Impact of the Pressure Differences Between Road Galeries On Tunnels Generated by the Smoke Control System

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

Smoke Control System for High-Rise Buildings in Japan

2011 ◽  
Vol 6 (6) ◽  
pp. 551-557 ◽  
Author(s):  
Shuji Moriyama ◽  
Keyword(s):  
Control System ◽  
Basic Concept ◽  
Exhaust System ◽  
Smoke Control ◽  
High Rise ◽  
Air Tightness ◽  
Opening And Closing ◽  
Smoke Control System ◽  
Combustible Materials

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.

scholarly journals PERFORMANCE EXAMINATION TEST OF PRESSURIZED SMOKE CONTROL SYSTEM FOR A HIGH-RISE APARTMENT BUILDING

2002 ◽  
Vol 8 (15) ◽  
pp. 137-142 ◽  
Author(s):  
Shuji KAKEGAWA ◽  
Michihiro OTA ◽  
Masaharu OKUDA ◽  
Mitsuhiro TAKAHASHI ◽  
Masayuki HIROTA
Keyword(s):  
Control System ◽  
Apartment Building ◽  
Smoke Control ◽  
High Rise ◽  
Smoke Control System ◽  
Performance Examination

scholarly journals A Comparative Study on Domestic and Foreign Standards for Air Supply for the Improvement of a Smoke Control System for High-Rise Buildings

2019 ◽  
Vol 33 (4) ◽  
pp. 105-111
Author(s):  
Hye-Won Kim ◽  
Byeong-Heun Lee ◽  
Seung-Hyeon Jin ◽  
Su-Gak Lee ◽  
Jung-Yup Kim ◽  
...  
Keyword(s):  
Control System ◽  
Comparative Study ◽  
Smoke Control ◽  
High Rise ◽  
Air Supply ◽  
Smoke Control System

Application of Computer Simulation Technique in Smoke Control System Design

2011 ◽  
Vol 255-260 ◽  
pp. 1848-1852
Author(s):  
Ying Chen ◽  
Si Cheng Li ◽  
Jie Ji
Keyword(s):  
Computer Simulation ◽  
Control System ◽  
System Design ◽  
Rapid Development ◽  
Design Parameters ◽  
Control System Design ◽  
Smoke Control ◽  
Air Supply ◽  
Supply Mode ◽  
Smoke Control System

The fire simulation technology is widely used with the rapid development of computer technology. Taking a 12-story building for calculation, numerical simulation method is used to analyze the wind speed distribution characteristics of opening stairwell door and lobby door under different air supply volume. Then the appropriate pressurized air supply mode and back pressure coefficient value under natural smoke venting have been recommended. The researches show that computer simulation can be used in smoke control system design to help determine pressurized air supply mode and design parameters, so as to solve difficult problems in engineering design.

Subway Station Fire Prevention System Safety Analysis

2013 ◽  
Vol 405-408 ◽  
pp. 1861-1864
Author(s):  
Ruo Jun Wang ◽  
Bin Jiang ◽  
Yan Ying Xu
Keyword(s):  
Control System ◽  
Sprinkler System ◽  
Simulation Software ◽  
Subway Station ◽  
Fire Prevention ◽  
Smoke Control ◽  
System Safety ◽  
Prevention System ◽  
Automatic Sprinkler ◽  
Smoke Control System

Fire prevention system of subway station plays an important role in ensuring passenger safety. The Shenyang Youth Street subway station fire prevention system safety was studied, applying performance-based fire protection design analysis method, using of FDS simulation software on the station fire prevention safety system for the calculation and analysis. Three working conditions were set when subway fire happens. Fire smoke flow characteristics and the distribution of temperature, CO concentration and visibility were analyzed and compared. The results show that the automatic sprinkler system and smoke control system have great effect on the preventing spread of fire. In the automatic sprinkler system and smoke control system conditions, fire hazards have not reached the standards of passengers tolerance.

Numerical Analysis on Parameters Adjustment of Smoke Control System in a Complicated Underground Commercial Zone

2013 ◽  
Vol 341-342 ◽  
pp. 743-747
Author(s):  
De Wen Li ◽  
Jing Zhao Zhang
Keyword(s):  
Control System ◽  
Fire Spread ◽  
Smoke Control ◽  
Smoke Movement ◽  
Technical Parameters ◽  
Fire Scenarios ◽  
Dynamic Simulator ◽  
Underground Fire ◽  
Fire Dynamic Simulator ◽  
Smoke Control System

The technical parameters adjustment of smoke control system in a complicated underground commercial zone is studied by numerical simulations. An underground fire model (it encloses a hotel, a supermarket, and a net bar) and five typical fire scenarios are designed. The Fire Dynamic Simulator code is used to investigate the characteristics of fire spread and smoke movement, and obtain the available safety egress times in different fire scenarios. The required safety egress time is calculated based on the data of actual simulation exercises and numerical simulation by Building EXODUS. The simulation results show that, when the smoke exhaust rate is 5.56 cubic meter per second and air low rate reaches 3.89 cubic meter per second simultaneously, the available safety egress time is more than the required safety egress time.

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