Pyrogen Fire Suppression System
How Pyrogen Works
is a Pyrotechnically Generated aerosol fire suppression system.
The principal chemical is a derivative of rocket fuel and was first
developed by the Russian space program. It came to market
through civilian applications of military technology. Once the
solid fuel derivative is ignited it passes through a solid chemical
used to cool the flame as it decomposes from heat. This insures
rapid expulsion and flameless operation.
Once the aerosol exits the canister it produces a gas-like
firefighting aerosol with 3 dimensional distribution. And
holding times up to 60 minutes.
Pyrogen has multiple triggering capabilities:
1-Electrical automatic via detection system
2-Manual via manual release point
3-Thermal via temperature sensitive pyrotechnic cord
The aerosol is comprised of solid potassium carbonates, carbon dioxide
gas, nitrogen gas, and water vapor. This gives the aerosol the
ability to consume 400 calories of heat per kilogram of their mass.
Thus having a cooling effect of 400° per second.
The benefit of these micron sized particles are:
Large Surface Area for Extinguishing Action
Small Amount Required for Reliable Area Coverage
Gas-Like 3 Dimensional Distribution
Long Suspension Times
Fire Has Three
Fuel; Heat; Oxygen
Carriers (Oxygen, Hydrogen, Oxygen diHydride
Extinguishing Action of Pyrogen is
Primarily Chemical by Removing the Chain Carriers and
Secondarily by Absorbing Heat.
Potassium is the key. The Oxygen and Hydrogen attach to
Potassium and the fire looses the ability to continue.