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Open Access Publications from the University of California

Development of a low swirl injector concept for gas turbines

  • Author(s): Cheng, R.K.
  • Fable, S.A.
  • Schmidt, D.
  • Arellano, L.
  • Smith, K.O.
  • et al.

This paper presents a demonstration of a novel lean premixed low-swirl injector (LSI) concept for ultra-low NOx gas turbines. Low-swirl flame stabilization method is a recent discovery that is being applied to atmospheric heating equipment. Low-swirl burners are simple and support ultra-lean premixed flames that are less susceptible to combustion instabilities than conventional high-swirl designs. As a first step towards transferring this method to turbines, an injector modeled after the design of atmospheric low-swirl burner has been tested up to T=646 F and 10 atm and shows good promise for future development.

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