Session: 08-03 Enabling Technologies, and Gas Turbine Power Plant

Paper Number: 104166

104166 - Flamesheet™ Combustion Multiplatpform Enhancements & Full Interval Validation for Extended Operational Flexibility, Low Emissions & High Hydrogen Capability 

The quest for greenhouse gas (GHG) reduction is driving the need for higher hydrogen combustion capability in industrial gas turbine engines, while renewables demand more operational flexibility. The first FlameSheet™ combustion system entered into commercial operation since 2015 demonstrating operational flexibility and the fleet leader has achieved full interval status of 32khrs of operation in 2022. Since 2015, there has been significant technology advances on the FlameSheet™ from a widening of operational envelope and increased Hydrogen capability with low emissions. The paper reviews a detailed inspection of key lifing areas in the combustor after a full 32k interval and a benchmark to analytical structural analysis predictions. The paper also describes details of FlameSheet™ enhancements in the pilot injector using advanced micro-mixer technology which, combined with the original  FlameSheet™ trapped vortex main injector enables improved flammability margin and lower emissions resulting in improved operational flexibility and Hydrogen capability to support a renewable penetrated energy market and future provisions of GHG reduction mandates.  In addition to the fuel and operational flexibility, provisions to enable multi engine platform compatibility has been implemented, the paper will provide a comparison of the operational characteristics of the FlameSheet™ combustor from a mechanical and aerothermal perspective while operating under F-Class Siemens Westinghouse 501F, GE 7F.03 and E-Class GE 7E.03 industrial heavy duty gas turbine engines. This paper is build on prior information referenced in GT2019-91647 where the low pressure drop FlameSheet™ combustor variant’s implementation alongside PSM’s Gas Turbine Optimization Package on a commercially operating F-Class heavy duty gas turbine.  

Keywords: Gas Turbine, Combustion, Emissions, Hydrogen, Green house gas, Tuning, FlameSheet™, Conversion, Turndown, Fuel Flexibility, Shale Gas, F-Class, Output, Heat rate.

Presenting Author: Ramesh Keshava Bhattu Power Systems Mfg., LLC

Presenting Author Biography: Structural Analysis Engineer with over 18 years of experience analyzing combustion, aerospace, and automotive components with Bachelor of Engineering degree in Mechanical Engineering from JNT University, India in 2005. Throughout my career, I have demonstrated exceptional expertise in a wide range of analysis procedures, including Linear and Non-linear Static, Dynamic and Fatigue Analysis (HCF & LCF), as well as Thermo-Mechanical Fatigue.

Currently, I serve as a Lead Structural Analysis Engineer at PSM, where I am responsible for ensuring the durability of Combustion hardware. In addition, I lead instrumentation efforts required to validate FEA and engine combustion system performance during rig testing and engine commissioning. My expertise in the field is further reflected by my recognition with several prestigious awards including 2 approved Patents and four additional patent pending applications for multitube pilot injectors for gas turbine engines.

My wealth of knowledge and experience has been recognized by my appointment as an ASME Session Organizer and Session Chair (MMM Track) for Turbo Expo in 2021, 2022, and 2023. Furthermore, I have reviewed numerous technical papers and authored or co-authored several papers listed below, showcasing my expertise and reputation in the field.

Authors:

Fred Hernandez Power Systems Mfg., LLC, a Hanwha Company
Ramesh Keshava Bhattu Power Systems Mfg., LLC
Bryan Kalb Power Systems Mfg., LLC
Matthew Yaquinto Power Systems Mfg., LLC
Gregory Vogel Power Systems Mfg., LLC
Hany Rizkalla Power Systems Manufacturing