本文以三元非共沸混合工质R407C对传统工质HCFC22进行了替代,搭建了地源热泵系统实验台.考虑到在地源热泵运行时,地下土壤温度会因运行时间和冬夏季节的不同而发生变化,造成热泵的各种不同运行工况.为全面反映热泵的运行状态制订了测试方案,并对测试数据进行了整理和分析.该热泵系统在加热与制冷运行模式下COP均可达到3.6以上.
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