Results 261 to 270 of about 56,122 (303)

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
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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
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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
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Catalytic combustion of lean methane–air mixtures

Catalysis Today, 1999
Abstract Catalytic combustion of lean methane–air mixtures was studied on supported iron oxide and platinum monolith catalysts. Flameless catalytic combustion was investigated in the temperature range 600–900°C, GHSV up to 10 000 h−1, and methane concentration in initial gas mixture 1–9 vol%.
V.A. Sazonov, Z.R. Ismagilov, N.A. Prokudina   +2 more
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Lean combustibility limit of methane in reciprocal flow filtration combustion reactor

International Journal of Heat and Mass Transfer, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dobrego, K. V., Gnesdilov, N. N., Lee, S. H., Choi, H. K.   +3 more
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Development of the Toyota Lean Combustion System

SAE Technical Paper Series, 1985
<div class="htmlview paragraph">The lean combustion of an SI engine has been recognized as one of the most promising methods for further improvement of fuel economy. There has been, however, difficulty in extending the lean misfire limit enough to realize NOx emission levels below the mandatory level and still keep satisfactory driveability.< ...
Souich Matsushita, Tokuta Inoue, Kiyoshi Nakanishi, Kenji Kato, Nobuyuki Kobayashi   +4 more
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Combustion properties of aluminum-based oxidizer-lean propellants

2017
The use of airbreathing devices in the first phase of an acceleration/launch mission provides several advantages with respect to traditional solid rocket motors, including consistent savings in terms of payload and costs. In a ducted rocket, fuel-rich combustion products of an oxidizer-lean propellant burning in a gas-generator, are ejected in the ...
Zadra, F., MAGGI, FILIPPO, GALFETTI, LUCIANO   +2 more
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