Ventilation of underground car parks
Ventilation and extraction in underground car parks are becoming increasingly important, and not just for fire safety reasons. Traditional smoke extraction systems with duct networks are increasingly being replaced by jet fan smoke extraction systems. These offer a more efficient, flexible, and cost-effective solution for smoke control in the event of a fire.
In addition to their primary function as smoke extraction systems, these systems significantly accelerate the smoke extraction rate – a crucial factor in minimising damage and ensuring the safety of human life.
Jet fan smoke extraction systems fulfill two important objectives:
- Life safety:
The jet fans keep smoke in specific areas, ensure clear escape routes, and enable the safe evacuation of occupants. - Efficient firefighting:
By controlling smoke movement and improving visibility, jet fans allow firefighters to quickly access the source of the fire and intervene effectively.
Functional principle
The core principle of a jet fan system is to generate a controlled air flow that directs smoke to the exhaust openings (shafts). Jet fan systems generate an impulse at strategic points that directs smoke to the extraction points and at the same time distributes fresh air evenly throughout the interior.
System components
A complete jet fan smoke exhaust system consists of:
- Main exhaust fans and shafts – for efficient smoke removal from the building
- Jet fan systems – available in various geometries (oval, round, polygonal, etc.) for optimum performance and aesthetics.
- Fresh air intakes and fresh air dampers – for supplying and regulating the fresh air supply.
- Smoke dampers and main control panels – for coordinated and safe operation of the entire system.
- Smoke dampers and main control panels – for coordinated and safe operation of the entire system.
Advantages of jet fan systems
- Space-saving design – eliminates the need for extensive ductwork
- Faster smoke removal – reduces smoke stratification and shortens evacuation times.
- Cost efficiency – lower installation costs and easier maintenance.
- Flexible and visually optimised solutions – various jet fan designs that integrate seamlessly into architectural elements without compromising airflow performance.
Together with our associate company AIRONN, we offer not only high-performance jet fans, but also comprehensive engineering services tailored to the requirements of each project.
Whether in underground car parks of shopping malls, airports or tower blocks, CFT Jet Fan smoke extraction solutions from the AIRONN brand contribute to safe environments
by improving fire protection and operational safety.
