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Morphology, composition, and structure of carbon deposits from diesel and biomass oil/diesel blends on a pintle-type fuel injector nozzle

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Nov 2015Publisher:Elsevier BVJournal:Tribology International, volume 91, pages 189-196 (issn: 0301-679X,

Authors: Enzhu Hu; Karl D. Dearn; Yufu Xu; Ruhong Song; Xianguo Hu; Hengzhou Wo;

doi: 10.1016/j.triboint.2015.07.003

Morphology, composition, and structure of carbon deposits from diesel and biomass oil/diesel blends on a pintle-type fuel injector nozzle

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Abstract

Abstract A biomass oil/diesel blend was prepared using an emulsion method and combusted in a diesel engine. An injector was then removed and the morphology, composition, and structure of the carbonaceous deposits on the pintle-type nozzle were characterized using a combination of HRTEM, SEM/EDAX, Raman and XRD. Results showed that the carbon deposition of the emulsified fuel with high crystallinity was greater than that of diesel. The agglomerated particulate diameters of the deposited carbon from diesel and emulsified fuel were approximately 10–30 μm and 50 μm, respectively. The carbon deposition mechanism from the emulsified fuel was attributed to the high oxygen content of the groups leading to increased polymerization and subsequent condensation on the nozzle surfaces that was then carbonised.

Related Organizations

Hefei University of Technology
China (People's Republic of)
University of Birmingham
United Kingdom
Hefei University of Technology
China (People's Republic of)

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