... Abstract New materials and component designs are needed to advance gas turbine engine technology and provide the performance and efficiency needs for future applications. In order to advance these materials, testing in combustion environments is a critical step prior to engine testing...

... Abstract Hydrogen micromix combustion is a promising technology to reduce the environmental impact of both aero and land-based gas turbines by delivering carbon-free, and potentially ultra-low-NOx, combustion with a greatly reduced risk of autoignition or flashback. A preliminary investigation...

... NOx emissions and unburnt ammonia slip during ammonia combustion make it challenging. This study explores chemical reactor networking (CRN) modeling and multi-objective optimization of NO emissions and NH 3 slip for similar conditions of an aviation gas turbine. The parametric studies were considered...

... stratification has potential to trigger instabilities at different frequencies to premixed. ammonia hydrogen combustion emissions stratification partial premixing Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom...

... of such an engine technology is the hydrogen micromix combustor which provides a solution to safe hydrogen combustion which avoids auto-ignition and flashbacks by addressing novel methods of hydrogen-air mixing. The current design concepts include a typical injection manifold consisting of multiple concentric...

.... This preliminary assessment considers the potential for power generation gas turbines to burn evaporated ethanol in lean premix burners. A Siemens SGT5-2000E gas turbine as operated in Uniper’s Killingholme plant is used as an example. Impacts on key combustion performance parameters (emissions, combustion...

... geometries. Fortunately, with recent advances in supercomputing capabilities, such simulations are now possible and can be used to understand the underpinnings of combustion physics at scales that are often unavailable to experiments. Thus, the objective of this study is to investigate the ability of LES...

... Abstract Clean combustion technologies and efficient energy harvesting methods are the focal points of current combustion research. The swirling flows are employed to achieve a well-mixed, homogenous fuel-air mixture for an efficient combustion in a gas turbine engine. The current study...

... by the German BMWK and it is a collaboration between TUB and the manufacturer Euro-K GmbH. It consists of three phases: 1. Atmospheric pressure tests with a fused silica combustion chamber; 2. Atmospheric pressure tests with counterflow-cooled steel flame tube and secondary air injection; 3. Validation...

... turbulent noise levels. Steam enrichment is a combustion concept that reduces harmful emissions such as NO x and CO 2 while increasing engine efficiency. However, the effect of steam on the flame response, i.e. the FTF, needs to be better understood. To this end, a combustion model that includes...

... for the first time to the fuel-bound NO x formation path. Thus, the main goal of this investigation is the validation of the proposed approach in the framework of this NO x mechanism, hence allowing to overcome the limits of the pre-tabulated combustion models in the prediction of this pollutant. Further...

... times of 10 ms and 5 ms which represent the residence times in modern aviation gas turbine combustors. Chemical reactor network (CRN) models have been simulated using the Ansys Chemkin-Pro software, implementing air-staging techniques like RQL (Rich-Quench-Lean) to efficiently combust the fuel and bring...

... of equations describing the behavior of the MGT’s components, and the consumption of the auxiliary devices. To examine the combustion kinetics and evaluate the MGT emissions with ammonia feed, a further algorithm utilizing Cantera library has been developed. This model is a one-dimensional tool that allows...

... Abstract As part of its commitment to the decarbonization of the aviation sector and the UN Race to Zero global campaign, Rolls-Royce is actively developing hydrogen combustion gas turbine engine technology capable of powering a range of aircraft from 2035 onwards. These innovative technologies...

... Abstract Two potential decarbonization pathways for natural gas (NG) fueled gas turbine engines include blending hydrogen (H 2 ) into NG and post-combustion carbon capture. H2 blending changes several combustion properties, including flame speed and stretch sensitivity. The use of post...

... power on blends of hydrogen mixed with natural gas and water. combustion emissions gas turbine hydrogen power generation sustainability Proceedings of ASME Turbo Expo 2024 Turbomachinery Technical Conference and Exposition GT2024 June 24-28, 2024, London, United Kingdom GT2024-121321...

... the commissioning engineers for the recommissioning after an overhaul of a 60 Hz GT. The algorithm’s recommendation led to constant successful ignitions on this specific test site covering various boundary conditions over the observation period of 2 years. gas turbines combustion ignition classifiers...

... Abstract Hydrogen and ammonia represent two carbon-free fuel sources that could be used in place of current fossil energy sources in combustion systems. To develop optimized ammonia combustion systems, validated modeling tools are needed. In the open literature, it has been shown...

... Manifolds (FGM) combustion model. The proposed scheme is evaluated through scale resolving simulations of the Cambridge burner flame SWB1 on a fully unstructured grid using the density-based solver TRACE, employing both Finite Rate Chemistry (FRC) and FGM combustion models. Comparative analysis is conducted...

... Abstract A novel high-shear injector developed at the National Centre for Combustion Research and Development (NCCRD) is further investigated in the current study. The effect of flare angle on reacting and non-reacting flow field and stabilization of the flame is explored using high-speed OH...