过渡季节冷却塔辅助供热的理论分析与研究  

Theoretical analysis on cooling tower auxiliary heating in transition seasons

作　　者：文先太[1] 梁彩华[1] 张小松[1] 

机构地区：[1]东南大学

出　　处：《暖通空调》2011年第2期90-93,共4页Heating Ventilating & Air Conditioning

基　　金：国家自然科学基金资助项目(编号:50676018);国家科技支撑计划重点资助项目(编号:2008BAJ12B02)

摘　　要：建立了计算模型,分析了室外温度和水流量对冷却塔热工性能的影响,讨论了优化水气比。得出在室外空气温度10.5℃、相对湿度60%、冷却塔进水温度0℃情况下,冷却塔辅助供热量达到45kW,满足室内供热的需求。提高冷却塔风机风量使其满足优化水气比时,在满足冷却塔辅助供热量为45kW的前提下,最低允许室外空气温度可达到7.6℃。Establishes a calculation model,analyses the influences of outdoor air temperature and water flow rate on the thermal performance of cooling tower,and discusses the optimized ratio of water to air.The results show that when outdoor air temperature is 10.5 ℃,relative humidity is 60%,and inlet water temperature is 0 ℃,the auxiliary heating capacity of cooling tower can reach to as high as 45 kW,which meets the demand of indoor heating.When improving the air flow rate of cooling tower to reach the optimized ratio of water to air,with meeting the condition of 45 kW heating capacity,the allowed minimum outdoor air temperature can be as low as 7.6 ℃.

关 键 词：冷却塔 辅助供热 优化水气比 

分 类 号：TU833.1[建筑科学—供热、供燃气、通风及空调工程]