Results 261 to 270 of about 12,068 (311)
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NO(x) model for lean combustion concept
28th Joint Propulsion Conference and Exhibit, 1992In an effort to reduce the emissions produced by gas turbine combustors to meet the expected trends of more stringent regulations, a model to calculate NOx produced by lean combustion concepts is proposed. The model simulates the combustor by a number of reactors representing the main combustion as well as pilot zones.
N. K. Rizk, H. C. Mongia
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Highly Preheated Lean Combustion
2008The terms “high temperature air combustion (HiTAC)” and “moderate and intense low-oxygen dilution (MILD)” combustion have only recently been defined. First published in the Combustion Institute Proceedings in 1998 (Katsuki and Hasegawa, 1998) and then in the Mediterranean Combustion Symposium Proceedings in 2000 (de Joannon et al., 2000), the ...
A Cavaliere, M de Joannon, R Ragucci
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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, 2000Macrolamination, 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 +3 more
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Lean combustion stability of spark ignition engines
Proceedings of 2003 IEEE Conference on Control Applications, 2003. CCA 2003., 2004Literature shows that by controlling engines at extreme lean operating conditions (equivalence ratio
Pingan He 0002, Sarangapani Jagannathan
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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 +2 more
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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 +2 more
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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 +3 more
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Vortex Generators in Lean-Premix Combustion
Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations, 1998A novel fuel-air mixing technique on the basis of vortex generators has been developed and successfully implemented in the worlds first lean-premix reheat combustor of ABB’s GT24/GT26 series industrial gas turbines. This technique uses a special arrangement of delta-wing type vortex generators to achieve rapid mixing through longitudinal vortices ...
A. Eroglu +3 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 +2 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 +4 more
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Multipoint Spark Ignition for Lean Combustion
SAE Technical Paper Series, 1985<div class="htmlview paragraph">Effects of multipoint spark ignition on combustion duration, fuel consumption and lean misfire limit are discussed in this paper.</div> <div class="htmlview paragraph">A plate, which consists of 12 spark gaps in each cylinder, and a new CD ignition system have been developed for accomplishing the ...
Norihiko Nakamura +2 more
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