Blar i Institutt for energi og prosessteknikk på forfatter "Gaucherand, Jessica"
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Direct Numerical Simulation of premixed ammonia/hydrogen flames: the effects of thermo-diffusive instabilities
Gaucherand, Jessica (Doctoral theses at NTNU;2023:377, Doctoral thesis, 2023)In order to phase out traditional fuel from the energy mix to reduce CO2 emissions and meet the large energy demand, the combustion of carbon-free fuels needs to be considered. This thesis investigates the combustion of ... -
DNS of Turbulent Premixed Ammonia/Hydrogen Flames: The Impact of Thermo-Diffusive Effects
Gaucherand, Jessica; Netzer, Corinna; Laera, Davide; Poinsot, Thierry (Journal article; Peer reviewed, 2023)Direct Numerical Simulations (DNS) of three-dimensional premixed turbulent hydrogen-air flames enriched with 19%, 36%, 44% and 57% of NH (in volume) are performed. Starting from an equivalence ratio of 0.44 for the case ... -
Intrinsic instabilities of hydrogen and hydrogen/ammonia premixed flames: Influence of equivalence ratio, fuel composition and pressure
Gaucherand, Jessica; Laera, Davide; Netzer, Corinna; Poinsot, Thierry (Peer reviewed; Journal article, 2023)Premixed lean hydrogen-air flames exhibit instabilities due to hydrodynamic instabilities but also thermo-diffusive instabilities. However, in the case of ammonia/hydrogen blends, the effect of ammonia addition on instabilities ... -
Modelling of a Solenoid Injector for Internal Combustion Engines and Simulation Using the Bond Graph Methodology
Gaucherand, Jessica; Pedersen, Eilif; Netzer, Corinna; Løvås, Terese (Peer reviewed; Journal article, 2023)In internal combustion engines, fuel injection timing, injection rate and pressure is optimized to ensure suitable combustion and reduce emissions. Injectors are complex systems where mechanical, electromagnetic, and fluid ...