Performance, emissions and carbon deposit characteristics of diesel engine operating on emulsion fuel

Performance, emissions and carbon deposit characteristics of diesel engine operating on emulsion fuel

Little is known about the effects of using emulsion fuel for extended operation hours. Emulsion fuels comprise of water, low grade diesel fuel (D2) and surfactant in the ratio of 10:89:1 v/v% (E10) and 20:79:1 v/v% (E20). The characteristics of carbon deposits from an engine after a run of 200 h wer...

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Bibliographic Details
Published in:Energy (Oxford) Vol. 142; pp. 496 - 506
Main Authors: Hasannuddin, A.K., Yahya, W.J., Sarah, S., Ithnin, A.M., Syahrullail, S., Sugeng, D.A., Razak, I.F.A., Abd Fatah, A.Y., Aqma, W.S., Rahman, A.H.A., Ramlan, N.A.
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 01-01-2018
Elsevier BV
Subjects:
Carbon
Carbon deposit
Diesel
Diesel engine
Diesel engines
Emulsion fuel
Fourier transform infrared
Fourier transforms
Infrared analysis
Metal concentrations
Moisture content
Nitrogen oxides
Oxides
Particulate emissions
Particulate matter
Photochemicals
Thermogravimetric analysis
Water content
Emulsion fuel
Diesel engine
Thermogravimetric analysis
Fourier transform infrared
Carbon deposit
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Summary:Little is known about the effects of using emulsion fuel for extended operation hours. Emulsion fuels comprise of water, low grade diesel fuel (D2) and surfactant in the ratio of 10:89:1 v/v% (E10) and 20:79:1 v/v% (E20). The characteristics of carbon deposits from an engine after a run of 200 h were examined. The carbon deposit analysis performed were macroscopic/microscopic photographs, thermogravimetric analysis (TGA), metal element analysis (MEA) and Fourier transform infrared (FTIR). Increasing water in emulsion fuel decreased particulate matter (PM) and nitrogen oxides (NOx) altogether. TGA results observed that carbon deposit of E10 engine differed from E20 and D2 engines in terms of its characteristics, which includes darker colour of carbon deposit and the higher volatile content, while the MEA results observed that the elemental metal concentration in the carbon deposit was reduced with increasing water content. The intensity of the spectrum from CH group for the carbon deposit E10 engine was higher compared to carbon deposit D2 and E20 engine respectively due to a complete combustion. Therefore, it was observed that 10% or less water content delivered better fuel consumption, emissions, and carbon deposit. •The NOx and PM were reduced respectively by using emulsion fuel.•The carbon deposit structure of E10 engine was look blacker in colour, soft and highest volatile content.•The range of 10% water and lower can be considered the best.
ISSN:0360-5442
1873-6785
DOI:10.1016/j.energy.2017.10.044