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在武汉市地源热泵系统采暖季节测试的基础上,讨论了采暖工况下地源热泵机组及系统能效系数以及水系统输送系数,并与常规冷水机组+燃煤锅炉系统比较,分析了系统节能量、环境效益及增量投资回收期。得出结论:土壤源热泵水系统平均输送系数大于地下水源热泵系统;采暖工况地源热泵系统能效系数高于制冷工况,采暖季节比制冷季节节能率约高19.74%;单位建筑面积平均每年可减排二氧化碳18.35 kg、二氧化硫0.15 kg和粉尘0.074 3 kg;土壤源热泵系统的投资增量回收期比水源热泵系统高23%,费效比高32%。
Based on the heating season test of ground source heat pump system in Wuhan City, the energy efficiency coefficient of ground source heat pump unit and system and the transmission coefficient of water system under heating condition are discussed. Compared with the conventional chiller unit + coal fired boiler system, the system energy saving , Environmental benefits and incremental investment recovery period. The conclusion is that the average transfer coefficient of ground-source heat pump water system is greater than that of groundwater source heat pump system. The energy efficiency coefficient of ground source heat pump system under heating condition is higher than that of cooling condition, and the energy saving rate is 19.74% higher than that of cooling season in heating season. Emission reductions of 18.35 kg of carbon dioxide, 0.15 kg of sulfur dioxide and 0.074 3 kg of dust were obtained. The incremental investment recovery period for soil-source heat pump systems was 23% higher than that of water source heat pump systems, and the cost-effectiveness ratio was 32%.