Smoke Control Design

2015 ◽  
pp. 147-154
Keyword(s):  
Control Design ◽  
Smoke Control

scholarly journals A COMPARATIVE REVIEW OF DESIGN REQUIREMENTS FOR NATURAL SMOKE VENTILATION IN HOSPITAL BUILDINGS

2018 ◽  
Vol 16 ◽  
Author(s):  
Mohd Zaid Ab Ghani ◽  
Srazali Aripin
Keyword(s):  
Indoor Environment ◽  
Ventilation System ◽  
Control Design ◽  
Smoke Control ◽  
Open Spaces ◽  
Toxic Gases ◽  
Comparative Review ◽  
Hospital Building ◽  
Design Requirements ◽  
Main Factor

Smoke is recognized as the main factor of fatality when fire occurred in a building. Thus, smoke management in the building is of paramount importance in order to achieve a tenable indoor environment in the event of fire other than ensuring passive means of escapes to the place of safety. In hospital building, where patients have limited movements, natural smoke ventilation through windows is the most common form of smoke control design. Nevertheless, inappropriate design of natural smoke ventilation through window may result to poor smoke air flow contributing to unwanted toxic gases inhaled by occupants that lead to fatalities in the event of fire. This study aims to analyse the design requirements and specifications of natural smoke ventilation system in buildings by exploring local and other prominent building regulations as well as code of practices around some countries. The study found that smoke ventilation system (natural and mechanical) is usually applied in windowless building, basement and in large open spaces. The natural smoke ventilation system employs smoke vents (gravity vents) located at a higher level in the roof or at the ceiling level. The regulations state that the size of smoke vents for effective natural smoke ventilation is in between 2% to 3% of the floor areas. Most regulations would allow openable windows for smoke ventilation in the event of fire.

The spill plume in smoke control design

1998 ◽  
Vol 30 (1) ◽  
pp. 21-46 ◽  
Author(s):  
P.H. Thomas ◽  
H.P. Morgan ◽  
N. Marshall
Keyword(s):  
Control Design ◽  
Smoke Control

scholarly journals Application of Performance-based Analysis Method in Mechanical Smoke Control Design

2011 ◽  
Vol 11 ◽  
pp. 27-33 ◽  
Author(s):  
CHEN Ying ◽  
SHU Zhong-jun ◽  
LI Si-cheng ◽  
JI Jie
Keyword(s):  
Control Design ◽  
Analysis Method ◽  
Smoke Control

Fire sizes in hotel bedrooms — implications for smoke control design

1985 ◽  
Vol 8 (3) ◽  
pp. 177-186 ◽  
Author(s):  
G.O. Hansell ◽  
H.P. Morgan
Keyword(s):  
Control Design ◽  
Smoke Control

scholarly journals Investigation on the Effect of Platform Height on Smoke Characteristics of Fire Scenarios for Subway Stations

2021 ◽  
Vol 13 (19) ◽  
pp. 10584
Author(s):  
Desheng Xu ◽  
Yanfeng Li ◽  
Junmei Li ◽  
Jin Zhang ◽  
Jiaxin Li
Keyword(s):  
Early Stage ◽  
Control Design ◽  
Exhaust System ◽  
Maximum Temperature ◽  
Smoke Control ◽  
Smoke Spread ◽  
Fire Scenarios ◽  
Ceiling Height ◽  
Subway Stations ◽  
Safety Evacuation

In this study, three full-scale experiments and a series of numerical simulations were conducted to investigate the influence of subway platform height and atrium ceiling height of subway stations on smoke control by mechanical exhausting systems. The smoke temperature variation with time, maximum temperature distribution, and smoke stratification were discussed. Results showed that the atrium had capacity to store smoke, especially at the early stage of smoke spread. However, the efficiency of smoke extraction did not increase simply with the rise in platform height and atrium ceiling height, and favorable smoke exhaust velocity was crucial for smoke elimination. The optimal smoke exhaust velocity was studied by numerical simulation and it was found that the area of smoke diffusion in subway stations with a higher platform was significantly smaller under the optimal smoke exhaust velocity. In addition, a prediction model of optimal smoke exhaust velocity with subway platform height was proposed. This study could provide on-site data and smoke spread characteristics for smoke control design, operation, and, significantly, guide safety evacuation of the exhaust system of subway stations.

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