Abstract

The fuel atomizer of a gas turbine engine is a critical component of study, design, and manufacture for the gas turbine industry. Modern engines rely on consistent precise operation of fuel nozzles to achieve today’s progressive emission standards and to keep engines operating longer and to keep them overall more competitive. The previous research into this field is extensive but has left a gap where relatively computationally simple methods can be used to benefit companies that build aerospace fuel nozzles. Through simulation and experimentation, the goal of this research was to create a method of modeling aerospace fuel nozzle flow metering valves that is less computationally intense than complex CFD and generates high resolution information for the design and manufacture of said valves. A system was developed in MATLAB and Simulink with the intent of matching the valve system and its outputs to an experimental setup. This paper primarily evaluates the simulation methods’ accuracy, experimental methods used and the use of cost analysis for optimization. Through experimentation and simulation optimization a relatively accurate simulated system is generated that matches valve stroke and flow output relatively well. Cost analysis optimization methods failed to establish accurate results and several theories as to why this happened were generated and discussed.

Library of Congress Subject Headings

Airplanes--Fuel systems--Computer simulation; Fuel--Fluid dynamics--Computer simulation; Valves--Design and construction; Gas-turbines--Fuel

Publication Date

5-2-2019

Document Type

Thesis

Student Type

Graduate

Degree Name

Mechanical Engineering (MS)

Department, Program, or Center

Mechanical Engineering (KGCOE)

Advisor

Jason Kolodziej

Advisor/Committee Member

Michael Schrlau

Advisor/Committee Member

Mario Gomes

Campus

RIT – Main Campus

Plan Codes

MECE-MS

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