Monitoring actual performance of ground source heat pump system using GPRS-based data transmission: A case analysis in Tangshan

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• 作者：Hong-pu Du ; Xiang-fei Kong ; Min Li …
• 关键词：ground source heat pump ; monitoring ; operation performance
• 刊名：Journal of Central South University of Technology
• 出版年：2015
• 出版时间：April 2015
• 年：2015
• 卷：22
• 期：4
• 页码：1554-1562
• 全文大小：1,203 KB
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• 刊物类别：Engineering
• 刊物主题：Engineering, general
  Metallic Materials
  Chinese Library of Science
  
• 出版者：Central South University, co-published with Springer
• ISSN：2227-5223

文摘

The energy efficiency monitoring is an essential precondition for ground source heat pump system’s controlling and energy saving operation. Based on the data monitoring applied in the school building, this work is focused on the parameters acquisition and operation analysis of the GSHP system in Tangshan. Results show the average COPs (coefficient of performance) are 2.85 and 2.70 in summer and winter, respectively, and heat(cold) unbalance underground existed after whole year operation. The analysis of data also indicates that the direct borehole air-conditioning saved some power consumption obviously in the early stage of summer and energy saving of the GSHP system depended remarkably on its operation and management level. Besides the observation points of ground temperature are laid for a large-scale GSHP system, and the hydraulic balance of the pipes group needs to be concerned specially in safeguarding better reliability.