Aerodynamics, Ventilation & Fire in Tunnels 2017
On the 13th of september, FESG presented their work on the 17th International Symposium on Aerodynamics, Ventilation & Fire Tunnels (ISAVFT 2017 in Lyon, France).
FESG had the opportunity to share knowledge about the state of the art in tunnel’s ventilation. There were many interesting topics, including:
- Interaction between designers and fire services
- New energy carriers and how to implement them in fire risk analysis
- Interaction between ventilation and suppression in underground structures
- Optimising ventilation strategies in order to limit evacuation times
The conference allowed FESG to be challenged on their methodology and solutions by other world leading experts. This allows FESG to continuously provide its clients with new and cost-effective solutions.
The paper was a joint collaboration between FESG and Agentschap Wegen en Verkeer and discussed the upgrade of the ventilation system in the Craeybeckxtunnel in Antwerp (BE). The design was innovative in the way the whole tunnel was put in underpressure in order to limit the life cycle cost by avoiding the need of overpressure systems in emergency stair cases. The use of 3D and 1D simulations for the analysis of the ventilation system was necessary due to the complexity of the setup. Several batteries of jet fans were provided and in order to take the mutual effect in terms of efficiency 3D calculations were necessary.
FESG is satisfied by the validation of their work by other international experts and looks forward to apply similar methodologies in tunnel, metro and car park projects.
FESG present at Norwegian Tunnel Safety Conference
On September 7th and 8th, FESG was present at the Norwegian Tunnel Safety Conference in Stavanger, Norway. The design of existing and new tunnels is a welcomed service for the Norwegian market: a large number of tunnels are to be built in the coming years (e.g. 300 km of tunnel on E39 project at the west coast); specific challenges associated with long tunnels (e.g. 27 km) and deep fjords (e.g. 300 m deep) give value to validated calculation tools; more than 1000 existing tunnels need to be analysed by means of risk analyses; a large amount of existing tunnels with bidirectional traffic in single tubes give limited possibilities regarding evacuation; a lot of optimisations possible. After 2 successful days, FESG was asked to give a 2-hour presentation to 40 fire safety engineers of a respected international consultancy. In this presentation,…Read more
Preliminary advice from the fire service for industrial buildings
Did you know that the new planning permission guidelines require preliminary advice from the fire service for class B and class C industrial buildings? The fire service has up to 45 days to respond, which could mean a delay of 45 days to your project. FESG can advise you on the fire class of your project by carrying out a fire load calculation. For many industrial projects, we are able to establish that your building is a fire class A building, in which case preliminary advice from the fire service is not necessary. Determining your fire strategy in the early phases also helps to avoid the need for retrospective modifications or delays to your project. If fire safety aspects are only taken into account when the design has been finalised, or after implementation, modifications such as additional compartmentalisation or sprinkler systems will…Read more
FESG attends the Nordic Fire & Safety Days 2017Read more