Abstract
Siemens Energy is developing the required technologies to operate its gas turbines up to 100% H2 by 2030 to support the target of limiting global warming to 1.5 degrees Celsius. A focused effort has been undertaken to develop a combustion system technology platform for the complete Siemens Energy gas turbine portfolio which will enable gas turbine operation across the entire range of H2/natural gas blends within emissions compliance and hardware integrity.
This paper presents an update of Siemens Energy’s 100% Hydrogen DLE Gas Turbine Combustion Technology Platform Development presented at the 2022 ASME Turbo Expo [20]. While the 2022 paper showed initial rig test results at scaled pressure, the update includes new results from rig testing at full pressure, a summary of results from SGT-400 full engine tests conducted on natural gas at the Siemens Energy factory in Lincoln (UK), and SGT-400 full engine tests with various levels of hydrogen up to 100% at a customer site in Saillat-Sur-Vienne (France) as part of the HYFLEXPOWER project. An engine safe operation envelope with respect to flashback will be presented and engine data will be compared against rig test data obtained at Clean Energy Center at relevant engine conditions. Siemens Energy actively researches and develops methods to investigate hydrogen embrittlement effects in metallic materials, particularly those applied in gas turbines. Through extensive testing of base materials and their joint connections, Siemens Energy aims to improve understanding of hydrogen’s effects on materials and optimize gas turbine components’ lifespan. The current state of development in this regard is presented here. Finally, the paper will provide an outlook on the scaling of the demonstrated hydrogen technology to Siemens Energy’s gas turbine portfolio.
