ENVIRONMENTAL CONSEQUENCES AND RISK FACTORS AFTER A FIRE IN A ROAD TUNNEL

Autor/autori: Silviu CODESCU, Alexandru CHISACOF, Ion ANGHEL, V. PANAITESCU

Abstract: Nowadays the world is facing increasly road traffic, due to high number of cars running on the street ant not highways. This is, unfortunately a very important source of pollution for the environment. Although there are many laws and projects, discussions and rules regarding environmental protection. The pollution from automotive industry mainly, for at least few decades, one of the major challenge for the next generation. In this context, the closed and semi-closed spaces will be affected by this kind of the pollution. Road tunnels can be framed in the category above mentioned, being exposed to a high traffic, because most of them are 20-30 years old and were built for the traffic estimated of those times. A simulation using Pyrosim software is based on the physical model in which one electrical fault accident involving a car appear. The accident, consisting in a fire event at one stationary car, is modeled at 1.5 m from height. Considering an electrical fault followed by a fire, we obtained temperature and CO2 fields depending on time in this tunnel. These information allow us to realize an appropriate impact on the event in aim of minimizing the time for a promptly intervention. Also, with these size field parameters we may check even fresh air flux that can be dislocated

Keywords: environmental pollution, road tunnel fire, heat release, Pyrosim software

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