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摘要 ：利用公共建筑热环境系统模拟计算软件DeST-c，模拟计算了水环热泵空调系统与风机盘管加新风系统在不同条件下的全年冷、热源运行能耗。分析了建筑内部负荷对水环热泵空调系统节能性的影响。得到了水环热泵空调系统在我国的适用地区范围。 关键词： 水环热泵 办公建筑 内部负荷 节能 Research on the energy saving of water loop heat pump system applied to office buildings By Liu Tianwei★ and Du Kai Abstract By means of the public building thermal environment design simulation softwareDeST-c, simulates the annual energy consumption of water loop heat pump system (WLHPS) and primary air fan coil system (PAFCS) under different conditions. In different architectural forms, analyses the impact of the internal thermal load on the energy efficiency performance of the WLHPS. Obtains a regional map of the WLHPS applicability in China. Keywords water loop heat pump, office building, internal thermal load, energy saving ★ Southeast University, Nanjing, China