闭式热源塔换热性能实验研究
Experimental study on heat transfer performance of closed-type heat source towers
摘要：
建立了闭式热源塔热泵实验系统，实验研究了不同空气温度和相对湿度、溶液流量、风量下闭式热源塔换热性能的变化规律。结果表明：闭式热源塔的总吸热量在7 kW以上，总吸热量随空气温度、相对湿度和溶液流量增大而增大，注重潜热能的利用能有效地增加总换热量；热源塔能效比随空气温度和相对湿度的升高而增大，随溶液流量增大而减小，在满足吸热量的前提下应减小风机转速以降低能耗。
Abstract：
Establishes an experimental system for closed-type heat source tower heat pump system. Studies the variation characteristics of heat transfer performance of the closed-type tower under the different conditions of air temperatures, relative humidities, solution flows and air volumes. The results show that the total heat absorption of the closed-type heat source tower is over 7 kW. The total heat absorption increases with the increase of air temperature, relative humidity and solution flow. Focusing on the use of latent heat can increase the total heat absorption. Energy efficiency ratio of heat source tower increases with the increase of air temperature and relative humidity, while decreases with the increase of solution flow. Fan speed should be reduced to save energy if the heat absorption is satisfied.
Keywords:closed-type heat source tower, heat pump, heat transfer performance, heat absorption, energy efficiency ratio, air temperature, relative humidity, solution flow