技术中心

地源热泵夏季性能测试及传热模型【英文篇名】 Performance test of ground source heat pump systems in summer and heat transfer model 【作者中文名】 程群英; 罗明智; 孙纯武; 刘宪英; 【作者英文名】 By Cheng Qunying ★; Luo Mingzhi; Sun Chunwu and Liu Xianying ★Chongqing University; Chongqing; China; 【作者单位】 重庆大学; 【文献出处】 暖通空调, Hv 地下换热器; 传热模型; 性能测试; 【英文关键词】 ground source heat pump; underground exchanger; heat transfer model; performance test; 【摘要】 对50m深埋地下换热器地源热泵系统夏季间歇运行时的制冷性能进行了测试,分 析了系统运行对地温的影响,提出采用混合系统来解决重庆地区冬夏季土壤中吸热、放热不平 衡的问题,引入圆柱源理论建立了垂直U型管传热模型,模拟结果与实验结果吻合较好。 【英文摘要】 Tests the refrigerating performance of the ground source heat pump system with 50-metre-deep buried underground exchanger operating intermittently in summer. Analyses the effect of system operation on underground temperature. Suggests adopting mixed system to solve the problem of thermal imbalance between summer and winter in Chongqing areas. Introducing the cylindrical heat source theory, establishes a vertical U-type heat transfer model. The simulated results tally with the experimental data.