摘　　要：热源塔热泵系统在夏热冬冷地区作为冬季热源是一个很好的尝试。建立开式横流热源塔内部的传热传质数值模型,并在TRNSYS中建立热源塔热泵系统模型。确定建筑模型后计算出重庆地区的全年逐时负荷,然后确定供暖季的冷热源选型。选取成都、重庆、武汉3个城市作为分析对象,综合分析建筑用3台热源塔的冬季换热性能。结果表明,热源塔溶液进、出口温度随空气露点温度而变化;建筑负荷升高,热源塔溶液进、出口温差增大,逼近度升高;潜热换热量随着空气含湿量的升高而增大,潜热比的变化趋势与潜热换热量相同;机组COP高于系统COP,机组COP随着空气含湿量的升高而增大。热源塔热泵系统在冬季低温高湿地区更适用。The heat source tower heat pump system is a good attempt as heat source in winter in hot summer and cold winter area.In this paper,the numerical model of heat and mass transfer in the open cross flow heat source tower is established,and the heat pump system model of the heat source tower is established in TRNSYS.After the building model is determined,the annual hourly load of Chongqing is calculated,and then the selection of cold and heat sources in heating season is determined.Taking Chengdu,Chongqing and Wuhan as the analysis objects,the winter heat transfer performance of three heat source towers for buildings is analyzed comprehensively.The results show that the inlet and outlet temperatures of the solution vary with the air dew point temperature;With the increase of the building load,the temperature difference between the inlet and outlet of the solution in the heat source tower increases,and the approximation degree increases;The latent heat transfer increases with the increase of air moisture content,the change trend of latent heat ratio is the same as that of latent heat transfer;The COP of the unit is higher than that of the system,and the COP of the unit increases with the increase of air moisture content.Heat source tower heat pump system is more suitable in low temperature and high humidity area in winter.

关 键 词：开式横流热源塔 逼近度 潜热换热量 性能系数 

分 类 号：TU831.7[建筑科学—供热、供燃气、通风及空调工程]