两种地质气候条件对岩土换热器的影响

Influence of two kinds geological and climate conditions on rock heat exchangers

建立了地源热泵岩土换热器的简易数理模型 ,计算分析了竖直埋管的岩土换热器性能 ,并在重庆和上海两地进行了岩土换热器试验 ,发现短期运行参数与实验数据一致 ,长期连续运行性能参数小于实际值。计算分析和试验结果表明 ,岩土性能及由年平均温度决定的岩土原始温度对岩土换热器性能有显著影响。在砂岩中设置的换热器比沉积土中的性能好。岩土原始温度越低 ,换热器夏季的换热性能越强。综合考虑地质气候条件 ,上海。

Establishes a simplified mathematical model for ground heat pump rock heat exchangers. Conducts tests of them both in Chongqing and Shanghai. Finds out that the results from the calculation and analysis by means of the mathematical model on short term function of the vertical placed rock heat exchangers are in accordance to those from the test, and on long term continual function the results are lower than the measured ones. Researches show that the rock pattern and the primitive rock temperature determined by the annual average air temperature influence the function of rock heat exchangers greatly. The performance of rock heat exchangers placed in sand rock seems better than that placed in sediment rock. The lower the primitive temperature is, the higher the capacity of the rock heat exchangers. Considering comprehensively geological and climate conditions, rock heat exchangers can be used in Chongqing and Shanghai.