CO2 Fire Extinguishing System Gas Turbine

CO₂ Fire Extinguishing System Gas Turbine Points : CO2 Fire Extinguishing System Gas Turbine Power Plant The carbon dioxide (C0₂) fire extinguishing system extinguishes fire by reducing the oxygen content of the air in the compartment from an atmospheric normal of2I% to less then is 15 percent an insufficient concentration 10 support combustion. The CO₂ is supplied from a group of high pressure cylinders to a distribution supplied from a group of high pressure cylinders to a distribution system which conducts the CO₂ through pipes to discharge nozzles located in the various compartments of the gas turbine package. The release mechanism which opens the CO₂ cylinders and initiates the discharge of CO₂ is located at the cylinder group.

This mechanism is automatically actuated by an electrical signal from the heat sensitive fire detectors which are strategically located in the various compartments of the unit. The system may also be manually actuated in the event of an electric power failure. Actuation of the CO₂ system, either electricity or manually will trip the turbines two separate systems are used, initial discharge and extended discharge within a few second after actuation, sufficient CO₂ is piped from the initial discharge system in to the compartments of the machines to rapidly build up an extinguishing concentration. This concentration is maintained for a pro longed period of time by the gradual addition of more CO₂ from the extend discharge system.

If the CO₂ system is to be effective the compartment panels must be in place and the compartment doors closed. ‘lucre is sufficient CO₂ in the system to compensate for leakage through ventilation openings and unavoidable cracks in the package lagging but there is not enough to allow for uncontrolled escape of CO₂ through open panels or doors.