关于建筑节能土壤源热泵太阳能补热设计研究

Design of Solar Energy Heat Supply and Auxiliary for Soil Source Heat Pump of Hohhot Area

太阳能集热系统结合地源热泵系统是目前先进的可再生能源利用技术。以内蒙古教育厅办公楼土壤源热泵系统为工程实例,通过测量搜集土壤源热泵的实时运行数据、地埋管侧土壤温度变化数据以及热泵机组各项能耗数据,并对数据进行相应的统计计算和分析,得出了教育厅土壤源热泵全年由于北方地区夏季、冬季负荷不均造成的地埋管侧土壤热量的损失量为2 098.49 GJ,不平衡比为2:5。详细阐述了该工程土壤源热泵太阳能补热系统的设计过程,并通过经济效益分析验证了其具有良好的节能减排效益,为今后可再生能源利用的研究提供了一定的工程经验、数据和方法。

Currently, solar-thermal system combining the source heat pump system is the most advanced renewable energy utilization technology. The ground-source heat pump system for the office building of Inner Mongolia Education Department is researched. By measuring and collecting the real-time data of soil source heat pump, soil temperature variation of buried pipe side, and the energy consumption of heat pump units, with the corresponding statistical calculations and analysis on the data, the paper elaborated that the soil heat loss of buried pipe side is 2 098.49 GJ caused by the uneven load in northern region between winter and summer, and the unbalance ratio is 2：5. The design process of the ground source heat pump assisted with solar thermal system for local education department is described in detail. The system is proved of good energy conservation efficiency through economic benefit analysis, providing engineering experience, data and methods for researching the renewable energy in future.