Influence of engine load and speed on regulated and unregulated emissions of a diesel engine fueled with diesel fuel blended with waste cooking oil biodiesel

Influence of engine load and speed on regulated and unregulated emissions of a diesel engine... This study is focused on investigating the regulated and unregulated emissions of a 4-cyclinder natural-aspirated direct-injection diesel engine fueled with neat diesel fuel, B10 (diesel containing 10vol.% of biodiesel), B20, B30 and neat biodiesel (B100). Experiments were conducted on the Japanese 13-mode test cycle for the diesel engine so that the influence of engine load and engine speed on the regulated and unregulated emissions can be identified. The 13-mode weighted results show that with an increase of biodiesel in the blended fuel, there are reductions of HC, CO and particulate mass concentrations but an increase in NOx. For the unregulated emissions, formaldehyde and acetaldehyde emissions increase with increasing biodiesel content. The same trend can be observed for 1,3-butadiene, propene and ethene. For the aromatics emissions, biodiesel addition leads to an increase in benzene emission but reductions in toluene and xylene emissions. The results also show that all the emissions are affected by the engine operating modes, especially the engine load. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Fuel Elsevier

Influence of engine load and speed on regulated and unregulated emissions of a diesel engine fueled with diesel fuel blended with waste cooking oil biodiesel

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Publisher
Elsevier
Copyright
Copyright © 2016 Elsevier Ltd
ISSN
0016-2361
D.O.I.
10.1016/j.fuel.2016.04.007
Publisher site
See Article on Publisher Site

Abstract

This study is focused on investigating the regulated and unregulated emissions of a 4-cyclinder natural-aspirated direct-injection diesel engine fueled with neat diesel fuel, B10 (diesel containing 10vol.% of biodiesel), B20, B30 and neat biodiesel (B100). Experiments were conducted on the Japanese 13-mode test cycle for the diesel engine so that the influence of engine load and engine speed on the regulated and unregulated emissions can be identified. The 13-mode weighted results show that with an increase of biodiesel in the blended fuel, there are reductions of HC, CO and particulate mass concentrations but an increase in NOx. For the unregulated emissions, formaldehyde and acetaldehyde emissions increase with increasing biodiesel content. The same trend can be observed for 1,3-butadiene, propene and ethene. For the aromatics emissions, biodiesel addition leads to an increase in benzene emission but reductions in toluene and xylene emissions. The results also show that all the emissions are affected by the engine operating modes, especially the engine load.

Journal

FuelElsevier

Published: Sep 15, 2016

References

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