Abstract
The volumetric flow rate of smoke generated from the fire in large space often reaches to hundreds of thousands CMH because of extended floor height and as it’s more difficult to isolate the smoke to the limited area, comparing to normal-scale building, design and operation of effective smoke control system for large space is more than important. In this study, with the analysis model for such a large space as exhibition hall or conference room in conventional center, design of mechanical smoke exhaust system was conducted based on currently-available design standard which was then followed by numerical analysis of the design using 3D numerical analysis method. For conference room at 2.0 MW heat release rate, 99,173 CMH flow rate is required, if smoke layer is maintained at 60% of the floor height and for exhibition hall at 8.8 MW with 80% of floor height, flow rate required is 219,802 CMH, which are incorporated into the design. In view of 3D numerical analysis, accuracy of the design according to algebraic expression is sufficient.
Highlights
Construction of the structure with large space began in earnest in 1980s in line with the construction of indoor stadium for the booming international indoor sports events in Korea, which has maintained a growing tendency along with increasing number of large and complex buildings
The volumetric flow rate of smoke generated from the fire in large space often reaches to hundreds of thousands CMH because of extended floor height and as it’s more difficult to isolate the smoke to the limited area, comparing to normal-scale building, design and operation of effective smoke control system for large space is more than important
With the analysis model for such a large space as exhibition hall or conference room in conventional center, design of mechanical smoke exhaust system was conducted based on currently-available design standard which was followed by numerical analysis of the design using 3D numerical analysis method
Summary
Construction of the structure with large space began in earnest in 1980s in line with the construction of indoor stadium for the booming international indoor sports events in Korea, which has maintained a growing tendency along with increasing number of large and complex buildings. Ahn the smoke to the limited area, comparing to normal-scale building, design and operation of effective smoke control system for large space is more than important. Recognizing the hazards caused by fire smoke in large space in many countries, smoke control design guideline for large space has been developed and proposed worldwide since 1980s [1] [2] and the study to enhance the reliability of smoke control analysis technologies in large space through a full-scale test is still in process [3] [4] and recently, the measures to improve the smoke control system focusing on air supply and smoke exhaust efficiency is under review [5] [6] as well. Design of smoke safety system by mechanical smoke exhaust in conventional center was presented with the application of currently-available design standard followed by 3D numerical analysis method
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