철도차량 축소모형의 환기조건에 따른 화재거동의 실험적 연구

This study was analyzed to predict the heat release rate for the effect of ventilation in fire by the railcar of reduced scale. the railcar of reduced scale with a thickness 15 mm gypsum plaster board length 1.9 m, wide 0.29 m and height 0.23 was made by 1/10 of real scale railcar. the interior material of 3 mm corrugated was used and ignition sources considering the growth rate of the fire wad located at the corner in the scale model. the HRR were measured using the ISO 9705(room corner). the ventilation condition of experiments were applied in the opening door of one direction according to scenario of emergency evacuation. From the results, the time to reach the HRR max were delayed in the area of ventilations and the HRR max depending on the size of the ventilation area was increased.