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Powerplant Fire
Protection System
1 © Devinder K Yadav
System Overview
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Fire Detection Methods
•Rate of Temperature Rise Detector •Smoke Detector •Overheat Detector •Observation of Crew or Passenger
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Fire Detection Systems
• Thermal switch system • Thermocouple system • Continuous loop detector system (Used in turbine engines of large transport aircraft)
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Fire Detection Systems Thermal switch system: It uses a bimetallic thermostat switch or spot detector.
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Fire Detection Systems
Thermocouple system: Works on rate of temperature rise. Does not give warning when an engine slowly overheats.
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Continuous - loop detector system In case of fire, the core resistance drops and current flows between the signal wires and the ground, energising the alarm system
Fire Detection Systems
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Continuous - loop detector system
Fire Detection Systems
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Fire Protection Systems
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A Typical Fire Detection Systems
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Fire System Warnings
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Fire Warning
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Loop Warning
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Fire Warning Schematic
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Fire Warning Schematic
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Fire Extinguishing Systems
Types of fires
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Fire Extinguishing Systems
Types of extinguishing systems High Rate of Discharge (HRD) System: Provide high discharge rate through high pressurisation, short feed lines, large discharge valves and outlets. Extinguishing agent is released into the zone in one second or less. Conventional System System is designed around a cylinder that stores the CO2 under pressure and a remote control valve assembly in the cockpit to distribute the extinguishing agent to the engine.
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Conventional System CO2 cylinder
Fire Extinguishing Systems
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Fire Extinguishing Systems
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Typical Fire Extinguishing Systems
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Typical Fire Extinguishing Systems
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Typical Fire Extinguishing Systems
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Typical Fire Extinguishing Systems Schematic
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