Optimization of Engine Parameters and Ethanol Fuel Additive of a Diesel Engine Fuelled with Waste Plastic Oil Blended Di
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ORIGINAL RESEARCH PAPER
Optimization of Engine Parameters and Ethanol Fuel Additive of a Diesel Engine Fuelled with Waste Plastic Oil Blended Diesel Amar Kumar Das 1 & Manas Ranjan Padhi 2 & Dulari Hansdah 3 & Achyut Kumar Panda 4 Received: 24 June 2020 / Revised: 1 August 2020 / Accepted: 24 August 2020 # Springer Nature Singapore Pte Ltd. 2020
Abstract This work reports the optimization of engine parameters (including compression ratio and load) and the fuel additive blend (concentration of plastic oil and ethanol) of a single cylinder 4-stroke direct injection (DI) variable compression ratio (VCR) diesel engine with an objective to identify suitable engine conditions for better thermal efficiency and exhaust emission. For this the engine performance and emission parameters are experimentally evaluated at 1500 rpm constant engine speed, varying loads and compression ratios. The break thermal efficiency and emission quality is found improved by increasing load and compression ratio and by the addition of waste plastic oil (WPO) and ethanol with diesel. The best possible engine condition of load, compression ratio and fuel blend, for better performance and lesser emission have been optimized using Taguchi technique using the S/N ratio, ANOVA, and multivariate analyses results. The study revealed that higher compression ratio (18.1) and higher load (100%) give maximum brake thermal efficiency and lesser emissions for 20%WPO and 20% ethanol blended diesel. The optimized condition obtained in this study would provide a way to use the waste plastic oil as a sustainable alternate fuel in a diesel engine. Keywords Optimization . Waste plastic oil . Ethanol . Performance . Emission . Taguchi method
Introduction The rising demand of liquid fuel, resource depletion, and high pollution load due to the combustion of conventional fossil fuels necessitates global attention towards sustainable alternate sources of energy (Ozcanli, 2015). Significant research on the renewable alternate reported different alternate liquid fuels including bio-ethanol, biodiesel, and pyrolysis bio-oil but could not replace the fossil fuel altogether. This is owing to the lack of extensive research output that could ensure an improvement in engine performance and a reduction in ex-
* Achyut Kumar Panda [email protected] 1
Department of Mechanical Engineering, Veer Surendra Sai University of Technology, Burla, Odisha 768018, India
2
Department of Mechanical Engineering, Centurion University of Technology and Management, Bhubaneswar, Odisha, India
3
Department of Mechanical Engineering, NIT Jamshedpur, Jamshedpur, India
4
Department of Chemistry, Veer Surendra Sai University of Technology, Burla, Odisha 768018, India
haust pollution. Many industries like automotives, agriculture, and power generation sectors are mostly dependent on diesel fuels for higher thermal efficiency and better fuel economy (Lynos et al., 1986). So it is always encouraging to search for an alternative source of diesel. On the other hand, mass production of plast
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