경전철 시스템 선로 결빙방지에 관한 실험적 연구

Abstract

The snow melting and deicing system by electric heating cables which is adopted in this research is a part of road facilities. This system keeps the road surface temperature higher than freezing point of water for melting the snow accumulated on it. Two electric heating cables are buried under the concrete road at a certain depth and pitch and operated automatically and manually. Design theory, amount of heat input and installation standard vary according to economic situation, weather condition and installation place. A main purpose of this study is figuring out the appropriate range of required heat input, installation depth and pitch for deicing and melting snowdrift with minimum electric power consumption. Experiment was performed under two freezing air temperatures (-2℃, -5℃), the pitch of the electric heating cables (200mm, 300mm), heat inputs (250W/m2, 300W/m2, 350W/m2), with 70mm of burying depth.