摘要
本文以上海市某酒店地源热泵机组及系统为研究对象,依据上海市DG/TJ 08—2162—2015《可再生能源建筑应用测试评价标准》,对该系统制冷工况和制热工况进行了性能测试。在实测数据的基础上,计算了该机组及系统在制冷工况和制热工况下的制冷和制热性能系数,对机组和系统进行了能效评估。研究表明,对于低负荷率运行的工况,地源热泵系统并不能达到所要求的能效水平;高效节能的地源热泵由于运行管理水平差,造成小温差大流量等严重能源浪费现象。建议地源热泵系统等可再生能源的后评估体系进行进一步研究和完善。
The performance testing under heating condition and cooling condition for ground source heat pump system of a hotel in Shanghai was made,based on DG/TJ 08—2162—2015 Evaluation standard for application of renewable energy in buildings. The energy efficiency ratio of ground-source heat pump（ EER） and coefficient of ground-source heat pump（ COP） of the unit and the system were analyzed and also evaluated according to the test data.It is found that the performance of the unit and the system were not able to reach the requirements when the groundsource heat pump run under the low load ratio. It is showed that high efficiency ground source heat pump system has serious waste energy problems in cluding ＂small temperature and high flow＂because of poor operational management. It is suggested that the post evaluation method and system of renewable energy in building including ground-source heat pumpbe studied and completedin future.
出处
《制冷与空调》
2017年第12期54-58,共5页
Refrigeration and Air-Conditioning
关键词
低负荷
地源热泵
性能测试
low load rate
ground-source heat pump
performance test
