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Reduction of Pollutant Emissions in a HD Diesel Engine by Adjustment of Injection Parameters, Boost Pressure and EGR
Technical Paper
2003-01-0343
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The purpose of the study reported in this paper was to exploit the possibility of adjusting some injection parameters in a diesel engine fitted with a common-rail injection system with the final goal of reducing pollutant emissions. Starting from the original settings, several injection parameters like nozzle hole diameter, injection pressure and injection duration, were adjusted following three different injection strategies, trying to produce some specific fuel spray patterns (spray penetration and cone angle, air entrainment, etc). Additionally, boost pressure was modified, in order to control spray-air interaction, and EGR was introduced to achieve the required NOx reduction. The adjusted injection setting allowed to generate starting values in pollutants emissions very tolerant to EGR, in such a way that the achieved reduction of NOx was not frustrated by an excessive increase in PM emissions.
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Authors
- Francisco Payri - CMT-Motores Térmicos, Universidad Politécnica de Valencia
- Jesús Benajes - CMT-Motores Térmicos, Universidad Politécnica de Valencia
- Santiago Molina - CMT-Motores Térmicos, Universidad Politécnica de Valencia
- J. Manuel Riesco - CMT-Motores Térmicos, Universidad Politécnica de Valencia
Topic
Citation
Payri, F., Benajes, J., Molina, S., and Riesco, J., "Reduction of Pollutant Emissions in a HD Diesel Engine by Adjustment of Injection Parameters, Boost Pressure and EGR," SAE Technical Paper 2003-01-0343, 2003, https://doi.org/10.4271/2003-01-0343.Also In
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