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Effects of Using Hydrogen on Aero Gas Turbine Pollutant Emissions, Performance and Design

[+] Author Affiliations
Fredrik Svensson

Swedish Defense Research Agency, Stockholm, Sweden

Riti Singh

Cranfield University, Cranfield, Bedfordshire, UK

Paper No. GT2004-53349, pp. 107-116; 10 pages
  • ASME Turbo Expo 2004: Power for Land, Sea, and Air
  • Volume 2: Turbo Expo 2004
  • Vienna, Austria, June 14–17, 2004
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4167-7 | eISBN: 0-7918-3739-4
  • Copyright © 2004 by ASME


The majority of scientists today are in agreement that discharging greenhouse gases into the atmosphere has an impact on the global climate. Furthermore, the dwindling fossil oil resources raise concerns. Finding an alternative to kerosene for civil aviation is thus essential. Taking a completely new approach for civil aviation by fuelling with liquid hydrogen would enable compatibility with the environment. This paper covers the main effects on aero engines when changing to hydrogen fuel. Particularly, emission and performance issues are discussed, but some design matters are also briefly covered. The study shows that burning hydrogen in an aero gas turbine seems to be feasible from a technical point of view. By simply changing to hydrogen, small performance gains may be obtained. The results of the calculations suggest that there is the potential to design a combustion system using hydrogen that produces less NOx emissions than any system using kerosene.

Copyright © 2004 by ASME



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