Fire Behavior in a Hermetic Pressurization Building for Reducing the Effects of High Altitude: A Case Study

Abstract

Hermetic pressurized buildings have been developed to reduce the effects of high altitude. The behavior and effect of fire in this new type of building have not been studied before. Unlike common buildings, the inside pressure in this new type of building is maintained at around standard atmospheric pressure, which is significantly higher than the outside environment pressure in high altitude regions. In addition, at the early stage of a fire, the oxygen required to maintain combustion in the sealed building is supplied by mechanical vents (if in operation) instead of opening windows or doors as in common buildings. This paper presents a case study on the behavior of fire in a sealed pressurized hotel building located in Tibet. Fire dynamics simulator (FDS) is used to study fire behavior under different design fire scenarios. Available evacuation time under different fire scenarios are obtained by analyzing oxygen concentration, gas content, temperature, visibility and other indicators. Based on this, a fire protection design scheme is suggested.

Combining MAS-GiG Model and Related Problems to Optimization in Emergency Evacuation

“…The authors selected a typical high-rise teaching building as an example and integrated two simulation software, Pyrosim and Pathfinder, to compare the available safe evacuation time (ASET) and required safe evacuation time (RSET). In the paper [19], the authors presented a case study on the behavior of fire in a sealed pressurized hotel building located in Tibet. A fire dynamics simulator (FDS) is used to study fire behavior under different design fire scenarios.…”

“…The impact of fires on the evacuation process [17][18][19][20], and the characteristics and behavior of humans during evacuation [21], has been tested. In [22], the authors focused on evacuation plans for buildings with multiple escape routes based on a network model of indoor pathways.…”