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Journal of Applied Sciences
  Year: 2010 | Volume: 10 | Issue: 22 | Page No.: 2823-2830
DOI: 10.3923/jas.2010.2823.2830
 
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Effects of Injection Timing and EGR on DI Diesel Engine Performance and Emission-using CFD

A. Gunabalan, P. Tamilporai and R. Ramaprabhu

Abstract:
The aim of present study was to investigate the effect of early injection and EGR on engine performance and emission. This entire computational study was modelled by using the commercial CFD code - STAR-CD. Using this code, the timing of early injection and EGR fraction was varied to investigate their effect on pollutant emissions. The injection timing and EGR fraction was also optimised for better engine performance and Emissions. Due to stringent emission norms, there is an immediate need to address the issue of emission control from automobile exhaust and related technologies. NOx and PM are the major pollutants from Diesel engine exhaust. The fuel injection system is the heart of the diesel engine and with the advance of electronically controlled fuel injection, multiple injection, High injection pressure, retarded injection timing, EGR and high swirl ratio have all been used to improve performance and reduce emissions. Combustion of fuel can also be optimised leading to leaner operation and lesser emissions. Each technology has its own merits and demerits and there exists strong interaction between these methods when they are simultaneously employed.
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How to cite this article:

A. Gunabalan, P. Tamilporai and R. Ramaprabhu, 2010. Effects of Injection Timing and EGR on DI Diesel Engine Performance and Emission-using CFD. Journal of Applied Sciences, 10: 2823-2830.

DOI: 10.3923/jas.2010.2823.2830

URL: https://scialert.net/abstract/?doi=jas.2010.2823.2830

COMMENTS
02 May, 2013
willard:
I still want to know what causes exhaust smoke to irritates eyes is it a sign of early or late injection timing?
02 May, 2013
willard:
Thanks for your attention l will be glad if you can respond to my question.
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