Optimization of emergency ventilation mode for a train on fire stopping beside platform of a metro station

Hu, Longhua; Wu, Long; Lu, Kaihua; Zhang, Xiaochun; Liu, Shuai; Qiu, Z.W.

doi:10.1007/s12273-013-0143-6

Cited by 39 publications

(7 citation statements)

References 24 publications

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“…Hybrid ventilation is an effective way to exhaust fire induced smoke with a 3 × 3 m or larger roof window in an atrium ceiling. Hu et al [70] suggested that in an emergency scenario involving a train on fire stopping beside the platform of a subway station, the most effective strategic cooperative ventilation mode is only to activate the over track exhaust system of the tunnel rail track area with the aid of the activation smoke exhaust pattern of a platform ventilation system. Natural ventilation through vertical shafts or roof openings has the benefits of saving space, lowering costs, simplifying maintenance, and saving electricity.…”

Section: Smoke Control and Exhaustmentioning

confidence: 99%

A Review of Ventilation and Environmental Control of Underground Spaces

2022

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Because of rapid urbanization, traffic problems, and other factors, underground spaces have been used more in the twenty-first century. Large underground spaces are required for underground city, metro, tunnel, mine, industrial and agricultural engineering, and civil air defense engineering. Underground spaces with varying thermal, ventilation, and lighting environments can face problems of comfort, health, and safety. High temperatures, high humidity, difficulty in flue gas emission, harmful microorganisms, radon, and physical and psychological problems are examples of issues. Air quality control technologies for underground spaces, such as ventilation, dehumidification, natural energy utilization, smoke extraction, and ventilation resistance reduction, are discussed. Ventilation for smoke-proofing/evacuation is also extensively addressed.

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Section: Smoke Control and Exhaustmentioning

confidence: 99%

A Review of Ventilation and Environmental Control of Underground Spaces

2022

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“…In general, subway platforms are equipped with an air supply/exhaust system for air conditioning, a track exhaust system for handling train heat, and a tunnel exhaust system that is installed for ventilation and emergency smoke exhaust at both ends of the station, and in the case of fire occurring, it is possible to use these systems as a smoke control/smoke exhaust system [27,28]. Therefore, the selection and application of the operating mode of the optimized smoke exhaust system is essential for efficient fire effluent exhaust and requires careful design, with the aim of minimizing human injury [29]. Nevertheless, in the case where a platform screen door (PSD) is installed for the purpose of cooling the subway platform and preventing passengers falling on the track, there is a problem in that it is operated independently without integration with the existing smoke exhaust system [30,31].…”

Section: Introductionmentioning

confidence: 99%

Sustainable Urban Planning Technique of Fire Disaster Prevention for Subway

Rie

Ryu

2020

Sustainability

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Subway infrastructure is a representative urban infrastructure for sustainable urban development as part of its policy to harmonize with economic growth. As the transportation infrastructure of large cities develops with high speed and intelligence, more attention will be paid to its safety. The main cause of death in subway fires is asphyxiation, due to the closed specificity of the underground space. Therefore, smoke exhaust facilities should be capable of minimizing the effects of smoke to ensure the safe evacuation of passengers in the event of fire. In this study, three kinds of fire locations are adopted to analyze the distribution of platform temperature, CO, and visibility in connection with the smoke exhaust system operation method. We evaluate the performance of the applicable smoke exhaust system from ASET-based untenable area analysis. Fatality evaluation by escape analysis according to the smoke exhaust system estimates the fatality based on the tenability performance evaluation. Moreover, the FED method was used to evaluate tenability performance. Therefore, the result of this study suggests a solution for sustainable subway Disaster response from the performance evaluation of the subway platform smoke exhaust system for safe evacuation of passengers, which is essential for subway construction or remodeling.

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“…Kwon et al [9] performed a numerical analysis to improve ventilation efficiency by installing an exhaust fan in the lower space of the staircase and thus to solve the problem of deterioration of the ventilation efficiency in the station by removing the influence of the train-induced wind due to the installation of the PSD. Hu et al [10] analyzed the most effective ventilation mode when a fire occurs on a train between the underground subway platforms by using CFD. Roh et al [11] investigated the effects of the PSD on the escape time of passengers in the event of fire by using FDS (fire dynamics simulator) code.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Heat and Smoke Flow according to Platform Screen Door and Fan Conditions on Fire in Underground Platform

Jung

Kang

Yoon

et al. 2018

Advances in Civil Engineering

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In this study, a three-dimensional flow analysis of underground subway station was conducted by applying ventilation mode in operation and platform screen door (PSD) opening and closing conditions on fire in underground platform. In order to analyze optimal smoke control and heat removal conditions, the whole underground subway station was set as a model, and a total of eight cases were analyzed by changing the operating conditions of fans for each area under the opening and closing conditions of the PSDs. e analysis results confirmed that the operation mode of supply fan in platform E and I areas located at the third floor underground is more effective than that of exhaust fan in the event of a fire in underground subway station when the PSD is closed. e amount of CO entering a waiting room increased, and the overall CO distribution in the underground subway station was also increased when the PSD is opened. In addition, the CO distributions due to the opening and closing of the PSD were similar to one another when a fire occurred on the platform, which suggests that the operating conditions of the fan affects the formation of CO distribution in the underground subway station rather than the discharge of CO.

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Optimization of emergency ventilation mode for a train on fire stopping beside platform of a metro station

Cited by 39 publications

References 24 publications

A Review of Ventilation and Environmental Control of Underground Spaces

A Review of Ventilation and Environmental Control of Underground Spaces

Sustainable Urban Planning Technique of Fire Disaster Prevention for Subway

Analysis of Heat and Smoke Flow according to Platform Screen Door and Fan Conditions on Fire in Underground Platform

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