Numerical study on the impact of gradient on semi-transverse smoke control system in tunnel

2014 ◽  
Vol 44 ◽  
pp. 68-79 ◽  
Author(s):  
P. Lin ◽  
S.M. Lo ◽  
T. Li
2017 ◽  
Vol 31 (3) ◽  
pp. 88-96
Author(s):  
Hyo-Gyu Kim ◽  
◽  
Doo-San Baek ◽  
Yong-Ho Yoo ◽  
◽  
...  

2022 ◽  
Author(s):  
João Carlos Viegas ◽  
Carlos Oliveira Costa ◽  
Bernardo P. B. Monteiro ◽  
Paulo Dias Pereira

2011 ◽  
Vol 6 (6) ◽  
pp. 551-557 ◽  
Author(s):  
Shuji Moriyama ◽  

A smoke exhaust system must be installed basically in all high-rise buildings in Japan, in order to eliminate smoke and gas from combustible materials and ensure safe evacuation effectively. However, a new problem, i.e., the difficulty of opening and closing doors when a smoke exhaust fan is operating, has occurred since air-tightness has been improved in high-rise buildings. There are therefore many cases recently where a pressurized smoke control system is adopted. In this paper, the basic concept of this system is described and the pressurized smoke control system that is used in Harumi Triton Square, one of the largest high-rise buildings in Japan.


2011 ◽  
Vol 250-253 ◽  
pp. 3098-3102
Author(s):  
Hong Ming Fan ◽  
Kai Yuan He ◽  
Dan Zhang ◽  
Zhi Fang Yin

Rail transit hub is key node in urban transportation system. The study on properties of ventilation and smoke control system can improve response ability in case of fire and give ventilation and smoke control design guidance for underground rail transit hub. Take Beijing DongZhimen underground rail transit hub as research object, according to its air turbulent flow characteristics, introducing standard turbulence model based on the N-S equation. Build the computational fluid dynamics model for solving the flow field within underground rail transit hub. Through theoretical analysis and numerical simulation, take "Siamese model” results as the boundary condition and establish a mathematical model of rail transit hub with CFX. Then research fire smoke development and spread laws when the exhaust fan within underground rail transit hub delayed open.


2002 ◽  
Vol 8 (15) ◽  
pp. 137-142 ◽  
Author(s):  
Shuji KAKEGAWA ◽  
Michihiro OTA ◽  
Masaharu OKUDA ◽  
Mitsuhiro TAKAHASHI ◽  
Masayuki HIROTA

2019 ◽  
Vol 33 (4) ◽  
pp. 105-111
Author(s):  
Hye-Won Kim ◽  
Byeong-Heun Lee ◽  
Seung-Hyeon Jin ◽  
Su-Gak Lee ◽  
Jung-Yup Kim ◽  
...  

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