摘要
以西安市某水源热泵系统为例,建立三维热渗耦合数值模型,对研究区渗流场和温度场的演化进行模拟研究。结果表明:水源热泵系统运行初期,抽灌井水位变化明显,1. 5 h后趋于稳定;随着热泵系统的运行,在水动力的驱动下,回灌井冷热锋面逐渐到达抽水井,发生热贯通后抽水井温度变化显著;含水层渗透系数越大,温度锋面的移动速度越快;抽灌井连线上渗透速度最大,温度变化最明显,随着热泵系统的运行,温度场的影响范围逐渐增大。
A 3-D numerical model was developed to simulate and analyze the seepage field and temperature field using water-source heat pumps in Xi’an,China.The results indicate that the head of pumping and recharging wells change obviously in the initial stage of running,and it tends to be stable after 1.5 hours.Besides,with the operating of the heat pump system,recharge wells temperature front gradually reach pumping well under the drive of hydrodynamic,and then the pumping well temperature changes significantly after heat transfixion.The higher the aquifer hydraulic conductivity,the faster the temperature front moves.Moreover,temperature changes biggest on the wells of attachment,where the velocity of permeablity is most fast,and with the operating of the heat pump system,the influence of temperature field is gradually incresing.
作者
于林弘
张生海
白莹
马聪
周维博
YU Lin-hong;ZHANG Sheng-hai;BAI Ying;MA Cong;ZHOU Wei-bo(No.3 Exploration Institute of Geology and Mineral Resources,Yantai Shandong 264004,China;College of Environmental Science and Engineering,Chang'an University,Xi'an Shaanxi 710054,China)
出处
《地下水》
2019年第1期7-10,共4页
Ground water
关键词
水源热泵
数值模型
渗流场
温度场
water-source heat pump
numericalsimulation
seepagefield
temperature field
