冷凝热回收技术在土壤源热泵空调系统的应用研究

The Study of Condensing Heat Recovery Technology in the Application of Ground Source Heat Pump System

对于现有建筑物而言,大多是将空调系统和居民生活热水系统独立设计。这样的设计方案一方面空调系统释放冷凝热,加剧室外环境热污染;另一方面设置燃气锅炉或电加热设备来满足生活热水需求,导致建筑能耗增加。以西安市曲江新区某别墅建筑土壤源热泵系统为研究对象,通过住宅建筑专用能耗模拟分析软件DeST-H对别墅建筑逐时负荷进行模拟计算,根据《建筑给水排水设计规范》对别墅建筑生活用水负荷进行详尽计算,分析土壤源热泵系统可提供的冷凝热,评估冷凝热回收技术与土壤源热泵系统结合的可行性。

For most of the existing buildings,the air conditioning system and domestic hot water system are independent of each other.In this way,on one hand,heat release of air conditioning system during the condensation process cause the increase of the ambient thermal pollution;and on the other hand,gas boiler or electrical heating devices used for water heating leads to an increase of building energy consumption.Such design is not good for the improvement of the energy efficiency of buildings and the environmental protection effect.This study takes the ground source heat pump system of a villa in Qujiang New District of Xi’an as the research object.Load calculation is finished with a dedicated residential building energy simulation software DeST-H;based on the Building Water Supply and Drainage Design Specifications.A detailed calculation of the villa’s domestic water loaded is completed,the amount of condensation thermal energy supplied by the soil source heat pump is evaluated;the feasibility evaluation of the combination of the condensing heat recovery technology with the ground source heat pump system is completed.