摘要
岩土体作为地源热泵系统(GSHPs)的热源或热汇,其热物性对钻孔热交换器(BHE)设计和系统运行有重要影响。为确定岩土导热系数偏差对BHE最优尺寸的影响,文章以济南某应用GSHPs的公寓为研究对象,通过通用优化程序(GenOpt)得到BHE的最优埋管长度及埋管数量,并与不同参数偏差下的优化结果进行比较。结果表明,岩土导热系数-10%的计算偏差能使BHE的长度增加6.95%,10%的计算偏差则使BHE的长度减少5.57%。
As the heat source or heat sink of ground source heat pump systems(GSHPs),the thermal physical properties of rock and soil mass have an important influence on the design of the borehole heat exchangers(BHEs)and system operation.In order to determine the influence of the deviation of rock and soil thermal conductivity on the optimal size of BHE,this paper takes an apartment applying GSHPs in Jinan as the research object,obtains the optimal length and the number of buried pipes of BHE through the generic optimization program(GenOpt),and compares them with the optimization results under different parameter deviations.The results show that the calculation deviation of-10%of the rock and soil thermal conductivity can increase the length of the BHE by 6.95%,while the calculation deviation of 10%can decrease the length of the BHE by 5.57%.
作者
施志钢
张长兴
蔡超
孙鹏堃
刘德民
SHI Zhigang;ZHANG Changxing;CAI Chao;SUN Pengkun;LIU Demin(School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266520,Shandong,China;College of Civil Engineering and Architecture,Shandong University of Science and Technology,Qingdao 266590,Shandong,China;Dongfang Electric Machinery Co.,Ltd.,Deyang 618000,Sichuan,China;Organization Department of Rushan Municipal Committee,Weihai 264500,Shandong,China)
出处
《工程技术研究》
2024年第18期155-157,180,共4页
Engineering and Technological Research
基金
德阳市揭榜挂帅重大攻关项目(2022JBZG002)
山东省自然科学基金面上项目(ZR2020ME187)。
关键词
钻孔热交换器
导热系数
数值模拟
参数优化
borehole heat exchanger
thermal conductivity
numerical simulation
parameter optimization
