This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Investigation on Performance, Combustion and Emission Characteristics of a Turbocharged Low Heat Rejection DI Diesel Engine with Extended Expansion Concept
Technical Paper
2009-28-0006
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The fundamental aim of extended expansion concept is to achieve higher work done, which in turn leads to higher thermal efficiency. This concept is compatible with turbocharged engines incorporated with ceramic laced components. Higher efficiency in four stroke engine was achieved by delaying inlet valve closing and exhaust valve opening with the aid of cam lobes. Extended Expansion in diesel engine (miller cycle) was made possible by reducing compression stroke which in turn results in a longer expansion stroke. Experimental investigation was carried out under different load condition conditions on a four cylinder turbocharged DI diesel engine under low heat rejection conditions by using partially stabilized zirconia (PSZ) coating of thickness 0.5 mm to the combustion chamber with modified valve timing. The results was observed with 6% of reduced specific fuel consumption and 13.5% increase in peak pressure, when compared to conventional diesel engine. Emissions of hydrocarbon is reduced where as NOx is increased.
Authors
Topic
Citation
Bernard S, S., "Investigation on Performance, Combustion and Emission Characteristics of a Turbocharged Low Heat Rejection DI Diesel Engine with Extended Expansion Concept," SAE Technical Paper 2009-28-0006, 2009, https://doi.org/10.4271/2009-28-0006.Also In
References
- Nagesh, M.S. Govinda Mallan, K.R. Gopalakrishnan, K.V “Experimental Investigation on Extended Expansion Engine,” SAE Paper 920452 February 1992
- Kamo Roy Nagesh, S. Mavinahally, Lloyd Kamo “Emission Comparisons of an Insulated Turbocharged Multi-Cylinder Miller Cycle Diesel Engine,” SAE Paper 980888 February 1998
- Wang, Y. Zeng, S. Huang, X. Lin, L. LI, S. “Experimental Investigation of applying Miller Cycle to reduce NOx Emission from Diesel Engine,” 219 Part A J.Power and Energy
- Chan, S.H. Khor, S.H. “The Effect of Thermal Barrier Coated Piston Crown on Engine Characteristics,” Journal of Material Engineering Performance 2009 9 103 109
- Lancefield Tim Methley Ian Rase Ulf Kuhn Thomas “The Application of Variable Event Valve Timing to a Modern Diesel Engine,” SAE Paper 2000-01-1229
- Yonushonis, T.M. “Overview of Thermal Barrier Coating in Diesel Engines,” Journal of Thermal Spray Technology 6 50 56
- Saad Dorsaf Saad Phillipe Kamo Lloyd “Thermal Barrier Coating for High Output Turbocharged Diesel Engine” SAE Paper 2007-01-1442
- Mallikarjuna, J.M. Ganesan, V. “Numerical Prediction and Experimental Investigations on Extended Expansion Engine Performance and Exhaust Emission.” SAE Paper 2000-01-1415
- Taraza Dinu Henein Naeim “Friction Losses in Multi-Cylinder Diesel Engines” SAE Paper 2000-01-0921
- Jaichandar, s. Tamilporai “The status of Experimental Investigations on Low Heat Rejection Engines” SAE Paper 2004-01-1453
- Kamo Roy Nagesh, S. Mavinahally, Lloyd Kamo “Injection Characteristics that improve Performance of Ceramic Coated Diesel Engines” SAE Paper 1999-01-0972
- Moore, C. Hoehne, J. “Combustion Chamber Insulation Effect on the Performance of a Low Heat Rejection Cummins V-903 Engine,” SAE Paper 860317 1986