埋地新风风管换热器节能效果探讨

摘要

埋地风管换热器是一种新型的节能技术，广泛应用于欧洲被动房技术中，其特点是利用土壤深处地温波动小、近于恒温的特点，对建筑物的新风进行预冷、预热处理，来达到新风节能的目的。通过介绍埋地新风换热器内空气温度的计算方法，采用具体算例，计算了采用埋地风管换热器的节能量。%The underground pipe heat exchanger for fresh air system is a new energy saving technology that has been widely used in passive houses. The temperature fluctuation of the deeper soil is smaller than that of the surface. This character can be used to warm the fresh air in winter and to cold it in summer. The calculation method of the heat exchanger is introduced. The energy saving potentials of this system is demonstrated by an example.