Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effects of fire location on the capacity of smoke exhaust from natural ventilation shafts in urban tunnels
Investigation of natural ventilation using shafts in tunnels has been receiving more attentions; however, analyses on how fire position influences the natural ventilation performance have rarely been addressed. This study investigated the influence of different fire positions between two shafts on natural ventilation effectiveness in a tunnel by large eddy simulation. The smoke movement characteristics were studied in detail, with systematically varying the fire position between two shafts and the longitudinal wind speed in the tunnel. The typical smoke characteristic parameters, such as temperature distribution, mass flow rate and CO concentration were emphatically investigated. Some special phenomena, such as plug‐holing and smoke bifurcation, were also discussed.
Effects of fire location on the capacity of smoke exhaust from natural ventilation shafts in urban tunnels
Investigation of natural ventilation using shafts in tunnels has been receiving more attentions; however, analyses on how fire position influences the natural ventilation performance have rarely been addressed. This study investigated the influence of different fire positions between two shafts on natural ventilation effectiveness in a tunnel by large eddy simulation. The smoke movement characteristics were studied in detail, with systematically varying the fire position between two shafts and the longitudinal wind speed in the tunnel. The typical smoke characteristic parameters, such as temperature distribution, mass flow rate and CO concentration were emphatically investigated. Some special phenomena, such as plug‐holing and smoke bifurcation, were also discussed.
Effects of fire location on the capacity of smoke exhaust from natural ventilation shafts in urban tunnels
Fan, Chuangang (Autor:in) / Chen, Jian (Autor:in) / Zhou, Yang (Autor:in) / Liu, Xiaoping (Autor:in)
Fire and Materials ; 42 ; 974-984
01.12.2018
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
SMOKE VENTILATION OF FIRE FIGHTING SHAFTS
| British Library Online Contents | 2003
Risks to fire-fighters? Issues relating to smoke shafts and the ventilation of fire-fighting shafts
| British Library Online Contents | 1999
Underground building natural lighting, daily ventilation, fire smoke exhaust device
| Europäisches Patentamt | 2015