基于新风系统的地埋管换热器冷补偿系统研究

摘要

针对中国夏热冬冷地区的地源热泵系统地下换热器热积聚的问题，现有的辅助散热方案存在造价高、能耗大等问题。因此本文提出了一种基于新风系统的地埋管换热器冷补偿系统（OA-CC），该系统可用于中国夏热冬冷地区地埋管系统辅助散热。本文选取某办公楼的地埋管热泵系统为对象，使用 TRNSYS 软件分别对常规地埋管热泵系统和设有 OA-CC 系统的地埋管热泵系统进行了仿真模拟，并对设有 OA-CC 系统的地埋管热泵系统进行了运行试验。然后通过将2种模拟结果和运行试验的参数对比分析，说明了 OA-CC 系统在消除热不平衡方面具有良好的效果。%In hot summer and cold winter area,the ground-coupled heat pump system often has the problem of heat accu-mulation.To solve this problem,some researchers proposed auxiliary cooling system such as cooling tower and surface wa-ter heat exchanger and achieved good results.But the initial cost and energy consumption of these systems were still high. A cold compensation system based on outdoor air supply system for ground heat exchanger (OA-CC)is proposed in this pa-per.This system can be adopted to extract heat from soil for ground-coupled heat pump system in hot summer and cold win-ter area.An office building with OA-CC system is selected to be the research object.TRNSYS simulation and operation ex-periment are conducted based on this building.Through the comparison and analysis of simulation and experiment results, the conclusion can be drawn that OA-CC system has good performance on cold compensation and its efficiency in compensa-tion progress is higher than cooling tower.