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1. (WO2018082538) METHOD OF OPTIMIZING PREMIX FUEL NOZZLES FOR A GAS TURBINE

Pub. No.:    WO/2018/082538    International Application No.:    PCT/CN2017/108537
Publication Date: Sat May 12 01:59:59 CEST 2018 International Filing Date: Wed Nov 01 00:59:59 CET 2017
IPC: F23R 3/12
F23R 3/16
Applicants: BEIJING HUATSING GAS TURBINE & IGCC TECHNOLOGY CO., LTD
Inventors: BLAND, Robert
BATTAGLIOLI, John
ZHANG, Shanshan
ZHA, Xiaochen
Title: METHOD OF OPTIMIZING PREMIX FUEL NOZZLES FOR A GAS TURBINE
Abstract:
A method of optimizing a premix fuel nozzle (12) for a gas turbine is provided. When the gas turbine is in operation, the nozzle (12) comprises an axial flow field of air and fuel mixture flowing through a burner tube (25) and around a nozzle tip (24), and at least two recirculation zones with at least two different radial extents as part of a toroidal vortex generated on the nozzle tip (24) to provide strong flame stability and flame propagation.