Operation Analyse of a U-tube Ground Heat Exchangers of GSHP system in Cold Region of China

被引：2
|
作者：
Li, Huai [1 ]
Wu, Jianlin [1 ]
Yu, Zhen [1 ]
Xu, Wei [1 ]
机构：
[1] China Acad Bldg Res, Inst Bldg Environm & Energy, 30 BeiSanHuanDongLu, Beijing 100013, Peoples R China
来源：
6TH INTERNATIONAL BUILDING PHYSICS CONFERENCE (IBPC 2015) | 2015年 / 78卷
关键词：
Ground Source Heat Pump; borehole; Performance analysis; soil temperature variation; NZEB;
D O I：
10.1016/j.egypro.2015.11.376
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The objective of this study is to discuss summer operation performance of a large Ground Source Heat Pump System (GSHP) for a NZEB office building in cold region of Beijing, China. Borehole performance under different field distribution and its impact to the surrounding soil at different depth is monitored and analysed. It is found that double U-tube has approximately 1.3 times heat releasing amount than the single tube and soil temperature raised by up to 1.4 degrees C after 2.5 months' cooling operation. The operational data is of great value to understand and further optimize the operation strategy. It is believed that better system performance could be achieved with the completion of system commissioning and integration of building automation. (C) 2015 Published by Elsevier Ltd.
引用
收藏
页码：1937 / 1943
页数：7
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