Experimental Investigation of the Benefits of Cooled and Extra-cooled Low-Pressure EGR on a Light Duty Diesel Engine Performance
The present paper describes an experimental study on the application of a Low Pressure EGR system, equipped with an high efficiency cooler, to a LD diesel engine operating with both conventional combustion and PCCI mode. The research activity is aimed to carry out an analysis of the potentiality of the cooling (with engine water at 90°C) and super-cooling (with external water at 20°C) of the low pressure EGR flow gas on the simultaneous reduction of fuel consumption and pollutant emissions. The effects were evaluated running the engine with diesel conventional combustion and PCCI mode in several engine operating points. The employed engine was a 4-cyliders LD CR diesel engine of two liters of displacement at the state of art of the current engine technology. The overall results identified benefits on both the fuel consumption and emissions with the use of a low pressure EGR system with respect to the “classical” high pressure EGR one. The cooled EGR system showed advantage mainly at medium and high speed/load operating points.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/19463952
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Supplemental Notes:
- Abstract reprinted with permission of SAE International.
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Authors:
- Beatrice, Carlo
- Bertoli, Claudio
- Giacomo, Nicola Del
- Guido, Chiara
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Conference:
- 9th International Conference on Engines and Vehicles
- Location: Naples , Italy
- Date: 2009-9-13 to 2009-9-18
- Publication Date: 2009-9-13
Language
- English
Media Info
- Media Type: Web
- Features: Figures; References; Tables;
- Pagination: pp 398-412
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Serial:
- SAE International Journal of Fuels and Lubricants
- Volume: 2
- Issue Number: 2
- Publisher: SAE International
- ISSN: 1946-3952
- EISSN: 1946-3960
- Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-04/
Subject/Index Terms
- TRT Terms: Compression ignition engines; Diesel engines; Engine performance; Exhaust gas recirculation; Exhaust gases; Fuel consumption; Pollutants; Vehicle performance
- Subject Areas: Energy; Highways; Vehicles and Equipment;
Filing Info
- Accession Number: 01636417
- Record Type: Publication
- Source Agency: SAE International
- Report/Paper Numbers: 2009-24-0126
- Files: TRIS, SAE
- Created Date: May 26 2017 11:31AM