THE COUPLING MODEL OF CANAL TEMPERATURE AND SOIL TEMPERATURE IN SEWAGE HEAT PUMP SYSTEM
The utilization foreground of urban sewage heat pump is quite widely, specially when taking sewage water as heat source in cold area. Based on the dummy heat source imaginary method, the soil temperature and simplified conditions have been given. The soil temperature field around trunk canal and the route temperature function of trunk canal are analytic in theory. In order to utilize in project, the temperature-changing model of trunk canal is approximate treatment. The research shows that it is difficult to obtain the exact solution due to the complexity of physics model and boundary conditions. But the heat transfer coupling model between trunk canal and soil is obtained by analytic in theory, so the temperature field is a hood face taking soil temperature in the same depth as asymptotic line. The canal temperature is approach to soil temperature at the depth of burial at last. The simplified model is suitable for project and in conformity of the physical mechanics.
Original sewage Cool and heat source Water temperature Soil temperature Coupling model
Ronghua Wu Ying Xu Dexing Sun Xin Li Lei Huang
School of Municipal & Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China
国际会议
北京
英文
2007-09-07（万方平台首次上网日期，不代表论文的发表时间）