热管式通风换热器热回收的实验研究  

Experimental investigation of heat recovery with thermosyphon heat exchanger

作　　者：杨开篇[1] 刁彦华[1] 赵耀华[1] 刘建荣[1] 于雯静[1] 

机构地区：[1]北京工业大学建筑工程学院,北京100022

出　　处：《化学工程》2009年第7期17-20,共4页Chemical Engineering(China)

基　　金：北京工业大学111人才工程资助项目(05004999200701);北京工业大学博士科研基金启动项目(52004016200702)

摘　　要：针对普通住宅日常通风换气的特点设计出一台小型热虹吸管式通风换热器的样机,并利用热虹吸管换热器对房间通风系统中的冷量(热量)进行热回收实验研究。通过实验测试了该换热器在不同风量和新、排风温差条件下的热回收效率,以及新、排风的压力损失随风速的变化情况。实验结果表明,新风的温降(升)随着新、排风温差的增大而增大,随着风量的增大而减小;该样机的最大热回收效率在夏季可达70%,冬季为63%,新、排风的最大阻力损失仅为25 Pa,节能效果显著。Focusing on the ventilation characteristics of the common housing, a thermosyphon heat exchanger prototype was designed. The thermal performance and effectiveness of thermosyphon heat exchanger in heat recovery system were investigated experimentally. The heat recovery efficiency of this thermosyphon heat exchanger at different wind volume rate and different temperature differences was tested. The effect of wind velocity on the pressure loss of fresh air and exhaust was also measured. The experimental results show that the temperature drop （rise） between inlet and outlet of fresh air increases with the temperature differences between the fresh air and exhaust, and decreases with the increase of wind volume rate. The maximum heat recovery efficiency is 70% in summer and 63% in winter. The maximum pressure loss is only 25 Pa. The energy conservation effect of this prototype is prominent.

关 键 词：通风换气 热回收 节能 热虹吸管换热器 空调 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]