Numerical Study on the Impact of Platform Screen Doors in a Subway Station with a Train on Fire
Almost all recently built subway stations are equipped with Platform Screen Doors (PSDs) due to the numerous proven benefits of these systems. In addition, PSDs are now being introduced in existing subway stations, but their operation in conjunction with previously designed ventilation systems in ca...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/16/8296 |
| _version_ | 1797432528527687680 |
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| author | Catalin Ioan Teodosiu Vladimir Francisc Kubinyecz |
| author_facet | Catalin Ioan Teodosiu Vladimir Francisc Kubinyecz |
| author_sort | Catalin Ioan Teodosiu |
| collection | DOAJ |
| description | Almost all recently built subway stations are equipped with Platform Screen Doors (PSDs) due to the numerous proven benefits of these systems. In addition, PSDs are now being introduced in existing subway stations, but their operation in conjunction with previously designed ventilation systems in case of emergency should be deeply studied. In this context, the objective of this study is to assess the efficiency of the planned emergency strategy (coupled operation, ventilation systems–PSDs system) in the case of trains on fire stopped at the platform of a subway station retrofitted with PSDs. The approach is based on Computational Fluid Dynamics (CFD) full-scale simulations to predict the airflow, temperature, and pollutant (carbon monoxide—CO and carbon dioxide—CO<sub>2</sub>) concentrations caused by the fire. The results show the evident contribution of PSDs in stopping the dispersion of hot and polluted air in the subway station during the entire simulation time (20 min from the arrival of the train on fire). Consequently, the investigated emergency strategy (exhausting air both through the “over track system” and the “under platform system”, simultaneously with the opening of the PSDs on the side with the train on fire) assures the safe evacuation of passengers as soon as they have left the subway train. The results indicate that access to the platform is not perturbed by high temperatures or dangerous concentrations of CO and CO<sub>2</sub>. |
| first_indexed | 2024-03-09T10:01:58Z |
| format | Article |
| id | doaj.art-d7a46b4d215e4c28a59056ed2776e2eb |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T10:01:58Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-d7a46b4d215e4c28a59056ed2776e2eb2023-12-01T23:22:25ZengMDPI AGApplied Sciences2076-34172022-08-011216829610.3390/app12168296Numerical Study on the Impact of Platform Screen Doors in a Subway Station with a Train on FireCatalin Ioan Teodosiu0Vladimir Francisc Kubinyecz1CAMBI Research Center, Technical University of Civil Engineering Bucharest, 021414 Bucharest, RomaniaCAMBI Research Center, Technical University of Civil Engineering Bucharest, 021414 Bucharest, RomaniaAlmost all recently built subway stations are equipped with Platform Screen Doors (PSDs) due to the numerous proven benefits of these systems. In addition, PSDs are now being introduced in existing subway stations, but their operation in conjunction with previously designed ventilation systems in case of emergency should be deeply studied. In this context, the objective of this study is to assess the efficiency of the planned emergency strategy (coupled operation, ventilation systems–PSDs system) in the case of trains on fire stopped at the platform of a subway station retrofitted with PSDs. The approach is based on Computational Fluid Dynamics (CFD) full-scale simulations to predict the airflow, temperature, and pollutant (carbon monoxide—CO and carbon dioxide—CO<sub>2</sub>) concentrations caused by the fire. The results show the evident contribution of PSDs in stopping the dispersion of hot and polluted air in the subway station during the entire simulation time (20 min from the arrival of the train on fire). Consequently, the investigated emergency strategy (exhausting air both through the “over track system” and the “under platform system”, simultaneously with the opening of the PSDs on the side with the train on fire) assures the safe evacuation of passengers as soon as they have left the subway train. The results indicate that access to the platform is not perturbed by high temperatures or dangerous concentrations of CO and CO<sub>2</sub>.https://www.mdpi.com/2076-3417/12/16/8296Computational Fluid Dynamics (CFD) modelingsubway fireemergency ventilationPlatform Screen Doors (PSDs) |
| spellingShingle | Catalin Ioan Teodosiu Vladimir Francisc Kubinyecz Numerical Study on the Impact of Platform Screen Doors in a Subway Station with a Train on Fire Applied Sciences Computational Fluid Dynamics (CFD) modeling subway fire emergency ventilation Platform Screen Doors (PSDs) |
| title | Numerical Study on the Impact of Platform Screen Doors in a Subway Station with a Train on Fire |
| title_full | Numerical Study on the Impact of Platform Screen Doors in a Subway Station with a Train on Fire |
| title_fullStr | Numerical Study on the Impact of Platform Screen Doors in a Subway Station with a Train on Fire |
| title_full_unstemmed | Numerical Study on the Impact of Platform Screen Doors in a Subway Station with a Train on Fire |
| title_short | Numerical Study on the Impact of Platform Screen Doors in a Subway Station with a Train on Fire |
| title_sort | numerical study on the impact of platform screen doors in a subway station with a train on fire |
| topic | Computational Fluid Dynamics (CFD) modeling subway fire emergency ventilation Platform Screen Doors (PSDs) |
| url | https://www.mdpi.com/2076-3417/12/16/8296 |
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