Easa part 66 module 15 Gas Turbine Engine CH 11/25.
Introduction to Starting and ignition PDF.
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Two separate systems are needed to make sure that a turbine engine can begin satisfactorily. Firstly, provision should be created for the mechanical device and rotary engine to be revolved up to a speed at that adequate air passes into the combustion system to combine with fuel from the fuel spray nozzles (Part 10).
Secondly, provision should be created for ignition of the air/fuel mixture within the combustion system. throughout engine beginning the 2 systems should operate at the same time,
yet it should even be attainable to motor the engine over while not ignition for maintenance checks and to control solely the ignition for relighting throughout flight (para. 28).
The Jet Engine by Rolls Royce
Chapter 1/25 : Basic mechanics (page 1 to 10)
Chapter 2/25 : Working cycle and airflow (page 11 to 18)
Chapter 3/25 : Compressors (page 19 to 34)
Chapter 4/25 : Combustion chambers (page 35 to 44)
Chapter 5/25 : Turbines (page 45 to 58)
Chapter 6/25: Exhaust system (page 59 to 64)
Chapter 7/25 : Accessory drives (page 65 to 73)
Chapter 8/25 : Basic mechanics (page 73 to 85)
Chapter 9/25 : Lubrication (page 85 to 94)
Chapter 10/25 : Internal air system (page 95 to 120)
Chapter 11/25 : Fuel system (page 121 to 132)
Chapter 12/25 : Starting and ignition (page 133 to 146)
Chapter 13/25 : Ice protection (page 147 to 152)
Chapter 14/25 : Fire protection (page 153 to 158)
Chapter 15/25 : Thrust reversal (page 159 to 168)
Chapter 16/25 : Afterburning (page 169 to 180)
Chapter 17/25 : Water injection (page 181 to 186)
Chapter 18/25 : Vertical/short take-off and landing (page 187 to 198)
Chapter 19/25 : Noise suppression (page 199 to 206)
Chapter 20 & 21 /25 : Thrust distribution & Performance (page 207 to 214)
Chapter 22/25 : Manufacture (page 215 to 228)
Chapter 23/25 : Power Plant Installation (page 229 to 242)
Chapter 24/25 : Maintenance (page 243 to 262)
Chapter 25/25 : Overhaul (page 251 to 264)
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Starting and ignition ( Chapter 11/25 ) PDF.
Licensed Aircraft Engineer
2. The functioning of each systems is co-ordinates throughout a beginning cycle associate degreed their operation is mechanically controlled when the initiation of the cycle by an circuit. A typical sequence of events throughout the beginning of a turbo-jet engine is shown in fig. 11-1. METHODS OF beginning licensed aircraft engineer.
3. The beginning procedure for all jet engines is essentially the identical, however may be achieved by varied strategies. the kind and power supply for the starter varies in accordance with engine and craft needs licensed aircraft engineer.
Some use wattage, others use gas, air or hydraulic pressure, and every has its own deserves. as an example, a military craft needs the engine to be started within the minimum time and, once attainable, to be fully freelance of external instrumentation. a billboard craft, however, needs the engine to be started with the minimum disturbance to the passengers and by the foremost economical means that. Whichever system is employed, responsibility is of prime importance licensed aircraft engineer.
4. The starter should turn out a high torsion and transmit it to the engine rotating assembly during a manner that gives swish acceleration from rest up to a speed at that the gas flow through the engine provides ample power for the engine rotary engine to require over licensed aircraft engineer.
5. the electrical starter is sometimes an on the spot current (D.C.) motor coupled to the engine through a discount gear and ratchet mechanism, or clutch, that mechanically disengages when the engine has reached a self-sufficing speed (fig. 11-2) licensed aircraft engineer.
6. The electrical provide could also be of a high or low voltage and is gone through a system of relays and resistances to permit the complete voltage to be increasingly designed up because the starter gains speed. It additionally provides the ability for the operation of the ignition. The electrical provide is mechanically off once the starter load is reduced when the engine has satisfactorily started or when the time cycle is completed. A typical electrical beginning system is shown in fig. 11-3 licensed aircraft engineer.
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Module 15: Gas Turbine Engine
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