A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Positive pressure ventilation an emergency ventilation technique for highway, rail, and subway tunnel fires
Positive Pressure Ventilation (PPV) is a fire fighting technique that uses high-powered blowers to remove the hostile interior environment of an enclosed structure and replace it with fresh, ambient air. Its purpose is to increase safety for fire fighters and rescue personnel, enhance the speed of fire fighting and rescue operations, and lessen property damage caused by smoke, heat, and fire. Over the past four years, PPV has been proven effective for ventilation of highway tunnels, railway tunnels, and subway tunnels. The techniques of PPV are applied with the use of a larg diameter (1200 mm - 1800 mm), truck-mounted blower called a Mobile Ventilation Unit (MVU). Because the MVU is located outside of the tunnel during ventilation operations, it is not subjected to the extreme conditions that exist inside a tunnel during a fire. If a fixed system happens to fail due to prolonged exposure to extreme heat, the MVU is still capable of providing effective ventilation for fire fighters access and rescue. Additionally, it is possible to calculate the size and quantity of mobile ventilation units required for specific tunnel to ensure that adequate ventilation is achieved.
Positive pressure ventilation an emergency ventilation technique for highway, rail, and subway tunnel fires
Positive Pressure Ventilation (PPV) is a fire fighting technique that uses high-powered blowers to remove the hostile interior environment of an enclosed structure and replace it with fresh, ambient air. Its purpose is to increase safety for fire fighters and rescue personnel, enhance the speed of fire fighting and rescue operations, and lessen property damage caused by smoke, heat, and fire. Over the past four years, PPV has been proven effective for ventilation of highway tunnels, railway tunnels, and subway tunnels. The techniques of PPV are applied with the use of a larg diameter (1200 mm - 1800 mm), truck-mounted blower called a Mobile Ventilation Unit (MVU). Because the MVU is located outside of the tunnel during ventilation operations, it is not subjected to the extreme conditions that exist inside a tunnel during a fire. If a fixed system happens to fail due to prolonged exposure to extreme heat, the MVU is still capable of providing effective ventilation for fire fighters access and rescue. Additionally, it is possible to calculate the size and quantity of mobile ventilation units required for specific tunnel to ensure that adequate ventilation is achieved.
Positive pressure ventilation an emergency ventilation technique for highway, rail, and subway tunnel fires
Positive Pressure Ventilation (PPV) - ein Notfall-Belüftungssystem für Straßen-, Eisenbahn- und U-Bahntunnelbränden
Bader, J. (author) / Coffman, L.B. (author)
2002
8 Seiten, 4 Bilder, 3 Quellen
Conference paper
English
Newark City Subway: Emergency Ventilation System
| British Library Conference Proceedings | 1998
Impulse and jet fan application to assist emergency ventilation in case of subway fires
| British Library Conference Proceedings | 2000
Preventing urban tunnel fires becoming disasters - emergency operations and ventilation management
| British Library Conference Proceedings | 2006
Subway station ground ventilation pavilion for rail transit
| European Patent Office | 2021