环境温度对道路微波除冰效率的影响

Influence of environmental temperature on road de-icing efficiency using microwave

为了实现冬季道路微波快速除冰,对微波除冰过程中的路面材料、环境温度、冰厚、冰层杂质含量(质量分数)、微波加热模式和波导口距路面高度等因素对微波除冰效率产生的影响进行了分析;并对关键影响因素之一的环境温度进行了仿真和试验研究。研究结果表明:相同情况下,环境温度越低,除冰效率就越低;微波加热停止最佳时刻应在路面与冰层结合处温度升至0℃后、结合处冰层开始融化前,具体时刻要靠实际路况确定。

In order to achieve fast de-icing in winter road maintaining using microwave, the influence factors, such as the road material, environment temperature, thickness of ice, impurity content in ice, heating mode of microwave, distance between road and waveguide and so on, were studied during deicing process. Then, one of the key influence factors, environment temperature, was analyzed by simulation and experiment. The results indicate that the de-icing efficiency reduces with the falling of environment temperature at the same condition; the best stop time of microwave heating is the moment after the temperature of coalescent ice rising to 0℃ and before ice melting. The certain time should be determined according to actual road condition. 2 tabs, 9 figs, 6 refs.