combustion chamber 1/5
TRANSCRIPT
Also known as the combustor, burner, flame
holder
Intro Process Fuel Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER
ocation
ltypically located directly between the compressor
diffuser and turbine section
Intro Process Fuel Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER
omponents
C
Intro Process Fuel Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER
ir Flow Types
A Primary Cooling Intermedia
te DilutionIntro Process Fuel
Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER
Intro Process Fuel Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER
Intro Process Fuel Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER
Primary Air= approximately 25% of
total air
Remaining 75%= used to form an air
blanket around the burning gases and to lower the temperatureIntro Process Fuel
Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER
• Cooling Air drops the temperature to a value that
the turbine inlet guide vanes can withstand
• Cooling air is “secondary” air
(controlled and directed by holes and louvers)
The air used for burning fuel is “primary” air.
Intro Process Fuel Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER
• Continuous airflow helps prevent CARBON
from forming on the inside of the liner• Carbon deposits can
cause HOT SPOTS, block cooling air
passages, which then shortens burner life
Intro Process Fuel Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER
urposeP
Intro Process Fuel Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER
• Blends air and fuel proficiently
• Controls the burning of large amounts of fuel and air efficiently
• Dampens the hot combustion gases
• Ensures that the air is expanded and accelerated
** must be accomplished with minimum pressure loss and
maximum heat release
Intro Process Fuel Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER
Combustors play a crucial role in
determining many of an engines operating
characteristics, such as •fuel efficiency, •levels of emissions and •transient response (the response to changing conditions such a fuel flow and air speed)
Intro Process Fuel Supply Types MaterialsIntro Process Fuel
Supply Types MaterialsAE 424AE 424COMBUSTION CHAMBERCOMBUSTION CHAMBER