Numerical simulation on effects of nozzle hole cone angle on combustion and emissions in a diesel engine

Author

Zhang, Jing ; Ren, Jiachao

Author_Institution

State Key Lab. of Engines, Tianjin Univ., Tianjin, China

fYear

2011

fDate

15-17 April 2011

Firstpage

5138

Lastpage

5142

Abstract

The combustion process and emission characteristics in diesel engine mainly depend on the mixture formation in cylinder. Spray characteristic is an important factor which affects the mixture formation and combustion process. Further, nozzle hole cone angle of the fuel injector directly influence the spray characteristic. In this paper, flow evolution process, spray distribution, fuel/air ratio equivalence ratio distribution, temperature distribution and emissions formation are analyzed. The results show that: mixture formation quality can be improved if selecting the nozzle hole cone angle appropriately, and therefore combustion process will be improved and emissions will be reduced.

Keywords

air pollution control; automotive engineering; combustion; diesel engines; nozzles; numerical analysis; sprays; cylinder mixture formation; diesel engine combustion; diesel engine emission; emission formation; flow evolution process; fuel injector; fuel-air ratio equivalence ratio distribution; nozzle hole cone angle effect; numerical simulation; spray characteristic; spray distribution; temperature distribution; Atmospheric modeling; Combustion; Diesel engines; Fires; Fuels; Manuals; diesel engine; emission; nozzle hole cone angle; numerical simulation; spray distribution;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Information and Control Engineering (ICEICE), 2011 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-8036-4

Type

conf

DOI

10.1109/ICEICE.2011.5777107

Filename

5777107