Development and Integration of the Dual Fuel Combustion System for the MGT Gas Turbine Family

Author:

Ćosić Bernhard1,Reiß Frank1,Blümer Marc1,Frekers Christian1,Genin Franklin1,Pähr Judith1,Wassmer Dominik1

Affiliation:

1. MAN Energy Solutions SE, Steinbrinkstr. 1, Oberhausen 46145, Germany

Abstract

Abstract Industrial gas turbines like the MGT6000 are often operated as power supply or as mechanical drives. In these applications, liquid fuels like “diesel fuel no. 2” can be used either as main fuel or as backup fuel if natural gas is not reliably available. The MAN gas turbines (MGT) operate with the advanced can combustion (ACC) system, which is capable of ultralow NOx emissions for gaseous fuels. This system has been further developed to provide dry dual fuel capability. In this paper, we describe the design and detailed experimental validation process of the liquid fuel injection, and its integration into the gas turbine package. A central lance with an integrated two-stage nozzle is employed as a liquid pilot stage, enabling ignition and startup of the engine on liquid fuel only. The pilot stage is continuously operated, whereas the bulk of the liquid fuel is injected through the premixed combustor stage. The premixed stage comprises a set of four decentralized nozzles based on fluidic oscillator atomizers, wherein atomization of the liquid fuel is achieved through self-induced oscillations. We present results illustrating the spray, hydrodynamic, and emission performance of the injectors. Extensive testing of the burner at atmospheric and full load high-pressure conditions has been performed, before verification within full engine tests. We show the design of the fuel supply and distribution system. Finally, we discuss the integration of the dual fuel system into the standard gas turbine package of the MGT6000.

Funder

Bundesministerium fur Wirtschaft und Technologie

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Reference27 articles.

1. Review of Modern Low Emissions Combustion Technologies for Aero Gas Turbine Engines;Prog. Aerosp. Sci.,2017

2. Development of a Liquid Fuel Combustion System for SGT-750,2014

3. Development of a Liquid Fuel System for GE MS5002E Gas Turbine: Rig Test Validation of the Combustor Performance,2014

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