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Automatic fire detection in road traffic tunnels

Aralt, T.T. / Nilsen, A.R.

Fire detection experiments in a road traffic tunnel were performed in the Runehamar test tunnel, NO. The Runehamar test tunnel is a full profile road traffic tunnel, 1.65 km long, located outside Andalsnes, NO. The goal was to examinate smoke and heat detection systems to determinate what kind of principle best suited for detecting a fire in an early stage. The systems were tested during small Heptane pool fires, varying between 0.16 m² and 1 m², giving heat release rates from 0.2 MW to 2.4 MW accordingly, and one car fire of about 3 - 5 MW, and with wind conditions varying from 1.1 m s^-1 to 1.6 m s^-1. The size of the fires were designed to be in the range from impossible to difficult to detect. The results were conclusive. Earliest detection of a car fire, fire starts inside, was by smoke detection given fixed limits (3000 my g m^-3). With open pool fires, or immediate flames, continues fibre optical heat detection systems was faster given the limits 3 deg C/4 min.

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Automatic fire detection in road traffic tunnels

Aralt, T.T. / Nilsen, A.R.

Fire detection experiments in a road traffic tunnel were performed in the Runehamar test tunnel, NO. The Runehamar test tunnel is a full profile road traffic tunnel, 1.65 km long, located outside Andalsnes, NO. The goal was to examinate smoke and heat detection systems to determinate what kind of principle best suited for detecting a fire in an early stage. The systems were tested during small Heptane pool fires, varying between 0.16 m² and 1 m², giving heat release rates from 0.2 MW to 2.4 MW accordingly, and one car fire of about 3 - 5 MW, and with wind conditions varying from 1.1 m s^-1 to 1.6 m s^-1. The size of the fires were designed to be in the range from impossible to difficult to detect. The results were conclusive. Earliest detection of a car fire, fire starts inside, was by smoke detection given fixed limits (3000 my g m^-3). With open pool fires, or immediate flames, continues fibre optical heat detection systems was faster given the limits 3 deg C/4 min.

Automatic fire detection in road traffic tunnels

Aralt, T.T. / Nilsen, A.R.

Fire detection experiments in a road traffic tunnel were performed in the Runehamar test tunnel, NO. The Runehamar test tunnel is a full profile road traffic tunnel, 1.65 km long, located outside Andalsnes, NO. The goal was to examinate smoke and heat detection systems to determinate what kind of principle best suited for detecting a fire in an early stage. The systems were tested during small Heptane pool fires, varying between 0.16 m² and 1 m², giving heat release rates from 0.2 MW to 2.4 MW accordingly, and one car fire of about 3 - 5 MW, and with wind conditions varying from 1.1 m s^-1 to 1.6 m s^-1. The size of the fires were designed to be in the range from impossible to difficult to detect. The results were conclusive. Earliest detection of a car fire, fire starts inside, was by smoke detection given fixed limits (3000 my g m^-3). With open pool fires, or immediate flames, continues fibre optical heat detection systems was faster given the limits 3 deg C/4 min.

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Title:

Automatic fire detection in road traffic tunnels

Additional title:

Automatische Brandanzeige in Straßentunneln

Contributors:

Aralt, T.T. (author) / Nilsen, A.R. (author)

Published in:

Tunnelling and Underground Space Technology ; 24 ; 75-83

Publication date:

2009

Size:

9 Seiten, 16 Quellen

ISSN:

DOI:

https://doi.org/10.1016/j.tust.2008.04.001

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Feuermelder , Brand (Feuer) , Fahrstraße , Staub , Brandortung , Tunnel , Tunnelausbau , Brandmeldetechnik , Brandschutz , Brandverhalten , Versuch , Versuchsanordnung

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