Effectiveness of perforated plate diameter on flame extinction of propane flames enriched with hydrogen and characterized by Lewis and Zeldovich numbersThis experimental study investigates the influence of perforated plate orifice diameter on the flame extinction for propane mixtures enriched with hydrogen, under initial conditions of 40 kPa and 295 K. Six mixtures...
Año de publicación: 2025
Influence of Obstacle Separation Distance on the Acceleration of Premixed Methane/Air Flames in a Closed ChannelFlame acceleration plays an important role in determining the onset of deflagration-to-detonation transition (DDT) phenomenon that is relevant to novel pressure-gain propulsion and explosion safety research. Accordingly, this work explores...
Año de publicación: 2025
Distorted tulip flame: On the mechanisms controlling premixed flame acceleration in closed channelsThis study numerically investigates premixed flame propagation dynamics accounting for two different wall boundary conditions: (i) free-slip and (ii) non-slip boundary conditions. Direct numerical simulations (DNS) conducted here involved the...
Año de publicación: 2025
Detonation processes application to increase thermal efficiency in gas turbine cycles: Case study for hydrogen enriched fuelsThis work describes a thermodynamic comparison of the thermal efficiency of gas turbine engines featuring a conventional combustion chamber and a detonation combustion chamber, using methane, ethanol and mixtures of both ethanol and hydrogen...
Año de publicación: 2025
Design, manufacturing, and testing of a prototype green hydrogen production plant based on water electrolysis and solar energyThis paper describes the development of a prototype plant for green hydrogen production based on water electrolysis using solar radiation. The development of the prototype plant included several distinct stages....
Año de publicación: 2025
Effective thermal-electric control system for hydrogen production based on renewable solar energyThis paper focuses on the design and use of a control system for a renewable energy production plant based on hydrogen. The proposed control system aims at ensuring the stability and smooth...
Año de publicación: 2024
Qualitative and quantitative analyses of particulate flows in rotating drums using a DEM-based approachIn mineral processing, ore grinding is an energy-intensive process. Tumbling mills used in grinding processes can be accounted for as rotating drums with liners. As part of an effort to...
Año de publicación: 2024
Direct numerical simulations of two-phase fluids interface in 2D rotating drums using a coupled VoF-IBM numerical approachRotating drums play important roles in numerous industrial applications, such as mineral processing. This work is focused on the numerical study of the interface evolution in liquid-liquid and liquid-gas phases...
Año de publicación: 2024
Computational assessment of soot models in ethylene/air laminar diffusion flamesTo improve the accuracy of soot formation and evolution predictions, several physical and chemical models have been developed over the last decades. These models include (i) detailed chemical kinetic mechanisms...
Año de publicación: 2024
On the application of sliding mode control to indirectly coupled photovoltaic-electrolyzer systems used in the production of clean energyTo improve the performance of photovoltaic-electrolyzer (PV-EL) systems, it is key to operate them at the right operating conditions, not only at design point but also at off-design. In addition,...
Año de publicación: 2024