Model Simulation and Design Optimization of a Can Combustor with Methane/Syngas Fuels for a Micro Gas Turbine

Chi Rong Liu, Ming Tsung Sun, Hsin Yi Shih*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

4 Scopus citations


The design and model simulation of a can combustor has been made for future syngas combustion application in a micro gas turbine. An improved design of the combustor is studied in this work, where a new fuel injection strategy and film cooling are employed. The simulation of the combustor is conducted by a computational model, which consists of three-dimensional, compressible k-ϵ model for turbulent flows and PPDF (Presumed Probability Density Function) model for combustion process invoking a laminar flamelet assumption generated by detailed chemical kinetics from GRI 3.0. Thermal and prompt NOx mechanisms are adopted to predict the NO formation. The modeling results indicated that the high temperature flames are stabilized in the center of the primary zone by radially injecting the fuel inward. The exit temperatures of the modified can combustor drop and exhibit a more uniform distribution by coupling film cooling, resulting in a low pattern factor. The combustion characteristics were then investigated and the optimization procedures of the fuel compositions and fuel flow rates were developed for future application of methane/syngas fuels in the micro gas turbine.

Original languageEnglish
Pages (from-to)85-99
Number of pages15
JournalInternational Journal of Turbo and Jet Engines
Issue number1
StatePublished - 01 03 2021

Bibliographical note

Publisher Copyright:
© 2018 Walter de Gruyter GmbH, Berlin/Boston 2018.


  • design optimization
  • gas turbine combustion
  • micro gas turbine
  • syngas combustion


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