RESTORABILITY AND DETERMINATION OF CANAL TEMPERATURE IN URBAN SEWAGE HEAT PUMP SYSTEM
The utilization foreground of urban sewage heat pump is widely, but the temperature restorability in trunk canal is one of the key problems. The untreated sewage has the characteristic of large area, high temperature, easily to exploit and high economic value. When the sewage having heat transmission with soil, there is a coupling source exited between them, however, the soil can adjust and stabilize the sewage temperature. The restorability can release the problem of sewage heat pump system debasing the sewage temperature in the water treatment plant, and even dont have affection on biochemical process of sewage. The purpose of the paper is to determine the reasonable range of temperature reducing. At the present time, there is no research about this field in domestic and foreign country. In the paper, the model of canal temperature, the characteristic value of canal condition and the characteristic value of soil temperature are defined. The canal temperature status before and after sewage temperature reducing have been investigated and compared. The restorability degree of reducing temperature has been forecasted based on the model of canal temperature and the investigating results.
Urban Sewage Cool and heat source Trunk canal temperature Soil temperature Restorability
Ying Xu Ronghua Wu Dexing Sun
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）