HYBRID WATER MIST SYSTEMS
Hybrid Water Mist systems combine inert gas like nitrogen with water to create very small droplets. This process reduces oxygen levels in the protected area, making it ideal for sensitive spaces like computer rooms and data centers. The droplets, smaller than 10 microns, are much smaller than those from traditional systems, improving heat absorption and fire suppression. These systems leave almost no water residue, preventing water damage. Hybrid systems efficiently extinguish fires in large rooms and work well in ventilated areas, overcoming the limitations of traditional water mist systems.
- A clean agent inert gas and water are combined in hybrid water mist systems.
- The nozzle injects an inert gas, usually nitrogen, into the water stream, creating incredibly tiny droplets.
- Hybrid water mist systems offer 50% better heat absorption and 100% extinguishment than conventional water mist systems thanks to their up to 100 times smaller water mist droplets.
- In enclosed spaces, hybrid water mist systems virtually eliminate water residue.
- For hybrid water mist systems, a smoke detection system is necessary. This makes deployment possible quickly.
- As opposed to conventional clean agent systems, there are no room containment problems (applies to both types of water mist systems).
Water extracts heat from the fire. Steam generated from the fire aids in the radiative and convective heat blocking. Momentum is generally lost within a short distance of the nozzle. More efficient for large fire extinguishment. High velocity and low pressure creates a uniform blend of water and nitrogen; water is introduced to a jet stream of nitrogen at supersonic speed, then delivered with the nitrogen into the protected space.
In designing hybrid water mist systems there is a wide range of factors involved that require rigorous calculations, modeling and actual performance testing. From an engineering calculation standpoint, important parameters include:
- Room size and shape
- Location of objects and equipment
- Drop size distribution
- Mass flow rate
- Velocity
- Direction
The good news is AITO has capable technician that can possess the required abilities and information.
