Results 181 to 190 of about 699,761 (252)

Catalyst Selection for Lean Combustion Engines

SAE Technical Paper Series, 1987
<div class="htmlview paragraph">A modeling procedure for selecting exhaust gas oxidation catalysts was applied to a lean air/fuel, high compression engine. The procedure was used to select the lowest cost catalyst that could meet given CVS C/H emission targets.
M. R. Vaughen, R. H. Hammerle
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SPONTANEOUS OSCILLATIONS IN LEAN PREMIXED COMBUSTION

Combustion Science and Technology, 2002
The combustion reaction taking place under the typical operating conditions of lean premixed combustors was studied by mans of the bifurcation theory. The combustion zone was modeled as perfectly mixed and without coupling with acoustic. Theoretical stability amps were built as a function of the most important operating parameters (heat transfer ...
RUSSO, GENNARO, DI BENEDETTO A. MARRA F.
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Application of Macrolamination Technology to Lean, Premix Combustion

Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, 2000
Macrolamination, a novel manufacturing technique, is used to develop a dual-fuel premixer. A spatially distributed injection strategy is used to enhance fuel placement, distribution, and mixing inside the premixer. Parametric studies are conducted with different configurations of the premixer to determine the effects of residence time and nozzle ...
A. Mansour, M. Benjamin, D. L. Straub, G. A. Richards   +3 more
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Homogeneous Lean Combustion in a 2lt Gasoline Direct Injected Engine with an Enhanced Turbo Charging System

SAE technical paper series, 2018
In the quest for a highly efficient, low emission and affordable source of passenger car propulsion system, meeting future demands for sustainable mobility, the concept of homogeneous lean combustion (HLC) in a spark ignited (SI) multi-cylinder engine ...
K. Clasén, Lucien Koopmans, D. Dahl
semanticscholar   +1 more source

Combustion and Emission Characteristics of Premixed Lean Diesel Combustion Engine

SAE Technical Paper Series, 1997
<div class="htmlview paragraph">Typical DI diesel engines operate with fuel injection taking place within a range of about 30 crank angle degrees before top dead center, at the end of the compression stroke. When injection takes place far earlier, at the beginning of the compression stroke, another form of combustion occurs, which we termed ...
Keiichi Nakagome, Naoki Shimazaki, Keiichi Niimura, Shinji Kobayashi   +3 more
openaire   +1 more source

Combustion Instability at Lean Limit

2018
In recent years gas engine manufacturers have faced stringent emission regulations on oxides of nitrogen (NOx) and unburned hydrocarbons (UHC) [1, 2]. Operating internal combustion engines at ultra-lean conditions can reduce NOx emissions and also improve thermal efficiency [3, 4].
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MILD Combustion: the Future for Lean and Clean Combustion Technology

International Review of Mechanical Engineering (IREME), 2014
The future of today's society is greatly depending on the energy development. Due to the depletion of fossil fuel and the gradual development of energy generation from renewable sources, energy security becomes an important intergovernmental issue. This paper discusses the energy needs and the new combustion technology that will aid in achieving lean ...
Noor, M. M., Wandel, Andrew P., Yusaf, Talal   +2 more
openaire   +1 more source

Lean Combustion in Spark-Ignited Internal Combustion Engines - A Review

SAE Technical Paper Series, 1983
<div class="htmlview paragraph">Lean combustion in spark-ignition engines has long been recognized as a means of both improving engine efficiency and lowering carbon monoxide and oxides of nitrogen exhaust emissions. In this paper, the fundamentals of lean combustion are reviewed in terms of lean flammability and ignition, and lean misfire limit,
Geoff J. Germane, Carl G. Wood, Clay C. Hess   +2 more
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3 - Highly Preheated Lean Combustion

2016
This chapter faces with the outstanding challenge of giving an objective and quantitative classification of moderate and intense low oxygen dilution (MILD)/high-temperature air combustion (HiTAC) combustion regimes based on measurable process status variables (ie, temperature and/or temperature increase).
A Cavaliere, M de Joannon, P Sabia, G Sorrentino, R Ragucci   +4 more
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A Study of the Transition Between Lean Conventional Diesel Combustion and Lean, Premixed, Low-Temperature Diesel Combustion

Journal of Engineering for Gas Turbines and Power, 2007
New diesel combustion modes face difficult challenges with respect to engine-out emissions and transient behavior. Transitions between lean conventional diesel combustion and lean, premixed, low-temperature diesel combustion are investigated with an automotive diesel engine. Effects of fuel pressure on transitional cycles are investigated.
Stephen Busch, Stanislav V. Bohac, Dennis N. Assanis   +2 more
openaire   +1 more source