Proceedings ArticleDOI
High Combustion Temperature for the Reduction of Particulate in Diesel Engines
TLDR
In this paper, the effects of temperature T and equivalence ratio Φ on soot formation at high pressures up to 5 MPa were investigated in a diesel engine and the trajectory in relation to both soot and NO formation region gives suggestion of a possibility of high temperature mixture combustion to reduce particulate formation in diesel engines.Abstract:
Experiments on the effects of temperature T and equivalence ratio Φ on soot formation at high pressures up to 5 MPa were conducted. Discussion of the trajectory in relation to both soot and NO formation region gives suggestion of a possibility of high temperature ― rich mixture combustion to reduce particulate formation in diesel enginesread more
Citations
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Proceedings ArticleDOI
A Conceptual Model of DI Diesel Combustion Based on Laser-Sheet Imaging*
TL;DR: In this paper, a phenomenological description of how direct-injection (DI) diesel combustion occurs has been derived from laser-sheet imaging and other recent optical data, which is summarized in a series of idealized schematics that depict the combustion process for a typical, modern-diesel-engine condition.
Journal ArticleDOI
Soot processes in compression ignition engines
Dale R. Tree,Kenth I. Svensson +1 more
TL;DR: In this paper, a conceptual model based on in-cylinder soot and combustion measurements was used to explain the trends seen in exhaust particulate emissions and showed that diesel engine emissions control involves multi-injection combustion strategies which are transforming the picture of diesel combustion rapidly into a series of low temperature, stratified charge, premixed combustion events where NO x formation is avoided by leaning the mixture or increasing air entrainment prior to ignition.
Journal ArticleDOI
Experiments and Modeling of Dual-Fuel HCCI and PCCI Combustion Using In-Cylinder Fuel Blending
Proceedings ArticleDOI
The Influence of Charge Dilution and Injection Timing on Low-Temperature Diesel Combustion and Emissions
TL;DR: In this article, the effects of charge dilution on low-temperature diesel combustion and emissions were investigated in a small-bore single-cylinder diesel engine over a wide range of injection timing.
References
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Journal ArticleDOI
Composition profiles and reaction mechanisms in a near-sooting premixed benzene/oxygen/argon flame
J. D. Bittner,Jack B. Howard +1 more
TL;DR: In this paper, the structure of a flat low-pressure laminar benzene-oxygen-argon flame was studied using a molecular beam mass spectrometer system and Mole fraction profiles of fifty-one species are presented and their mechanistic implications are discussed with regard to the decay of benzene and the formation of polycyclic aromatic hydrocarbons and soot.
Journal ArticleDOI
Fundamentals of soot formation in flames with application to diesel engine particulate emissions
TL;DR: Experimental evidence obtained on a wide variety of different combustion systems (premixed and diffusion flames, perfectly stirred reactors, etc) and with different fuels indicates that chemical kinetics is the dominant rate process governing the emission of soot from the system 56 refs as discussed by the authors.
Proceedings ArticleDOI
Adiabatic turbocompound engine performance prediction
Roy Kamo,Walter Bryzik +1 more
TL;DR: In this paper, an adiabatic turbocompound diesel engine is analyzed to demonstrate that the contemporary diesel cycle without a cooling system could be the beginning of a new era in continued diesel engine efficiency, reliability and durability.
Journal ArticleDOI
Soot formation rates in premixed C5 and C6 hydrocarbonair flames at pressures up to 20 atmospheres
TL;DR: In this article, a study of soot formation in premixed flames of several C 5 and C 6 hydrocarbons using a 0·5 in. diameter laboratory flame operating at constant velocity and at pressures up to 20 atmospheres was made.
Proceedings ArticleDOI
Effect of High Pressure Injection on Soot Formation Processes in a Rapid Compression Machine to Simulate Diesel Flames
TL;DR: In this paper, the characteristics of diesel spray and flame in a quiescent atmosphere were studied as a function of injection pressure ranging from 30 to 110 MPa, and the results showed that high pressure injection improves the atomization and air entrainment of non-evaporating spray and that the liquid phase penetration of evaporating spray is hardly affected by injection pressure.