Results 71 to 80 of about 31,348 (305)

Numerical investigation of soot formation in diesel jet flame with KIVA-3V

open access: yesRevue des Énergies Renouvelables, 2009
Diesel engines emit a Large amount of pollutants essentially soot particles. This paper describes a 3D modeling on platform of a 3-D code for engine thermodynamic simulation Kiva-3V. A Hiroyasu model for soot formation was used originally, it’s a twostep
K. Boussouara, M. Kadja
doaj  

Empirical soot formation and oxidation model

open access: yesThermal Science, 2009
Modelling internal combustion engines can be made following different approaches, depending on the type of problem to be simulated. A diesel combustion model has been developed and implemented in a full cycle simulation of a combustion, model accounts for transient fuel spray evolution, fuel-air mixing, ignition, combustion, and soot pollutant ...
Karima Boussouara, Mahfoud Kadja
openaire   +1 more source

Classifying avian drinking behaviour: ecological insights and implications in a changing world

open access: yesBiological Reviews, EarlyView.
ABSTRACT Water is a fundamental currency of life, and its availability significantly influences animal behaviour, physiology and distributions. However, our knowledge around the dependence on water for drinking and the direct and indirect mechanisms driving related behaviours remains partial in the context of changing climates. Here, we review patterns
Shannon R. Conradie, Marc T. Freeman
wiley   +1 more source

Effects of Injection Rate Profile on Combustion Process and Emissions in a Diesel Engine

open access: yesJournal of Combustion, 2017
When multi-injection is implemented in diesel engine via high pressure common rail injection system, changed interval between injection pulses can induce variation of injection rate profile for sequential injection pulse, though other control parameters ...
Fuqiang Bai   +4 more
doaj   +1 more source

Soot and Nanomaterials Formation in Flame

open access: yesEurasian Chemico-Technological Journal, 2014
The seventieth anniversary of Professor Jürgen Warnatz is an important event for the scientific community of investigators of chemical kinetics and computation of combustion. His brilliant research in the field of combustion, particularly in the chemical
Z. A. Mansurov
doaj   +1 more source

Discrete element method model of soot aggregates

open access: yesPhysical Review E
Soot is a component of atmospheric aerosols that affects climate by scattering and absorbing the sunlight. Soot particles are fractal aggregates composed of elemental carbon. In the atmosphere, the aggregates acquire coatings by condensation and coagulation, resulting in significant compaction of the aggregates that changes the direct climate forcing ...
Egor V. Demidov   +2 more
openaire   +3 more sources

Precipitation of niobic acid from potassium niobate in sulphuric acid solution: A route to niobium oxide

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Graphical abstract illustrating the niobic acid precipitation process applied and the product obtained. Abstract This study investigates the precipitation of niobic acid (Nb2O5.nH2O) from potassium niobate solution with addition of sulphuric acid, and its subsequent thermal conversion into niobium oxide (Nb2O5). Thermodynamic modelling with PHREEQC and
Cássia R. Souza   +4 more
wiley   +1 more source

Contrail microphysics in the near wake of a realistic wing through RANS simulations [PDF]

open access: yes, 2012
This paper focuses on Steady Reynolds Average Navier Stokes simulations (RANS) of ice particles growth in the near field of a wing-injector configuration.
Guignery, Florent   +3 more
core   +3 more sources

Evolution of the water cluster in pore condensation

open access: yesDroplet, EarlyView.
In pore condensation, lower contact angles reduce molecular displacement (60%) and potential energy (10%), enhancing vapor capture tenfold. Pores restrict water molecule mobility, promoting condensation. On hydrophobic surfaces (124∘$^\circ$), pores stabilize embryos, ensuring uniform condensation within pores, boosting nucleation efficiency.
Boxuan Cui   +4 more
wiley   +1 more source

Shock tube study of the fuel structure effects on the chemical kinetic mechanisms responsible for soot formation, part 2 [PDF]

open access: yes
Soot formation in oxidation of allene, 1,3-butadiene, vinylacetylene and chlorobenzene and in pyrolysis of ethylene, vinylacetylene, 1-butene, chlorobenzene, acetylen-hydrogen, benzene-acetylene, benzene-butadiene and chlorobenzene-acetylene argon ...
Clary, D. W.   +2 more
core   +1 more source

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