技术中心

摘 要: 结合武汉某实际工程的地埋管群阵列布置情况和地源热泵系统的运行情况，对典型区域的地埋管群运行5年中埋管换热特性进行了动态数值模拟和分析。提出了温度偏离度和换热保证度的概念，并研究了两者在地源热泵长期运行过程中变化规律。建议尽量减小冷热负荷不平衡，以保证地源热泵系统稳定可靠的运行。 关键词 ： 地源热泵 温度偏离度 换热保证度 负荷不平衡率 Research On Heat Transfer Characteristics Of Compact Underground Heat Xchangers In Ground Source Heat Pump Systems Abstract： Based on the array arrangement of underground heat exchangers and the operational conditions of a ground source heat pump system in Wuhan, numerically simulation on compact underground heat exchangers layout during the five years in the typical zones was conduct to analyze the heat transfer characteristics. The concepts of temperature deviation degree and heat transfer assurance factor were presented. and their variation was studied for a long term operation of ground source heat pump systems. Some suggestions should be implemented form the point of reducing load imbalance rate as much as possible to ensure the stability and reliability of ground source heat pump system operations. Keyword: ground source heat pump temperature deviation degree eat transfer assurance load imbalance rate