本文重点研究了太阳能-热泵耦合系统运行模式的节能效果，并结合实验数据建立了系统的热泵机组数学模型、土壤换热器数学模型。

The models of the solar collectors, heat pumps and the ground heat exchangers were established combing the experimental data. The temperature probe was installed under the ground.

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闭环埋地换热器与周围土壤和岩石层的热量交换速率是闭环地源热泵系统设计和成功运行的关键。

It is very important to determine the heat transfer between ground heat exchanger and surrounding soil for a closed ground source heat pump.

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以配置冷却塔的复合式土壤源热泵为研究对象，建立了地埋管换热器简化计算模型。

Taking the hybrid ground source heat pump with cooling tower as research object, a simplified calculation model of buried tube heat exchanger is established.

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