建筑物通风换热器工作特性的实验研究

用实验手段对自行设计加工的用于空调系统中显热回收的通风换热器进行研究，得到了空调房间室内、外温差和不同迎面风速对换热器的换热性能和流动阻力特性的影响，拟合出了该换热器的传热和流动阻力准则关系式；以冬季工况为例进行了节能效果分析；实验结果表明，该换热器的换热效率可以达到64．5％，其阻力损失不超过20Pa，具有明显的节能效果。说明其在实际应用中是可行的、有效的，是值得推广的空调节能技术。

Experimental Investigation on Work Performances of Ventilation Heat Exchanger in Building

The experiment on the ventilation heat exchanger designed and developed by author which was used as energy recovery in air conditioning system was performed.The effect of the indoor and outdoor temperature differences of the air conditioning room and various frontal air velocities on the performance of heat exchanging and the resistance character of the heat exchanger was investigated and the rule relations of the performance of heat exchanging and the resistance character of the heat exchanger was fitted.Then analyzed the energy conservation effect based on winter data.The results show that the efficiency of heat exchanging reaches 64.5% and the pressure loss is less than 20Pa.The air conditioning system used the heat exchanger obtained remarkable energy conservation effect which shows that put the heat exchanger into practice is feasible,effective and deserved popularizing on energy conservation.