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The Effect of Exhaust Gas Recirculation on Combustion and NOx Emissions in a High-Speed Direct-injection Diesel Engine
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Abstract
A number of tests were conducted on a 2.5 litre, high-speed, direct-injection diesel engine running at various loads and speeds. The aim of the tests was to gain understanding which would lead to more effective use of exhaust gas recirculation (EGR) for controlling exhaust NOx. In addition to exhaust emission measurements, extensive in-cylinder sampling of combustion gases was carried out using a fast-acting, snatch-sampling valve. The results showed that the effectiveness of EGR in suppressing NOx was enhanced considerably by intercooling the inlet charge and by cooling the EGR.
A companion paper (SAE 960841) deals with the effects of EGR on soot formation and emission [1].
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Citation
Ladommatos, N., Balian, R., Horrocks, R., and Cooper, L., "The Effect of Exhaust Gas Recirculation on Combustion and NOx Emissions in a High-Speed Direct-injection Diesel Engine," SAE Technical Paper 960840, 1996, https://doi.org/10.4271/960840.Also In
References
- Ladommatos, N. Balian, R. Horrocks, R. Cooper, L. The effect of exhaust gas recirculation on soot formation in a high-speed direct-injection diesel engine SAE paper 960841
- Durnholz, M. Eifler, G. Endres, H. Exhaust-gas recirculation - a measure to reduce exhaust emissions of a DI diesel engine SAE paper 920725 1992
- Heywood, J.B. Internal Combustion Engine Fundamentals McGraw-Hill London 1988
- Plee, S.L. Ahmad. T. Myers. J.P. Diesel NO x Emissions - A simple correlation technique for intake air effects Proceedings of 9th International Symposium on Combustion 1495 1502 The Combustion Institute Pittsburgh 1983
- Ahmad. T. Plee. S.L. Application of flame temperature correlations to emissions from a Direct-Injection diesel engine SAE Paper 831734 SAE Transactions 92 1983
- Wilson, R.P. Muir, E.B. Pellicciotti, F.A. Emissions study of single-cylinder diesel engine SAE paper 740123 1974
- Pipho, M.J. Kittelson, D.B. Zarling, D.D. NO 2 formation in a diesel engine SAE paper 910231 1991
- Hilliard, J.C. Wheeler. R.W. Nitrogen dioxide in engine exhaust SAE 790691 SAE Trans. 88 1979