Safety Performance Analysis and Demonstration of the Underground Station in Mass Rapid Transit for Smoke Management Contral System

• Main Authors: Jim Hsieh, 謝豐駿
• Other Authors: Mau-Song Sheen
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/37326578943101333503

碩士 === 國立高雄應用科技大學 === 土木工程與防災科技研究所 === 96 === In this study, the design of smoke exhaust system of underground station in mass rapid transit system is reviewed and explored. By using 3-dimesnional software FDS (Fire Dynamics Simulator) which developed by NIST (National Institute of Standards and Technology), 3D CFD (Computational Fluid Dynamics) simulation of smoke control system of underground station is conducted in order to evaluate if the design of smoke exhaust system is adequate under the case of fire in public area. In addition, safety of evacuation of passenger is also examined in this study. Temperature, CO concentration, visibility and heat intensity of radiation are evaluated in this study and requirements in these matters are satisfied under various conditions associated with analytical results. Within 360 seconds fire taking place, 10.0m visibility in concourse level can remain at least 1.8m above floor so passengers can evacuate away from fire successfully. Further, in the condition of 2.5MW of scale of fire, two exhausts with 36.0m3/s of capability in total and 50cm of length of smoke prevention wall are capable to provide an effective exhaust system. Through the simulation in this study, all checked parameters are adequately satisfied with the leveds suggested by NFPA130 so the passengers can evacuate to a safe place within 6 minutes. In order to further approve the reliability of fire-protection system, a full-scale experiment is delivered on site. Test results show current fire-protection system can fulfill related requirements.