太阳能-地热道路融雪系统路面传热特性的数值研究  

NUMERICAL STUDY ON HEAT-TRANSFER BEHAVIOR OF THE PAVEMENT IN ROAD SNOW-MELTING SYSTEM WITH SOLAR AND GEOTHERMAL ENERGY

作　　者：王华军[1] 赵军[1] 陈志豪[1] 曲航[1] 

机构地区：[1]天津大学机械学院热能工程系,天津300072

出　　处：《太阳能学报》2007年第6期608-611,共4页Acta Energiae Solaris Sinica

摘　　要：初步建立了道路融雪系统的路面传热模型,并基于典型年逐时气象数据与复合边界条件,进行了稳态传热数值模拟,分析了不同埋管深度和加热温度对道路融雪性能的影响,得到了最大和待融热负荷与降雪量、环境温度、相对湿度以及风速等因素之间的关系,可为工程设计应用提供必要的参考依据。Heat transfer model of the pavement was established and numerical simulation was carried out based on annual hourly meteorological data and boundary conditions. The influences of different buried depth of the tubes and heating temperature of circulating fluid on the performance of road snow-melting system were analyzed. The relations among maximum and idling snow-melting load, the rate of snowfall, ambient temperature, relative humidity, wind speed and other factors were obtained, which could provide necessary references data for the design of practical road snow-melting system.

关 键 词：地热能 道路融雪 传热 数值模拟 

分 类 号：TK521[动力工程及工程热物理—热能工程] TK529