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目前随着人们对建筑室内环境舒适度的要求的不断提高,各种类型的暖通空调系统得以大范围的推广开来,然而在能源日益紧缺的大时代背景下,迫使暖通空调系统向节能性方向发展,通过技术上的创新来利用可再生能源替代短缺能源,而土壤源热泵系统就是应运而生的可再生能源建筑应用技术之一。然而土壤源热泵由于面世时间较短,系统并没有得到最大化完善,目前影响地埋管束换热效率的因素包括管径、钻孔直径与钻孔间距、管内流体及进出口温度、管材、埋管方式及深度、土壤深度等[1-3]。下面就几个主要影响因素以及有关提高土壤源热泵换热效率作简要介绍。
At present, with the continuous improvement of the indoor comfort requirements of buildings, various types of HVAC systems can be popularized in a wide range. However, in the age of energy shortage, the HVAC system is forced to save energy The direction of development, through technological innovation to use renewable energy to replace shortages of energy, and the ground-source heat pump system is a came into being one of the renewable energy building applications. However, the ground-source heat pump has not been maximized due to its short time-to-market. At present, the factors influencing the heat transfer efficiency of buried pipe bundles include pipe diameter, borehole diameter and hole spacing, fluid in the pipe, temperature at the inlet and outlet, Tube way and depth, soil depth [1-3]. Here are a few main influencing factors and related to improving the heat transfer efficiency of ground source heat pump for a brief introduction.