温湿独立控制地源热泵的热堆积缓解及能耗分析  

Analysis on the Heat Accumulation and Energy Consumption of Temperature and Humidity Independent Control GSHP

作　　者：李心仪 李丽伟 田会珍 Li Xinyi;Li Liwei;Tian Huizhen(College of Energy and Mechanical Engineering,Shanghai University Of Electric Power)

机构地区：[1]上海电力大学能源与机械工程学院

出　　处：《上海节能》2019年第9期756-762,共7页Shanghai Energy Saving

摘　　要：针对温湿独立控制的地源热泵系统,综合考虑能效比、占地面积和能耗,研究钻孔间距及逆工况运行对土壤热不平衡的影响及缓解。利用Trnsys建立温湿独立控制地源热泵系统模型,计算分析机组运行10年后逆工况不同时长、不同时段对埋管周围土壤平均温度、COP以及能耗的影响。在最佳逆工况时段下考虑钻孔间距对普通地源热泵系统以及温湿独立控制的地源热泵系统参数的影响。对比分析结果表明:温湿独立控制地源热泵系统的4m^5m较小钻孔间距可以达到普通地源热泵系统6m较大钻孔间距的热缓解能力,且小间距下最高温升仅为1.648℃,同时能耗更低,最高可降低25 226kWh。Considering coefficient of performance,buried pipe area and energy consumption,the influences of wells spacing and reverse operation on the thermal imbalance of soil around the buried pipe have been investigated.The Trnsys model of temperature and humidity independent control ground source heat pump system is established,and the effects of different periods of reverse working running for 10 years on the average temperature,COP and energy consumption around the buried pipe is calculated and analyzed,Under the optimal reverse working period,comparison of the effects of the wells spacing on the parameters of the common GSHP system and the temperature and humidity independent control GSHP system is completed.The analysis results show that:The temperature and humidity independent control GSHP system with 4-5m wells spacing can achieve the equivalent heat mitigation capability to the common GSHP system with 6m wells spacing.The highest temperature rise at a small spacing is only 1.648℃,while the energy consumption is lower,energy saving is 25226 KWh.

关 键 词：地源热泵 温湿独立控制 TRNSYS模拟 热堆积 能耗 

分 类 号：TU8[建筑科学]