Experimental study on the feasibility of using water emulsified diesel as CI engine fuel Online publication date: Fri, 18-Dec-2020
by Pijush Kanti Mondal; Bijan Kumar Mandal
International Journal of Oil, Gas and Coal Technology (IJOGCT), Vol. 26, No. 1, 2021
Abstract: In this article, authors have investigated the combustion, performance and emission characteristics of a four-stroke water cooled CI engine using water emulsified diesel (WED) as fuel containing 5% to 20% water by volume. The emulsions have been prepared using ultrasonicator. The stability behaviours of these prepared WEDs are analysed based on the measured values of polydispersity index (PDI) and water particle size in the emulsion. Improved combustion characteristics are found for WEDs than those with pure diesel. Higher brake thermal efficiency and mechanical efficiency are found for emulsified diesel compared to pure diesel. The neat SFC is found to be lower than that with pure diesel. Significant reductions in emissions of pollutants like NOx and smoke are observed. At full load, no significant difference is observed in CO emission. The emissions of CO2 and O2 have also been measured and analysed. [Received: March 25, 2019; Accepted: July 5, 2019]
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