Tunnels & Metros
Specialist systems for Rail & Metro, Road transverse, semi-transverse and Road longitudinal applications, with over 100 years of experience
Light at the end of the tunnel
FläktGroup provides general ventilation and high temperature smoke extract solutions for:
- Road tunnels,
- Rail tunnels
- Metros systems
- Service tunnels
- Cable tunnels
FläktGroup products have been installed in underground structures throughout the world and the technology, innovation and efficiency of our Large JM product range is unrivalled.
Effective ventilation is an essential requirement for life support underground.
Toxic and inflammable gases must be diluted to a safe level; dust and smoke dispersed; excessive heat should be relieved; and escape routes must be kept clear from smoke. Pollution emitted by trains and road vehicles must be removed to provide an acceptable and safe environment. The heat from a train may need to be removed by forced ventilation to ensure that the temperature is acceptable to both people and equipment.
Length of exposure and concentration of carbon monoxide are the important factors in the progressive effects of loss of alertness, headache and unconsciousness. Other products of car exhausts such as nitrogen and sulphur oxides can also have negative health effects of drivers.
As vehicles become cleaner and more efficient and alternative fuel sources become more common, the day to day ventilation requirement for tunnels will change meaning far more focus is required on the fire safety element of tunnel ventilation for the long term safety of users.
Tunnel Ventilation Design & CFD Analysis
FläktGroup has a design and CFD Centre of Excellence based in the UK, supported by local specialists. The Design team are focused on delivering the optimum design, tailored to local regulatory requirements, optimising air quality, fire safety, installed cost and full life cycle costs.
Pressure Drop Calculations & Validation of Noise Calculations
Our engineering department are able to assist in making sure all calculations are correct and the products selected meet all requirements.
Factory Acceptance Testing
FAT's are conducted at our tunnelling Centre of Excellence in the UK. Our dedicated lab conducts regular FAT's for our clients all over the world. This also gives our customers the opportunity to inspect the factory and understand the manufacturing process so they can have confidence in our solution.
Fan Installation Guidance & Commissioning Assistance
Due to the bespoke nature of tunnel ventilation design, we provide extensive support (including on-site) for the installation and commissioning phase.
Global Coverage & Support Service
We have a global network of FläktGroup operating companies and local parnters with extensive tunnel ventilation experience all supported by the dedicated project management team in the UK.
After Sales Support & Warranty
FläktGroup are on hand for support through every stage. Right from the design stage through to installation and beyond. We're always happy to help from our Centre of Excellence in the UK to our extended network throughout the world.
Tunnels & Metros
CE Marked Safety Critical Ventilation Products
We can offer one of the most comprehensive ranges of CE Marked Safety Critical Ventilation Products available in the world.
- Optimised layout design for Energy Efficiency, Velocity Pressure effect & Acoustic Performance.
- Coordinated component effect on system: Silencer + Transform + Damper
- Utilising Plantroom Space via Innovative “IMI” design
- Pulse pressure allowance
- Robust design & solution
- Spatial Coordination using 3D Modelling
- Acoustic Supply & Design Support
Road tunnels require ventilation to prevent the build up of vehicle exhaust fumes and maintain air quality for occupants.
Rail tunnels must be ventilated to remove the dangerous build-up of pollutants, reduce the risks of smoke during a fire and to remove the heat generated by the trains and other electrical equipment.