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Sea Level Performance of a CF-700 Engine Core With Alternative Fuels

[+] Author Affiliations
Craig R. Davison, Pervez Canteenwalla, Jennifer L. Y. Chalmers, Wajid A. Chishty

National Research Council Canada, Ottawa, ON, Canada

Paper No. GT2015-42230, pp. V003T03A002; 10 pages
  • ASME Turbo Expo 2015: Turbine Technical Conference and Exposition
  • Volume 3: Coal, Biomass and Alternative Fuels; Cycle Innovations; Electric Power; Industrial and Cogeneration
  • Montreal, Quebec, Canada, June 15–19, 2015
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-5667-3
  • Copyright © 2015 by Her Majesty the Queen in Right of Canada


The use of alternative fuels has the potential to enhance energy independence and reduce environmental impact of air travel. It is important to characterize gas turbine operation using such fuels under controlled conditions before implementing them in flight. The performance of a CF-700 engine core was examined in a sea level test facility. The following fuels were tested and will be reported on:

1. Jet A-1 – baseline fuel

2. 100% unblended Hydroprocessed Esters and Fatty Acids (HEFA) synthetic kerosene fuel with aromatics (SKA)

3. 100% unblended Fischer-Tropsch (FT) synthetic paraffinic kerosene (SPK)

4. Blended 50% HEFA-SPK and 50% Jet A-1

Fuel 2 above is an alternative fuel that can potentially be used without blending with conventional fuel. One purpose of the static engine testing was to determine if this fuel was suitable for use on subsequent test flights in a Dassault Falcon 20 aircraft. Engine performance testing was conducted at various power settings for each fuel. Relevant plots of performance are presented, compared and discussed. Transient tests were also performed including slams and chops. Observations of the effects of the different fuels on the engine fuel system are presented as some alternative fuels have the potential to cause seals to shrink and leaks to occur. The leaks observed are noted as are the steps taken to mitigate the problem.

Copyright © 2015 by Her Majesty the Queen in Right of Canada
Topics: Fuels , Engines , Seas



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