土壤源热泵模型实验及土壤热平衡研究综述  

Review of Model Experiment and Ground Thermal Balance Research of Ground Coupled Heat Pump

作　　者：朱伟[1] 吕超 吴子龙 ZHU Wei;LYU Chao;WU Zi-long(Zhejiang Sci-Tech University,Hangzhou 310018,China)

机构地区：[1]浙江理工大学,杭州310018

出　　处：《建筑节能（中英文）》2022年第11期103-110,共8页Building Energy Efficiency

基　　金：浙江省自然科学基金资助项目(LY18E060009)。

摘　　要：土壤源热泵的实际工程投资较高,在研究阶段采用模型实验的方法更具优势,而目前尚未检索到对土壤源热泵模型实验的相关综述,因此整理了这方面的相关文献,并根据相似理论将模型实验分为相似模型实验与非相似模型实验,对其特点、应用和局限性等方面进行了总结和分析,得出模型实验能以较小的成本得到较准确的结果,但仍需完善实验参数的设计及相似理论的研究。土壤源热泵系统长期运行时应保持土壤热平衡,以往这方面的综述介绍不是很全面。对缓解土壤热不平衡的主流方式进行了分类讨论,包括增加辅助冷/热源、优化运行策略、地埋管分区布置及运行等,并给出了一些建议,以期土壤源热泵系统可以更高效地运行。可为土壤源热泵的研究提供参考,也期望促使模型实验和土壤热平衡这两方面研究能够有机结合。The actual engineering investment of ground coupled heat pump is high, and it is more advantageous to use model experiment in the research stage. At present, no relevant review on model experiment of ground coupled heat pump has been retrieved, so some literatures of this field were sorted out. The model experiment can be divided into similar model experiment and non-similar model experiment according to the similarity theory, and their characteristics, applications and limitations were summarized and analyzed. The model experiment can get more accurate results with less cost, but still needs to improve the design of experimental parameters and the research of similarity theory. Ground coupled heat pump systems should maintain ground thermal balance during long-term operation, while the previous reviews in this area were not very comprehensive. So the main ways to alleviate soil thermal imbalance were categorized and discussed, including adding auxiliary cold/heat source, optimizing operation strategies, zoning arrangement and operation for buried pipe. Some suggestions were also provided in order to guarantee the ground coupled heat pump systems can operate more efficiently. The review will provide a reference for the study of ground coupled heat pump, expecting to promote the organic combination of model experiment and ground thermal balance research.

关 键 词：土壤源热泵 模型实验 相似理论 土壤热平衡 

分 类 号：TU832[建筑科学—供热、供燃气、通风及空调工程]