Development of a Unique Plasma Burner System for Emission Reduction During Cold Start of Diesel Engines

2014 ◽  
Author(s):  
Sung Hyun Pyun ◽  
Dae Hoon Lee ◽  
Kwan Tae Kim
Keyword(s):  
Diesel Engines ◽  
Emission Reduction ◽  
Cold Start ◽  
Plasma Burner

Environment-adaptive method to control intake preheating for diesel engines at cold-start conditions

Energy ◽  
2021 ◽  
pp. 120423
Author(s):  
Yikai Li ◽  
Dongfang Wang ◽  
Zhongjie Shi ◽  
Haiyan Chen ◽  
Fushui Liu
Keyword(s):  
Diesel Engines ◽  
Cold Start ◽  
Adaptive Method

scholarly journals Influence of spray-glow plug configuration on cold start combustion for high-speed direct injection diesel engines

Energy ◽  
2011 ◽  
Vol 36 (9) ◽  
pp. 5486-5496 ◽  
Author(s):  
J.V. Pastor ◽  
V. Bermúdez ◽  
J.M. García-Oliver ◽  
J.G. Ramírez-Hernández
Keyword(s):  
Diesel Engines ◽  
High Speed ◽  
Direct Injection ◽  
Cold Start ◽  
Glow Plug

Molecular Simulation of the Adsorption of Cold Start Hydrocarbons Emission from Diesel Engines in Zeolite

2013 ◽  
Vol 779-780 ◽  
pp. 521-524
Author(s):  
Yuan Wang Deng ◽  
Wei Han ◽  
Liang Yin
Keyword(s):  
Binary Mixtures ◽  
Adsorption Isotherms ◽  
Diesel Engines ◽  
Cold Start ◽  
Pure Component ◽  
Grand Canonical Monte Carlo ◽  
Adsorption Behaviors ◽  
Lta Zeolite ◽  
Gcmc Simulation ◽  
Grand Canonical

A better understanding of the adsorption behaviors of hydrocarbons on adsorbent would help trap the hydrocarbons emitted from diesel engines during cold start period more efficiently. In this paper, the adsorption behaviors of hydrocarbons in LTA zeolite was studied using Grand Canonical Monte Carlo (GCMC) simulation. The adsorption isotherms and mass clouds are obtained for both pure component and binary mixtures under certain temperatures. The adsorption isotherms reveal that the average loading of ethylene and propylene has the similar trend. Both of them increase with the increase of pressure and decrease significantly with the increase of temperature. The binary mixtures show competitive adsorption behavior. Propylene is adsorbed much more strongly than ethylene in LTA zeolite. The obtained mass clouds show that propylene distributes in both the α cage and β cage of the LTA zeolite, while ethylene distributes mainly in the β cage of the LTA zeolite.

Internal EGR Systems for NOx Emission Reduction in Heavy-Duty Diesel Engines

2004 ◽  
Author(s):  
John Schwoerer ◽  
Sotir Dodi ◽  
Marty Fox ◽  
Shengqiang Huang ◽  
Zhou Yang
Keyword(s):  
Diesel Engines ◽  
Emission Reduction ◽  
Nox Emission ◽  
Heavy Duty ◽  
Heavy Duty Diesel

A Fundamental Thermodynamic Study on the Effects of Engine Scale in Diesel Engines

2019 ◽  
Author(s):  
Kevin J. Burnett ◽  
Ashwani K. Gupta ◽  
Jim S. Cowart
Keyword(s):  
Heat Transfer ◽  
Surface Area ◽  
Wall Temperature ◽  
Diesel Engines ◽  
Cold Start ◽  
Cylinder Wall ◽  
Piston Speed ◽  
Heat Effects ◽  
Wide Range ◽  
Significant Difference

Abstract The Navy has a wide range of diesel engines with bore sizes varying by a factor of four. In general, diesel engines can have bore scaling over a full order of magnitude. As an engine cylinder gets larger its surface area to volume ratio reduces significantly, which in turn affects in-cylinder heat transfer. In this study, a fundamental generalized thermodynamic model of diesel engines was developed. The various key model effects were systematically analyzed along with engine bore size. Further, cylinder wall temperature was varied across a range of cold start to stabilized operating temperatures. The results of this study show that smaller bore diesel engines are always more sensitive to cold start conditions. The effect is reduced with increasing wall temperature yet smaller diesel engines have cooler end-of-compression temperatures as comparted to larger engines. The effects of engine speed, in which mean piston speed is held constant, tend to modestly reduce the differences between various size diesel engines due to non-linear heat transfer effects. When variable specific heat effects are correctly considered, end-of-compression air charge temperatures are only modestly different as a function of engine bore size. The most significant difference is the overall reduced heat transfer in larger engines due to the surface area to volume effect. A difference of a factor of three for in cylinder heat transfer relative to in-cylinder inducted air mass is predicted being much greater for the smaller engines. Higher exhaust temperatures are also characteristic of the larger bore engines. This allows more combustion work to be delivered to the piston with a correspondingly higher thermal efficiency for larger diesel engines. Future work will evaluate fuel effects on varying bore size.

Sign in / Sign up

Export Citation Format

Share Document