Heat Flow Characteristics by Sectional Shapes in Underground Electric Power Tunnel

지하 전력구 단면 형상에 따른 터널내 열유동 특성

This study has conducted a computational analysis to find out about characteristics of heat flow emitted from power lines when the sectional form of electric power tunnel that adopts forced ventilation is shaped like a rectangular, arch or horseshoe. The result of analysis shows that the temperature in the vicinity of the power line peaked at $70^{\circ}C$ when the sectional form is a rectangular, which indicates it is less affected by ventilation than the form of an arch or horseshoe.