Searched for: subject%3A%22Hydrogen%255C%2Bcombustion%22
(1 - 12 of 12)
document
Gunce, Cem (author)
Today's electricity supply falls short of current demands, leading to the utilization of gas turbines in both ground based and avionic infrastructures. Nevertheless, these often rely on carbon-based fuels, resulting in escalating CO2 emissions. However, adopting hydrogen as a fuel eliminates carbon emissions. Aside from zero carbon emissions,...
master thesis 2024
document
Doodeman, Lennard (author)
Large eddy simulation paradigm is employed to analyse the internal flow field of a lean premixed swirlstabilized combustor with axial air injection at both non-reacting and reacting conditions for a methane and a methane-hydrogen fuel mixture. The Thickened Flame combustion model with the kinetic mechanism GRI 3.0 and the detailed chemical...
master thesis 2022
document
van der Laan, Fedor (author)
Hydrogen is a promising fuel for both reducing greenhouse gas emissions and being used as an energy carrier for renewable energy sources. The adaption of hydrogen instead of natural gas as a fuel in gas turbine combustors introduces additional challenges regarding flame stability. One instabilities is boundary layer flashback. This phenomenon...
master thesis 2022
document
van den Bergh, Aydin (author)
To reduce emissions from civil aviation, research is being conducted in lean premixed hydrogen combustors as part of the APPU project at the TU Delft. Next to mitigating CO2 emissions completely, these technologies have the potential to also reduce NOx emissions greatly, allowing for the future of civil aviation to become sustainable. However,...
master thesis 2022
document
Willems, Gersom (author)
The growing energy demand and climate change poses a need for alternative energy generation in terms of renewable resources. Renewable energy resources are characterised by their intermittent behaviour. A backup power supply is required that can deliver electricity when the supply from the renewables is not sufficient. Gas turbines operating...
master thesis 2022
document
Castellanos, Leonardo (author), Mazza, F. (author), Bohlin, G.A. (author)
We present a novel diagnostic technique to probe water vapor (H<sub>2</sub>O) concentration in hydrogen (H<sub>2</sub>) combustion environments via the time-resolved measurement of the collisional dephasing of the pure-rotational coherent anti-Stokes Raman scattering (CARS) signal of nitrogen (N<sub>2</sub>). The rotational Raman coherence of...
journal article 2022
document
Lobato Perez, Javier (author)
During a severe accident in a water­-cooled nuclear power plant, large quantities of hydrogen can be generated in the reactor core. The hydrogen mixed with air presents a potential risk of combustion when the hydrogen concentration reaches flammability limits. If combustion occurs, pressure loads can damage safety systems and even compromise the...
master thesis 2021
document
Vermeijlen, Simon (author)
Swirl-stabilised hydrogen combustion has great potential in the aviation industry since emissions can be significantly reduced compared to fossil fuels. However, a major drawback is a high proneness to flashback. This could be overcome with non-swirling axial air injection (AAI) on the centre-line of the mixing tube. The effect of this concept...
master thesis 2021
document
SARAKATSANIS, CHRISTOS (author)
The idea of using hydrogen as a medium for storing excess renewable energy is gathering momentum but to deliver, several technological advances are required. One of the main challenges is boundary layer flame flashback (BLF) as a key operability issue for low NO<sub>x</sub> premixed combustion of hydrogen-enriched fuels; thus design of tools to...
master thesis 2020
document
Schwarze, Xander (author)
Power-to-gas (PtG) technology represents a promising route in providing long-term energy security and involves pairing volatile sources of renewable energy (solar and wind energy) with alkaline water electrolysis (AWE) to create a wide range of products based on intermediate hydrogen gas for end-users across various industries such as in fuels,...
master thesis 2020
document
Tober, Joeri (author)
A highly accurate model is presented that predicts boundary layer flashback (BLF) for lean premixed hydrogen combustion. In contrast to existing models, that fail for lean hydrogen mixtures, the present model includes the effect of flame instabilities. The model is applied to study the effect of burner geometry on flashback tendency. A diverging...
master thesis 2019
document
De Graaff, M.S. (author), Van de Graaf, M.J. (author), Pepels, M.E.J. (author), Smoor, T.W. (author), Visschedijk, B.G. (author)
Document(en) uit de collectie Chemische Procestechnologie
report 2004
Searched for: subject%3A%22Hydrogen%255C%2Bcombustion%22
(1 - 12 of 12)