A5064543501- Advanced Combustion Engine Technologies
- Combustion and flame dynamics
- Catalytic Processes in Materials Science
- Combustion and Detonation Processes
- Vehicle emissions and performance
- Biodiesel Production and Applications
- Fire dynamics and safety research
- Atmospheric chemistry and aerosols
- Ammonia Synthesis and Nitrogen Reduction
- Thermochemical Biomass Conversion Processes
- Heat transfer and supercritical fluids
- Energetic Materials and Combustion
- Fire effects on ecosystems
- Chemical Thermodynamics and Molecular Structure
- Engine and Fuel Emissions
- Rocket and propulsion systems research
- Fluid Dynamics and Heat Transfer
- Electrohydrodynamics and Fluid Dynamics
- Spectroscopy and Laser Applications
- Fluid Dynamics and Turbulent Flows
- Engineering Applied Research
- Biofuel production and bioconversion
- Wind and Air Flow Studies
- Cyclone Separators and Fluid Dynamics
- Radiative Heat Transfer Studies
Laboratoire Pluridisciplinaire de Recherche en Ingénierie des Systèmes, Mécanique et Energétique
2016-2025
Université d'Orléans
2016-2025
Institut National des Sciences Appliquées Centre Val de Loire
2014-2024
Institut de Combustion Aérothermique Réactivité et Environnement
2016
École Nationale Supérieure d'Art
2016
AP2E (France)
2011-2013
Electronic Control and Measurement (Czechia)
2013
École Polytechnique
2004
Centre National de la Recherche Scientifique
1994-1995
Understanding the chemistry behind oxidation of ammonia/hydrogen mixtures is crucial for ensuring flexible use such in several applications, related to propulsion systems and power generation. In this work, blends was investigated through an experimental kinetic-modeling study, where low- intermediate-temperature conditions were considered. An campaign performed a flow reactor, at stoichiometric near-atmospheric pressure (126.7 kPa). The mole fraction fuels, oxidizer final products measured....
This paper assesses different butanol–gasoline blends used in a port fuel-injection, spark-ignition engine to quantify the influence of butanol addition on emission unburned hydrocarbons, carbon monoxide, and nitrogen oxide. Furthermore, in-cylinder pressure was measured combustion stability compare ignition delay fully developed turbulent phases as given by 0%–10% 10%–90% Mass Fraction Burned (MFB). The main findings are: 1) 40% butanol/60% gasoline blend volume (B40) minimizes HC...
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The objective of this paper is to provide new data about the possibility using ammonia as a carbon-free fuel in spark-ignition engine. A current GDI PSA engine (Compression Ratio 10.5:1) was chosen order update results available literature mainly obtained CFR Particular attention paid determine lowest possible load limit when supplied with pure or small amount H2, depending on speed, highlight limitation during cold start conditions. It can be concluded that run stably most these operating...
Faced with the problem of reducing greenhouse gas emissions and transitioning toward a greater use renewable energies, ammonia, as an energy carrier, is increasingly seen potential ‘green’ fuel for transportation, in particular marine applications. However, its combustion characteristics (high minimum ignition auto-ignition temperature, low speed comparison to usual hydrocarbon fuels) are drawbacks that have so far limited use. Due evolution different pollutant standards road Spark-Ignition...
Using carbon free energy sources is one of the keys to mitigate climate change. Hydrogen promises be these energies, but its storage difficult and expensive. Ammonia, however, interesting as it can store hydrogen safely used in combustion engines instead hydrocarbon fuels. In this experimental work, spray characteristics ammonia under different air densities temperatures were investigated constant volume compared a biofuel, ethanol, common fuel, gasoline. The Schlieren technique was capture...
Recent studies concluded that the use of ammonia in SI engines is possible thanks to an ignition booster or promoter. In this paper, improvement premixed ammonia/air combustion for internal studied as a function performance and exhaust pollutants Spark-Assisted Compression Ignition single-cylinder engine, which supports higher compression ratio (CR). For first time, pure NH 3 was performed over large range engine operating conditions. The study concludes neat can be used range, here driven...
Although recent studies have shown the possibility of running 'standard' spark-ignition engines with pure ammonia, operating range remains limited mainly due to unfavorable characteristics ammonia for premixed combustion and often requires addition a complementary fuel such as H2 extend it. As best way add is crack directly on-board, this paper focuses on impact upstream cracking level performance emissions single cylinder spark ignition engine. Experiments were performed over several...
Ammonia, a carbon-free source of hydrogen has recently gained considerable attention as energy solution towards green future. Previous works have shown that adding 30VOL.% with ammonia can eradicate the drawbacks pure combustion but no study in literature investigated this blend across wide range equivalence ratios. The present work investigates 70/30VOL.% NH3/H2 from 0.55 ≤ Φ 1.4 for both premixed laminar spherically expanding flames and turbulent swirling at atmospheric conditions. A...
Combustion and emissions characteristics of a spark-ignition engine using direct injection ethanol blended with ammonia also pure were investigated in this study. The experiments conducted five different fuel compositions ethanol/ammonia (C 2 H 5 OH/NH 3 ): 100/0, 75/25, 50/50, 25/75, 0/100. Two strategies to reach homogenous or stratified conditions three intake pressures, 0.5, 1.0, 1.5 bar corresponding 2.8, 7.9, 12 IMEP. performances the pollutants are compared as function at identical...