Session: 04-01: Fuel flex

Paper Number: 82881

82881 - Development of a Fuel Flexible H2-Natural Gas Gas Turbine Combustion Technology Platform 

Siemens Energy has committed to develop the required technologies to operate its gas turbine fleet on up to 100% H2 by 2030 to support the target of limiting global warming to 1.5 degrees. A focused effort has been undertaken to develop a technology platform for the Siemens Energy GT portfolio which will enable GT operation across the entire range H2/Natural Gas blends within emissions compliance. A first engine demonstration of these technologies in an industrial application will be conducted in an SGT-400 engine in 2023 as part of HYFLEXPOWER, an EU Horizon 2020 funded consortium project.

This paper will present the results of numerical and experimental investigations of several candidate dry low NO_x technologies. The candidate technologies are all lean, premixed designs and include: a swirled flame primary stage, a jet-based flame primary stage and an axial stage. The experimental results are conducted at elevated pressure and temperature conditions representative of the Siemens Energy gas turbine fleet. Additionally, a comparison of different kinetics mechanisms which offer the potential to accurately model flames burning H2, natural gases, and combinations of these fuels will be presented. The mechanisms include GRI 3.0 as well as two mechanisms which have been previously developed to improve the accuracy with high H2 content fuels.

Presenting Author: Benjamin Witzel Siemens Energy Global GmbH und Co KG

Presenting Author Biography: Benjamin Witzel holds a Ph.D. in mechanical engineering in the field of the application of advanced diagnostics to gas turbine combustion systems. Working for Siemens since 2013, Benjamin was the technical lead for the development of different combustion systems incl. the latest system for the new SGTX-9000HL frame. He is currently the technical lead for the development of a new combustion technology for 100% H2 combustion.

Authors:

Benjamin Witzel Siemens Energy Global GmbH und Co KG
Daniel Moell Siemens Energy AB
Nishant Parsania Siemens Energy Industrial Turbomachinery Ltd.
Michael Koenig Siemens Energy, Inc.
Ertan Yilmaz Siemens Energy, Inc.