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NOx Reduction in a Medium-Speed Single-Cylinder Diesel Engine using Miller Cycle with Very Advanced Valve Timing
Technical Paper
2009-24-0112
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The objective of this study is to achieve high reduction of NOx emissions in a medium-speed single-cylinder research engine. The main feature of this research engine is that the gas exchange valve timing is completely adjustable with electro-hydraulic actuators. The study is carried out at high engine load and using a very advanced Miller valve timing. Since the engine has no turbocharger, but a separate charge air system, 1-D simulations are carried out to find the engine setup, which would be close to the operating points of a real engine. The obtained NOx reduction is over 40% with no penalty in fuel consumption.
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Authors
- Matteo Imperato - TKK, Helsinki University of Technology, Finland
- Eero Antila - TKK, Helsinki University of Technology, Finland
- Teemu Sarjovaara - TKK, Helsinki University of Technology, Finland
- Ossi Kaario - TKK, Helsinki University of Technology, Finland
- Martti Larmi - TKK, Helsinki University of Technology, Finland
- Ilari Kallio - Wärtsilä Finland Oy
- Sten Isaksson - Wärtsilä Finland Oy
Citation
Imperato, M., Antila, E., Sarjovaara, T., Kaario, O. et al., "NOx Reduction in a Medium-Speed Single-Cylinder Diesel Engine using Miller Cycle with Very Advanced Valve Timing," SAE Technical Paper 2009-24-0112, 2009, https://doi.org/10.4271/2009-24-0112.Also In
References
- Miller, R. Lieberherr, H. U. “The Miller Supercharging System for Diesel and Gas Engines operating Characteristics” CIMAC Proceedings Zurich 1957
- Zappa G. Franca T. “A 4-Stroke High Speed Diesel Engine with Two-Stage of Supercharging and Variable Compression Ratio” CIMAC 1979
- Bolton, B. K. Assanis, D. N. ”Optimum Breathing Strategies for Turbochrged Diesel Engines Based on the Miller Cycle Concept” Engineering Systems Design and Analysis ASME 1994
- Nazar, J. Gopalakrishnan, K. V. Mavinahlly, N. S. “Naturally Aspired Low Heat Rejection Single Cylinder Extended Expansion (Miller Cycle) C.I. Engine” SAE Paper 970202 1997
- Edwards, S. P. Frankel, G. R. Wirbeleit, F. Raab A. “The Potential of a Combined Miller Cycle and Internal EGR Engine for Future Heavy Duty Truck Applications” SAE Paper 980180 1998
- Millo F. Mallamo F. Ganio Mego G. “The Potential of Dual Stage Turbocharging and Miller Cycle for HD Diesel Engine” SAE Paper 2005-01-0221 2005
- Kallio I. Rantanen, P. Imperato, M. Antila, E. Sarjovaara, T. Larmi, M. Huhtala, K. Liljenfeldt, G. “The Design and Operation of the Fully Controllable Medium-Speed Research Engine EVE” CIMAC Paper 163 2007
- Herranen, M Huhtala, K. Vilenius, M. Liljenfeldt, G. “The Electro-Hydraulic Valve Actuation for Medium Speed Diesel Engines – Development Steps with Simulation and Measurements” SAE Paper 2007-01-1289 2007
- Gamma Technologies Inc. “GT-Power User's Manual” 2004
- Heywood, J. B. “Internal Combustion Engine Fundamentals” Singapore McGraw-Hill series in mechanical engineering 930 0-07-100499-8
- Turunen R. Kallio I. Leino A. Rantanen P. Suokas M. Karila K. Ranta O. Aaltonen J. Liljenfeldt G. “Design and First Operating Experiences With Extreme Value Research Engine EVE” CIMAC Paper 32 2004
- Egnell, R. “Combustion Diagnostics by Means of Multizone Heat Release Analysis and NO Calculation” SAE Paper 981424 1998
- “Internal Combustion Engine Handbook” Canada Richard van Basshuysen and Fred Schäfer 811 0-7680-1139-6
- International Standard, ISO 8178-4 “Reciprocating Internal Combustion Engines – Exhaust Emission Measurement” Genève 1996