Journal
ENERGY
Volume 244, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2022.123129
Keywords
Diesel engine; Canola biodiesel; Combustion; Performance; NOx
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Funding
- TUBITAK [104M256]
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Biodiesel fuels produce higher NOx emissions in diesel engines, and this study investigated three techniques to mitigate the issue. The results showed that exhaust gas recirculation and injection retardation are effective methods, while ethanol addition did not significantly improve performance.
Biodiesel fuels have been used in diesel engines at different ratios without modifications in the engines. However, the biodiesel fuels generally generate higher NOx emissions than those of the diesel fuel and the related investigations on the higher NOx problem are still ongoing. In this study, three moderation techniques namely exhaust gas recirculation, injection retardation and ethanol addition were comparatively addressed for B10 biodiesel blend (10% canola biodiesel and 90% diesel fuel in vol.). The experimental results revealed that the exhaust gas recirculation of 5% is a suitable method in improving the combustion parameters of B10 biodiesel blend, while the retarded injection timing of 2 C & nbsp; is the most effective method regarding both the performance and emission parameters. No favorable effect of 2% ethanol addition to B10 biodiesel blend at retarded injection timing was observed on the performance, and coefficient of variation of indicated mean effective pressure was increased by over 10%. However, all methods examined in this study have effective potentials in the decrease of NOx emissions of the diesel engine running with the B10 biodiesel blend. (C)& nbsp;2022 Elsevier Ltd. All rights reserved.
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