摘要
为解决地铁长期运行过程中区间隧道过热问题,采用TRNSYS软件建立毛细管网前端换热器的地铁源热泵系统模型,在青岛地铁R13线灵山卫站进行热泵性能实验,实测数据与模拟结果吻合较好。此外,当地铁源热泵长期运行时,探究区间隧道围岩温度场及热泵机组性能系数COP的变化规律。结果表明,围岩表面和10 m处的围岩温度在5 a后将会分别增加7.85和4.71℃,热泵机组COP夏季制冷期间减少了2.47%,冬季供热期间增加了0.38%。
To solve the problem of overheating during long-term subway operation in running tunnel,a subway heat pump system model with capillary network as front-end heat exchanger is established by TRNSYS software.Heat pump performance tests are carried out at the Lingshanwei Station of Qingdao Metro R13 line,the measured date agrees well with the simulation results.In addition,the variation law of the temperature field in surrounding rock and the coefficient of performance(COP)on heat pump unit are explored during longterm subway source heat pump operation.The results indicate that the temperature of surface and 10 m surrounding rock will increase by 7.85℃and 4.71℃respectively after 5 years,and the COP of the subway source heat pump unit will decrease by 2.47%during summer cooling period,while increase by 0.38%during winter heating period.
作者
胡松涛
毛竹
季永明
刘国丹
佟振
管一鸣
Hu Songtao;Mao Zhu;Ji Yongming;Liu Guodan;Tong Zhen;Guan Yiming(College of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266033,China)
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2021年第11期429-436,共8页
Acta Energiae Solaris Sinica
基金
山东省重点研发计划(2019GGX103003)。
关键词
地下传热
热泵系统
毛细管
地铁隧道
围岩温度
数值模拟
underground heat transfer
heat pump systems
capillary tubes
subway tunnels
surrounding rock temperature
numerical simulation
