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Implication of Different Fuel Injector Configurations for Hydrogen Fuelled Micromix Combustors

[+] Author Affiliations
Bhupendra Khandelwal, Yingchun Li, Priyadarshini Murthy, Vishal Sethi, Riti Singh

Cranfield University, Cranfield, Bedfordshire, UK

Paper No. GT2011-46845, pp. 293-298; 6 pages
  • ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition
  • Volume 4: Cycle Innovations; Fans and Blowers; Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine; Oil and Gas Applications
  • Vancouver, British Columbia, Canada, June 6–10, 2011
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-5464-8
  • Copyright © 2011 by ASME


A design of a hydrogen fuelled micromix concept based combustor is proposed in this paper. The proposed micromix concept based combustor yields improved mixing, which leads to wider flammability range of the hydrogen-air flames compared to conventional kerosene and micromix concept based combustors. This improved mixing allows the combustion zone to operate at a much lower equivalence ratio than the conventional kerosene based and micromix concept based combustors considered in this study. Furthermore, when burning hydrogen the thermal energy radiated to the surroundings is lower (as the result of using lower equivalence ratio) than that of kerosene, consequently resulting in an increased liner life and lower cooling requirement. The aim of this paper is to highlight the impact of using hydrogen as a fuel in gas turbine combustors. It is perceived that this new micromix concept based combustor would also help in achieving low emissions and better performance. Possibilities for lowering NOx emissions when using hydrogen as a fuel in new designs of micromix combustor are also discussed.

Copyright © 2011 by ASME



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