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Keywords: combustion
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Proceedings Papers

Proc. ASME. GT2023, Volume 7A: Heat Transfer — Combustors; Film Cooling, V07AT11A002, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102672
..., coupled laser diagnostics, combustion, gas turbine 1. INTRODUCTION To drive the energetic transition of the aviation sector, aeroengine manufacturers are developing innovative low-carbon aircraft engines based on disruptive technologies. As an example, the flightpath 2050 goals from ACARE (advisory...
Proceedings Papers

Proc. ASME. GT2023, Volume 7A: Heat Transfer — Combustors; Film Cooling, V07AT11A008, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-104015
... porosity increases the hole-to-hole distance, enabling the reactive flow to be engulfed at the wall. Keywords: Flame-wall interactions, effusion wall, combustion, laser diagnostics 1. INTRODUCTION In order to take actions to combat climate change and its impacts [1], the fossil fuel-dependent industry...
Proceedings Papers

Proc. ASME. GT2023, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T08A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102065
... gas turbine performance combustion Abstract As gas turbines are operated and maintained, it is key to understand engine firing temperatures at cyclical and variable load operations, and more specifically, the tradeoff between engine performance, repair costs and reliability...
Proceedings Papers

Proc. ASME. GT2023, Volume 7A: Heat Transfer — Combustors; Film Cooling, V07AT11A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103503
... effusion cooling TBC heat transfer combustion Abstract The combination of effusion cooling and thermal barrier coating has enabled to reach higher combustor temperatures, hence more efficient and powerful gas turbine engines over the last two decades. Effusion cooling and thermal...
Proceedings Papers

Proc. ASME. GT2023, Volume 6: Education; Electric Power; Energy Storage; Fans and Blowers, V006T08A011, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103962
... gas turbine combustion hydrogen decarbonization Abstract Gas turbines continue to play a vital role in the global push for decarbonization, both for near-term reductions as coal phases out for natural gas operation and long-term transitions to carbon-free fuels. While decarbonization...
Proceedings Papers

Proc. ASME. GT2023, Volume 1: Aircraft Engine, V001T01A022, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102370
...Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-102370 HYDROGEN COMBUSTOR INTEGRATION STUDY FOR A MEDIUM RANGE AIRCRAFT ENGINE USING THE DRY-LOW NOX MICROMIX COMBUSTION PRINCIPLE H. H.-W. Funke, N...
Proceedings Papers

Proc. ASME. GT2023, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T03A004, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100998
... Abstract Recent findings from the US Energy Information Administration (EIA) project an increase in domestic fossil fuel consumption (e.g., petroleum, natural gas) and global greenhouse gas (GHG) emissions through 2050 [1]. Consequently, advanced combustion research aims to identify fuels...
Proceedings Papers

Proc. ASME. GT2023, Volume 2: Ceramics and Ceramic Composites; Coal, Biomass, Hydrogen, and Alternative Fuels, V002T03A016, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102803
...Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-102803 MODELLING AMMONIA-HYDROGEN-AIR COMBUSTION AND EMISSION CHARACTERISTICS OF A GENERIC SWIRL BURNER Luca Mazzottaa, Francesco D Alessioa, Roberto...
Proceedings Papers

Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A032, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101500
..., the measured FTFs are tted with FTF models based on multiple distributed time delays. This allows us to explain the frequency dependence and the hydrogen fraction dependence of the gain and the phase in FP and TP conditions . Keywords: Hydrogen, Combustion, Thermoacoustics, Flame Transfer Function 1...
Proceedings Papers

Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A022, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-101364
... Abstract The vision of a carbon-neutral world, implies the shift from fossil to clean fuels for combustion-driven processes and machines like gas turbines. Green hydrogen is a promising alternative to substitute natural gas and other fossil fuels. In the H2mGT project, funded by the German...
Proceedings Papers

Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A065, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102457
..., with a comparison provided. The corresponding differences in emission formation pathways were investigated, alongside high-speed OH* chemiluminescence to further elucidate findings. Keywords: Hydrogen, Combustion, Low-emission combustor, Turbulence, Fuel combustion. NOMENCLATURE Area of the burner nozzle exit...
Proceedings Papers

Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A064, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102452
... and steam injection were combined to give optimal NOx performance for the evaluated dataset. Changes in chemical kinetic pathways were investigated in detail, and compared to high-speed OH*, NH2*, and NH* chemiluminescence. Keywords: Chemical kinetics, Combustion, low-emission combustor, premixed flames...
Proceedings Papers

Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A004, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-100755
... gas turbine combustion liquid/gaseous ammonia hydrogen energy carrier reformer Abstract Ammonia is a well-known hydrogen carrier with a lower laminar flame speed and larger heat of evaporation than hydrocarbon fuels, such as gasoline, diesel and kerosine. Therefore, a supply...
Proceedings Papers

Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A056, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102318
... mode as compared to a vortex-shedding-coupled oscillation mode at high O 2 levels where the flame is stabilized on the centerbody. Companion chemical kinetics simulations are used to explain changes in the flame’s shape and behavior. combustion exhaust gas recirculation stability pilot flame...
Proceedings Papers

Proc. ASME. GT2023, Volume 3A: Combustion, Fuels, and Emissions, V03AT04A067, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102502
... needs and the effort required to achieve them. The hydrogen combustion technology is mainly focused on flashback free burners and gas fuel injectors development, representing a significant fuel flexibility enhancement of the NovaLT gas turbines family. The readiness of the currently available...
Proceedings Papers

Proc. ASME. GT2023, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A013, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102892
... Abstract To address the shortage of fossil fuels and the environmental impact of exhaust emissions, research efforts in combustion seek to identify candidates for sustainable fuels. Hydrogen is an example, from which water is produced as the main combustion product. However, when used as neat...
Proceedings Papers

Proc. ASME. GT2023, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A056, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103822
...Proceedings of ASME Turbo Expo 2023 Turbomachinery Technical Conference and Exposition GT2023 June 26-30, 2023, Boston, Massachusetts, USA GT2023-103822 EVALUATION OF NOX EMISSIONS ASSOCIATED TO NON-PREMIXED COMBUSTION OF H2/NATURAL GAS BLENDS IN A 40MW HEAVY-DUTY GAS TURBINE Salvatore Carusotto...
Proceedings Papers

Proc. ASME. GT2023, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A018, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103033
... the low emissions operation range of the premixed combustion systems, many gas turbines bypass a part of the compressed air upstream of the combustor and either blow it off into the exhaust stack or reinject it into the secondary combustion zone. The first approach is the more common one but has...
Proceedings Papers

Proc. ASME. GT2023, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A005, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-102824
.... At constant velocity, however, both the attachment height and radius were observed to decrease with increased pressure. Keywords: oxyfuel, high pressure, combustion. NOMENCLATURE CH4 CO2 O2 NO Ufuel Ucoflow Methane Carbon dioxide Oxygen Nitric oxide Fuel jet velocity Coflow velocity UL Lift-off velocity SL...
Proceedings Papers

Proc. ASME. GT2023, Volume 3B: Combustion, Fuels, and Emissions, V03BT04A039, June 26–30, 2023
Publisher: American Society of Mechanical Engineers
Paper No: GT2023-103418
... combustion flameless oxidation hydrogen micro gas turbine CHP Abstract In this study the hydrogen capability of a jet-stabilized combustion system, initially designed/or syntheses-gas from biomass and natural gas mixtures, was investigated at atmospheric conditions. Therefore...