三种不同电采暖方式的技术经济分析——以石家庄某民居为例

Technical and Economic Analysis of Three Different Electric Heating Methods for A residence in Shijiazhuang

电能作为一种清洁能源,对于减少煤炭使用、实现清洁供暖具有重要意义。结合石家庄某民居热负荷数据及当地政策,对三种不同电采暖方式和壁挂式燃气锅炉进行对比分析,结果表明:太阳能热泵+谷电蓄热供暖系统20年生命周期内最具经济性;相变蓄热式电锅炉供暖系统炉配网增容大,不具备推广价值;空气源热泵+谷电蓄热供暖系统与壁挂式燃气锅炉供暖系统各项费用相当,但具有削峰填谷和新能源消纳的优势,且在华北地区运行效果最佳,可作为大规模推广方式。

As a clean energy source,electrical energy is of great significance for reducing coal use and achieving clean heating. Based on the heat load data of a residential house at Shijiazhuang and local policies,three different electric heating methods and wall-mounted gas boiler（ WG B） are compared and analyzed. The results show that solar heat pump ＋ phase-change heat-storage electric boiler by valley electricity（ SAHP ＋ PHEB） system is the most economical in the 20-year life cycle. Phase-change heat-storage electric boiler（ PHEB） system needs a great reconstruction on distribution network,without available promotion. Air source heat pump ＋ phase-change heat-storage electric boiler by valley electricity（ ASHP ＋ PHEB） system has a similar cost with wall-mounted gas boiler. But with the advantage of peak shaving and valley filling on electric and new energy consumption,it can be used as large-scale promotion methods,let alone the best effects in North China.