摘要
比较了地源热泵系统地下换热器周围土壤温度场的主要影响因素,通过建立近边界与远端土壤传热模型,用数值计算和实测数据分析了地源热泵在连续运行10年期间不同工况对地下土壤温度场的影响,比较了系统在短期与长期连续运行对土壤温度场影响的异同,得出了常年运行状况下土壤温度场的变化规律,对系统运行后期地下温度场的变化做了预测。
We have compared the main influence factors of soil temperature field around the ground heat ex- changer of ground heat pump system. According to the operation data of ground source heat pump system of the past 10 years, it is found that the temperature field of the underground soil is affected by different operating conditions. Based on numerical calculation and experimental data, these factors were analyzed by establishing the heat transfer model of the soil near the boundary and the distal end. The differences and similarities of soil temperature field in the short term and long term continuous operation system were also analyzed. The changing patterns of the soil temperature field in a decade are obtained. In addition, we predicted the change of the temperature field in the late stage of operation.
出处
《苏州科技学院学报（自然科学版）》
CAS
2016年第3期71-75,共5页
Journal of Suzhou University of Science and Technology （Natural Science Edition）
基金
江苏省高校自然科学研究重大项目(14KJA610001)
关键词
地源热泵
传热模型
土壤温度场
影响因素
ground heat pump system
heat transfer model
soil temperature field
influence factors
