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Fixed fire fighting systems in road tunnels: an overview of current research, standards and attitudes
2009 (English)Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The way of looking at the use of Fixed Fire Fighting Systems (FFFS) in road tunnels in Europe has changed during recent years due to several catastrophic tunnel fires (CTF). Tests have been conducted which have proven some statements from the past to be wrong but this is still a field that has to be studied further to gain a more accepted status in Europe. When installing a water based FFFS in a road tunnel it is important to understand that the system’s objective is to suppress or control the fire and not necessarily to extinguish it. Furthermore, the engineer must have an understanding on how the FFFS will do this. Smaller droplets will attack the flame and larger droplets will attack the fuel. This knowledge is important for example concerning hazardous goods. The FFFS should be designed so that it operates together with the ventilation system to get maximum effect on suppress or control abilities and the possibilities for self evacuation. Standards and guidelines to be used regarding FFFS in road tunnels are the national standards combined with NFPA 502 and the guidance published by UPTUN. Japan and Australia are two countries with experience of using FFFS in road tunnels. Especially Japan has a long experience with FFFS using it for about four decades. Europe has a lot to learn from these countries not only when it comes to the use of FFFS in road tunnels but also on how to regard its role in general.

Place, publisher, year, edition, pages
Keyword [en]
Technology, road tunnels, tunnel fires, Fixed Fire Fighting Systems, sprinklers, water sprays, water mist systems
Keyword [sv]
URN: urn:nbn:se:ltu:diva-52743ISRN: LTU-DUPP--09/113--SELocal ID: 9d7d8880-7940-4dcb-bd2f-aacd6b0021b4OAI: diva2:1026115
Subject / course
Student thesis, at least 15 credits
Educational program
Fire Protection Engineer, bachelor's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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