Aerospace Propulsion Study For Shenyang Aerospace University by Lale420 (mid_term_9)
23
Powerplant Fire Protection System 1 © Devinder K Yadav
-
Upload
affiliated-corporation-to-help-the-international-students-of-shenyang-aerospace-university -
Category
Engineering
-
view
31 -
download
5
Transcript of Aerospace Propulsion Study For Shenyang Aerospace University by Lale420 (mid_term_9)
Powerplant Fire
Protection System
1 © Devinder K Yadav
System Overview
2
Fire Detection Methods
•Rate of Temperature Rise Detector •Smoke Detector •Overheat Detector •Observation of Crew or Passenger
3
Fire Detection Systems
• Thermal switch system • Thermocouple system • Continuous loop detector system (Used in turbine engines of large transport aircraft)
4
Fire Detection Systems Thermal switch system: It uses a bimetallic thermostat switch or spot detector.
5
Fire Detection Systems
Thermocouple system: Works on rate of temperature rise. Does not give warning when an engine slowly overheats.
6
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
7
Continuous - loop detector system
Fire Detection Systems
8
Fire Protection Systems
9
A Typical Fire Detection Systems
10
Fire System Warnings
11
Fire Warning
12
Loop Warning
13
Fire Warning Schematic
14
Fire Warning Schematic
15
Fire Extinguishing Systems
Types of fires
16
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.
17
Conventional System CO2 cylinder
Fire Extinguishing Systems
18
Fire Extinguishing Systems
19
Typical Fire Extinguishing Systems
20
Typical Fire Extinguishing Systems
21
Typical Fire Extinguishing Systems
22
Typical Fire Extinguishing Systems Schematic
23
