Results 221 to 230 of about 12,314 (268)

Gasoline partially premixed combustion, the future of internal combustion engines?

International Journal of Engine Research, 2011
Gasoline partially premixed combustion showed the potential of very high efficiency, emissions of nitrogen oxides (NO x) and soot below future emission regulations, and acceptable acoustic noise from idle up to 26 bar gross indicated mean effective pressure.
V Manente, B Johansson, W Cannella
exaly   +2 more sources

Combustion of partially premixed spray jets

Proceedings of the Combustion Institute, 2005
Abstract Gas turbines, liquid rocket motors, and oil-fired furnaces utilize the spray combustion of continuously injected liquid fuels. In most cases, the liquid spray is mixed with an oxidizer prior to combustion, and further oxidizer is supplied from the outside of the spray to complete diffusion combustion.
Masato Mikami, Naoya Kojima
exaly   +2 more sources

Fuel Effect on Combustion Stratification in Partially Premixed Combustion

SAE Technical Paper Series, 2017
<div class="section abstract"><div class="htmlview paragraph">The literature study on PPC in optical engine reveals investigations on OH chemiluminescence and combustion stratification. So far, mostly PRF fuel is studied and it is worthwhile to examine the effect of fuel properties on PPC.
Vedharaj, S., Vallinayagam, R., An, Y., Dawood, A., Izadi Najafabadi, M., Somers, L.M.T., Chang, J., Johansson, B.   +7 more
openaire   +2 more sources

Characterization of Partially Premixed Combustion

SAE Technical Paper Series, 2006
<div class="htmlview paragraph">Partially Premixed Combustion (PPC) provides the potential of simultaneous reduction of NOx and soot for diesel engines. This work attempts to characterize the operating range and conditions required for PPC. The characterization is based on the evaluation of emission and in-cylinder measurement data of engine ...
Christof Noehre, Magnus Andersson, Bengt Johansson, Anders Hultqvist   +3 more
openaire   +1 more source

Combustion Modeling of Diesel Combustion with Partially Premixed Conditions

SAE Technical Paper Series, 2007
<div class="htmlview paragraph">Two turbulent combustion modeling approaches, which were large eddy simulations in conjunction with detailed kinetics (LES-CHEMKIN) and Reynolds Averaged Navier Stokes with detailed kinetics (RANS-CHEMKIN), were used to model two partially premixed engine conditions.
Bing Hu, Rahul Jhavar, Satbir Singh, Rolf D. Reitz, Christopher J. Rutland   +4 more
openaire   +1 more source

Combustion Modeling of Partially Premixed Flames

Volume 2: Combustion, Fuels and Emissions, Parts A and B, 2010
Accurate and properly validated turbulence-chemistry interaction models for RANS combustion computational fluid dynamics (CCFD) simulations are required in support of the development process of modern gas turbine combustors. Although standard models are available for fully premixed and purely non premixed turbulent combustion, models describing ...
Ilona Zimmermann, Michael Pfitzner
openaire   +1 more source

LES of Partially Premixed Combustion

2002
Numerical studies devoted to partially premixed combustion are first reviewed. Then a Large Eddy Simulation procedure is proposed for these flames when they develop in turbulent flows. The corresponding subgrid combustion modeling is tested for the case of a turbulent lifted-flame.
Luc Vervisch, Pascale Domingo
openaire   +1 more source

Emissions and Soot in Partially Premixed Combustion

2014
Practical combustion systems typically undergo non-premixed mode of combustion, in which the fuel is injected directly into the combustion chamber, which already has compressed air. The emissions tend to be high in this diffusion mode of combustion as compared to premixing mode.
Surbhi Kohli, Abhijit Kushari
openaire   +1 more source

Turbulent flame propagation in partially premixed combustion

Symposium (International) on Combustion, 1998
Stratified spark-ignition engines that use direct fuel injection into the combustion chamber feature both small- and large-scale spatial variations in unburned mixture composition. In these configurations, the spark-ignited turbulent flame propagates into a mixture with variable equivalence ratio.
J. Hélie, A. Trouvé
openaire   +1 more source

Optimization of Gasoline Partially Premixed Combustion Mode

SAE Technical Paper Series, 2013
<div class="section abstract"><div class="htmlview paragraph">Recent works have demonstrated the possibility of operating compression ignition engine with high resistance to auto-ignition fuels as gasoline. By using gasoline and dilution by exhaust gas recirculation, compression ignition can reach high efficiencies and low particulate (PM ...
Mounaïm-Rousselle, Christine, Foucher, Fabrice, Labreche, Amine   +2 more
openaire   +2 more sources