Study of alternative jet fuel ignition behavior in gas turbine combustion environments
Trotter, Caleb Joseph
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https://hdl.handle.net/2142/120405
Description
Title
Study of alternative jet fuel ignition behavior in gas turbine combustion environments
Author(s)
Trotter, Caleb Joseph
Issue Date
2023-05-01
Director of Research (if dissertation) or Advisor (if thesis)
Lee, Tonghun
Department of Study
Mechanical Sci & Engineering
Discipline
Mechanical Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Gas turbine combustion
alternative aviation fuels
Abstract
The development and study of alternative aviation fuels is influential in the creation of a more sustainable future. Characterization of the behavior of these alternative fuels is a rigorous process and requires precise experimentation in specific operational regimes. These experiments utilize the ARC-M1, a small-scale gas turbine combustor developed in conjunction with engine OEMs to replicate key geometric features of helicopter-size gas turbine combustors while offering optical access to allow for the application of diagnostic techniques. Ignition tests at a relevant altitude condition are performed with four different fuels including a standard military-grade jet fuel and four C-grade alternatively derived jet fuels. Measurements of ignition probability are presented and a first order qualitative analysis of chemiluminescence imaging to understand the overall heat release rate of the flame and phase-contrast imaging to investigate droplet behavior is included. Results demonstrate the effects of fuel properties on the ignition process and suggest that further investigation and quantitative image analysis could potentially lead to a deeper understanding of the physics involved in the ignition behavior of alternative fuel sources.
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