NOx Reduction in a Medium-Speed Single-Cylinder Diesel Engine using Miller Cycle with Very Advanced Valve Timing 2009-24-0112
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.
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. Download Citation
Author(s):
Matteo Imperato, Eero Antila, Teemu Sarjovaara, Ossi Kaario, Martti Larmi, Ilari Kallio, Sten Isaksson
Affiliated:
TKK, Helsinki University of Technology, Finland, Wärtsilä Finland Oy
Pages: 10
Event:
9th International Conference on Engines and Vehicles
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Nitrogen oxides
Diesel / compression ignition engines
Fuel consumption
Turbochargers
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