A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Airflow measurement in road tunnels
Reliable and accurate monitoring and control of the longitudinal air speed is necessary in road tunnels equipped with exhaust dampers, used for concentrated smoke extraction, and in longitudinally ventilated tunnels where in the event of fire tunnel users can be located on both sides of the fire. The system's scope is to prevent an uncontrolled propagation of smoke and to improve the self-rescue conditions of the tunnel users. In order to allow airflow control within narrow tolerances inside the tunnel, it is necessary to provide reliable and accurate measurements of the air speed, being used as input to a closedloop control system of the ventilation equipment that regulates the air speed at the incident location. The objective of the research project funded by the Federal Roads Office (FEDRO) was to compare different measurement techniques, consisting of a dynamic pressure head measuring system, two ultrasonic line measurement systems and three ultrasonic point measurement systems. A thorough field study has been conducted, which was funded by the FEDRO.
Airflow measurement in road tunnels
Reliable and accurate monitoring and control of the longitudinal air speed is necessary in road tunnels equipped with exhaust dampers, used for concentrated smoke extraction, and in longitudinally ventilated tunnels where in the event of fire tunnel users can be located on both sides of the fire. The system's scope is to prevent an uncontrolled propagation of smoke and to improve the self-rescue conditions of the tunnel users. In order to allow airflow control within narrow tolerances inside the tunnel, it is necessary to provide reliable and accurate measurements of the air speed, being used as input to a closedloop control system of the ventilation equipment that regulates the air speed at the incident location. The objective of the research project funded by the Federal Roads Office (FEDRO) was to compare different measurement techniques, consisting of a dynamic pressure head measuring system, two ultrasonic line measurement systems and three ultrasonic point measurement systems. A thorough field study has been conducted, which was funded by the FEDRO.
Airflow measurement in road tunnels
Grässlin, U. (author) / Drost, U. (author) / Nodiroli, G.P. (author)
2014
8 Seiten, Bilder, 3 Quellen
Conference paper
English
Model-based airflow controller design for fire ventilation in road tunnels
| British Library Online Contents | 2016
Model-based airflow controller design for fire ventilation in road tunnels
| Online Contents | 2016
Model-based airflow controller design for fire ventilation in road tunnels
| British Library Online Contents | 2016