Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fire-Induced Horizontal Vent Flow Pattern in a Ceiling Vented Enclosure: Theoretical Analysis and Experimental Verification
The flow pattern is the one important factor to indicate the vented flow regularity, which is of great significance for understanding and preventing ceiling vented enclosure fires. In this paper, an experimental study on fire-induced flows in a ceiling vented enclosure was carried out. Five pan diameters and six horizontal opening sizes were adopted and measurements included the pressure difference in the top and temperature at the two sides of the opening. The instantaneous flow pattern was recorded by a video camera and laser technique. The purpose was to reveal the fire-induced flow pattern and make a distinguish between these flow patterns. Furthermore, the buoyancy number and the global equivalence ratio were introduced to analyze the fire-induced flow pattern in the ceiling vented enclosure. Through experimental analysis, the flow pattern across the horizontal ceiling vent induced by the real fire was revealed and summarized, which would benefit for studying the ventilation system in the fire risk assessment and firefighting.
Fire-Induced Horizontal Vent Flow Pattern in a Ceiling Vented Enclosure: Theoretical Analysis and Experimental Verification
The flow pattern is the one important factor to indicate the vented flow regularity, which is of great significance for understanding and preventing ceiling vented enclosure fires. In this paper, an experimental study on fire-induced flows in a ceiling vented enclosure was carried out. Five pan diameters and six horizontal opening sizes were adopted and measurements included the pressure difference in the top and temperature at the two sides of the opening. The instantaneous flow pattern was recorded by a video camera and laser technique. The purpose was to reveal the fire-induced flow pattern and make a distinguish between these flow patterns. Furthermore, the buoyancy number and the global equivalence ratio were introduced to analyze the fire-induced flow pattern in the ceiling vented enclosure. Through experimental analysis, the flow pattern across the horizontal ceiling vent induced by the real fire was revealed and summarized, which would benefit for studying the ventilation system in the fire risk assessment and firefighting.
Fire-Induced Horizontal Vent Flow Pattern in a Ceiling Vented Enclosure: Theoretical Analysis and Experimental Verification
Wu, Guan-Yuan (Herausgeber:in) / Tsai, Kuang-Chung (Herausgeber:in) / Chow, W. K. (Herausgeber:in) / Chen, Xiao (Autor:in) / Lu, Shouxiang (Autor:in)
Asia-Oceania Symposium on Fire Science and Technology ; 2018 ; Taipei, Taiwan
The Proceedings of 11th Asia-Oceania Symposium on Fire Science and Technology ; Kapitel: 14 ; 167-179
01.01.2020
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Modeling Fire Behavior in an Enclosure with a Ceiling Vent
| British Library Online Contents | 1993
Fire-Induced Temperature Correlations in Ceiling Vented Compartments
| British Library Online Contents | 2015
| British Library Conference Proceedings | 1995