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MTZ industrial

, Volume 6, Issue 1, pp 14–21 | Cite as

GE’s J920 FleXtra Gas Engine for 60 Hz Applications

  • Andreas Birgel
  • Stefan Köberl
  • Christian Trapp
  • Andreas Wimmer
Cover Story High Efficiency
  • 46 Downloads

GE Power has developed a new version of its J920 gas engine, aimed especially at distributed power generation in areas using 60 Hz alternating current. The new 60 Hz version features high electrical efficiency. In addition significant improvements at low emissions were achieved and are seen as possible precursors to engines which will not require exhaust aftertreatment.

Background

Distributed (decentralised) power supply is becoming more and more popular and modern gas engines play a key role in this area by providing high power output at high electrical efficiencies and with low pollutant emissions.

Using advanced technology concepts like two-stage turbocharging with advanced Miller valve timing, a rapid-burn pre-chamber combustion with high air-fuel ratio, cylinder-individual fuel gas admission and in-cylinder pressure-based engine control, GE’s J920 FleXtra gas engine offers one of the highest electrical efficiencies in its class, making it well suited to distributed (decentralised)...

Keywords

Selective Catalytic Reduction Engine Version Brake Mean Effective Pressure Main Combustion Chamber High Electrical Efficiency 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

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    Tinschmann, G.; Birgel. A.; Trapp, C.; Schnessl, E; Redtenbacher, C; Wimmer, A.: Large Gas Engines — 75 mg/Nm3 @ 15%O2 NOx. Engine-Internal Measures or Exhaust Aftertreatment?. 27th CIMAC World Congress on Combustion Engine Technology, 2013, Shanghai, Paper 296Google Scholar
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    Trapp, C.; Birgel, A.; Spyra, N.; Kopecek, H.; Chvatal, D.: GE’s All New J920 Gas Engine a Smart Accretion of Two-Stage Turbocharging, Ultra Lean Combustion Concept & Intelligent Controls. 27th CIMAC World Congress on Combustion Engine Technology, 2013, Shanghai, Paper 289Google Scholar
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    Böwing, R.; Grotz, M.; Lang, J.; Thalhauser, J.; Christiner, P.; Wimmer A.: Potentials for further thermodynamic development of the GE Jenbacher type 6 gas engine. 9th International MTZ Conference, Heavy-Duty, On- and Off-Highway Engines, Saarbrücken 2013Google Scholar
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    Wimmer, A.; Jauk, T.; Schneßl, E.; Winter, H.; Zelenka, J.; Birgel, A.; Trapp, C.: Flammentomographie zur Bewertung des Verbrennungs- und Klopfverhaltens eines hocheffizienten Großmotors. In: Prodeedings 11. Internationales Symposium für Verbrennungsdiagnostik, 1 to 2 July, 2014, Kurhaus Baden-Baden, pp 7–17.Google Scholar
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    Spyra, N.; Trapp, C.; Birgel, A.; Kopecek, H.: GE’s intelligent controls — Der intelligente Weg zur Erhöhung von Leistungsdichte und Wirkungsgrad bei Großgasmotoren. 14th Conference “Der Arbeitsprozess des Verbrennungsmotors”, Graz, 24 to 25 September 2013Google Scholar

Copyright information

© Springer Fachmedien Wiesbaden 2016

Authors and Affiliations

  • Andreas Birgel
    • 1
  • Stefan Köberl
    • 1
  • Christian Trapp
    • 1
  • Andreas Wimmer
    • 2
  1. 1.GE Power’s Distributed Power BusinessJenbachAustria
  2. 2.Graz University of TechnologyGrazAustria

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