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COURSE CONTENT

FUNDAMENTALS OF COMBUSTION

  • Classification of flames.  Factors influencing laminar flame speed.  Turbulent flames.
  • Flammability limits, stoichiometry, flame temperature, and chemical dissociation.
  • Chemical kinetics.  Stirred reactor theory, reaction rate parameters applicable to practical combustion systems.
  • Evaporation of single fuel drops and fuel sprays.

GAS TURBINE COMBUSTION

  • Basic design features and types of combustion chambers; relative merits of tubular, tubo-annular, and annular chambers.
  • Performance criteria:  Combustion efficiency, stability, ignition performance, temperature traverse quality, and exhaust emissions.
  • Applications of combustion theory in design and performance assessment; relationship between performance, and pressure loss.
  • Combustion chamber aerodynamics:  Diffuser performance and design, hole discharge coefficients, jet penetration, and mixing.
  • Fuel preparation:  Pressure atomizers, vaporizing systems, airblast atomizers, and effervescent atomizers.
  • Fundamentals of gas turbine ignition.  The three-stage concept of ignition; design requirements for high-altitude relight capability.

LOW EMISSIONS GAS TURBINE COMBUSTION

  • Mechanism of carbon formation; influence of fuel properties, atomizer characteristics, and combustor design on exhaust smoke.
  • Gaseous pollutants; formation of unburned hydrocarbons, carbon monoxide, and oxides of nitrogen.  Methods of pollution control; variable geometry, staged, and premix/prevaporizing combustors.
  • Design of combustors for low- NOx emissions.  Regulatory history and current forcing functions for advanced technologies.

EXPERIMENTAL METHODS

  • Model combustors, optical and conventional diagnostics, spray characterization, high pressure and temperature experiments.
  • Tour of the UCI Combustion Laboratory research test cells and support facilities.

COMPUTATIONAL METHODS

Current, state-of-the-art, and advanced computational methods for gas turbine combustors.

 

 

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