Title: Experimental study on the feasibility of using water emulsified diesel as CI engine fuel

Authors: Pijush Kanti Mondal; Bijan Kumar Mandal

Addresses: Department of Mechanical Engineering, Nazrul Centenary Polytechnic, Rupnarayanpur, Paschim Bardhaman-713335, West Bengal, India ' Department of Mechanical Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah-711103, West Bengal, India

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 NO_x 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]

Keywords: water emulsified diesel; WED; ultrasonicator; combustion; brake thermal efficiency; emission.

DOI: 10.1504/IJOGCT.2021.111872

International Journal of Oil, Gas and Coal Technology, 2021 Vol.26 No.1, pp.60 - 83

Received: 21 Sep 2018
Accepted: 05 Jul 2019
Published online: 18 Dec 2020 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article