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A Study on Setting Smoke Exhaust Rate According to the Transverse Ventilation with Oversized Exhaust Ports in Road Tunnel by the Variation of Fire Intensity  

Rie, Dong-Ho (인천대학교 안전공학과)
Kim, Ha-Young (인천대학교 안전공학과 대학원)
Publication Information
Fire Science and Engineering / v.22, no.2, 2008 , pp. 38-43 More about this Journal
Abstract
Recently, the application of transverse ventilation system in accordance with oversized exhaust ports has been increased in bidirectional road tunnel in order to improving smoke exhaust ability. In this study, numerical simulations were carried out by using FDS (ver. 4.0) which includes variations of exhaust flow rates and heat release rate of fire to obtain the optimal smoke exhaust rate in case of fire in the transversely ventilation system. As a result, smoke exhaust amount tends to increase when the inner velocity is existing in the tunnel. In case of internal longitudinal air velocity 2.5m/s face to the fire, smoke moving distance should be restricted within 250m when the smoke exhaust rate which exceeds $244.8m^3/s$.
Keywords
Tunnel fire; Transverse smoke exhaust system; Oversized exhaust ports;
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  • Reference
1 F. Sergiu, "Task Force for Technical Investigation of the 24 March 1999 Fire in the Mont Blanc Vehicular Tunnel - Status Report of April 13, 1999" (2000)
2 B. Bettelini and A. Henke, "Upgrading the Ventilation of the Gotthard Road Tunnel", 11th Int. Sym. on the Aero. and Ventilation of Vehicle Tunnels, BHRGroup, pp.29-45(2003)
3 "NFPA 502 Standard for Road Tunnel, Bridges and Other Limited Access Highways, Quincy, Massachusetts, 1998 Edition", NFPA(1998)
4 O. Vauquelin and D. Telle, "Smoke Control in Tunnel Fires - Should we Talk about Critical Velocity or Critical Mass Flow Rate", 10th Int. Sym. on the Aero. & Vent. of Veh. Tunnels, pp.97- 103(2000)
5 김명배, 최병일, 최준석, 한용식, "도로터널에서의 화 재환기 설계에 관한 연구", 한국터널공학회 논문집, Vol.6, No.2, pp.129-140(2004)
6 McGrattan K, editor, "Fire Dynamics Simulator (version 4) Technical Reference Guide", NIST, (2005)
7 지하공간 환경개선 및 방재기술 연구단, "2.18 대구 지하철 화재 조사연구 백서", 경북대학교 도시환경설 비 연구실(2004)
8 "Road Tunnels: Emissions, Ventilation and Environment", PIARC(1995)
9 "Richtlinien fur die Ausstattung und den Betrieb von StraBentunneln", RABT, Germany(2002)
10 "Circulaire Int. No 2000-82 DU relative a la reglementation de la circulation des vehicules transportant des marchandises dangereuses dans les tunnels routiers du reseau national", CETU, France (2000)
11 도로터널 방재시설 설치지침, 건설교통부(2004)
12 유지오, 이동호, 김치경, 신현준, "반횡류식 환기설비 를 활용한 화재시 터널 방재연구", 2005년 한국화재 소방학회 춘계학술논문발표 논문집, pp.131-137 (2005)
13 FHA, "Memorial Tunnel : Fire Ventilation Test Program, CD-ROM and Comprehensive Test Report", Messachusetts Highway Dept.(1996)