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Adjustable tunnel dampers - an essential component for smoke-extraction during fires
Reguirements on tunnel ventilation systems (and thus on extraction dampers as well) have become markedly more stringent in the past years, due to increased knowledge and a great deal of experience. In Austria, these requirements (primarily leakproofing and temperature resistance) are defined by the applicable project-inspection directive RVS. However, aspects of flow technology, choice of materials, processing guidelines and experience in technical production must also be taken into account when conceiving, manufacturing and selecting extraction dampers. As the European market's leader in tunnel extraction dampers, Sirocco presents in the first part of this discussion a detailed, practically-oriented look at the way the reguirements are met, indicating the essentials of an extraction damper. During normal operation, the settable extraction damper's suctioning (the aperture angle of which can be reset depending on the distance from the ventilator) is markedly technically advantageous in terms of flow (puls effect). The puls effects have been proved in comprehensive model testing, in which the resistance coefficient of an extraction damper was determined with respect to an aperture angle.
Adjustable tunnel dampers - an essential component for smoke-extraction during fires
Reguirements on tunnel ventilation systems (and thus on extraction dampers as well) have become markedly more stringent in the past years, due to increased knowledge and a great deal of experience. In Austria, these requirements (primarily leakproofing and temperature resistance) are defined by the applicable project-inspection directive RVS. However, aspects of flow technology, choice of materials, processing guidelines and experience in technical production must also be taken into account when conceiving, manufacturing and selecting extraction dampers. As the European market's leader in tunnel extraction dampers, Sirocco presents in the first part of this discussion a detailed, practically-oriented look at the way the reguirements are met, indicating the essentials of an extraction damper. During normal operation, the settable extraction damper's suctioning (the aperture angle of which can be reset depending on the distance from the ventilator) is markedly technically advantageous in terms of flow (puls effect). The puls effects have been proved in comprehensive model testing, in which the resistance coefficient of an extraction damper was determined with respect to an aperture angle.
Adjustable tunnel dampers - an essential component for smoke-extraction during fires
Verstellbare Tunnel-Damper - eine essentielle Komponente für die Rauchabsaugung bei Bränden
Speiser, M. (author)
2002
8 Seiten, 9 Bilder
Conference paper
English
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