헬륨 공기 혼합모델을 이용한 축소 모형터널 화재 연구

초록

When we build a railway tunnel more than 1km, based on Rail Facility Safety Standards (by the Ministry of Construction Notification No. 2006-395), the performance evaluation for smoke removing device can be conducted by+T796 fire experiment at actual tunnel. However, many human and physical resources should be considered. So, the modelled tunnel fire (or CFD interpretation) is needed. This study substitutes heat floating phenomenon with helium floating. It has the purpose of safe and efficient copy. In this study, modelled tunnel which is 85.6 times scale ratio has been made. Data acquired from the experiment apparatus are compared with CFD interpretation. Also, experiments of the modelled tunnel fire, using helium-air mixture model were suggested.