Numerical simulation of diesel engine using waste plastic oil blends
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Numerical simulation of diesel engine using waste plastic oil blends Mohanraj Chandran1 · Senthilkumar Tamilkolundu2 · Chandrasekar Murugesan2 Received: 18 March 2020 / Accepted: 24 August 2020 © Springer Nature Switzerland AG 2020
Abstract This article is focused on numerical analysis of the combustion and emission parameters on the single-cylinder directinjection (DI) engine operated in both diesel and distilled waste plastic oil blends. Analyzes of the first stage distilled waste plastic oil blends (D1WPO30) was carried out with 70:30 proportions. Simulated results are compared with experimental values in terms of cylinder pressure, heat release rate, oxides of nitrogen (NOx) and soot particles. The deviation between experimental and simulation values of cylinder pressure is found to be 1.8% with diesel whereas 6.5% with D1WPO30. The apparent heat release rate with D1WPO30 was found to be higher about 13% than diesel in simulation. The simulated NOx with D1WPO30 was found 7% higher than with diesel fuel simulation but found 16% lesser than D1WPO30 experimentation. Similarly, the soot was found higher about 16% with D1WPO30 than diesel simulation and 17% lesser than experimental values. The CFD analysis connected with experimental studies is proven that an effective approach to predict the parameters of the in-cylinder process. Keywords Distilled waste plastic oil · Diesel · DI engine · CFD
1 Introduction The rapid growth in the automotive sector leads the depletion the crude oil availability which causes frequent fuel price raises especially in India. In this concern, numerous investigations were carried out for the development of alternative fuel for both compression ignition (CI) and spark ignition (SI) engines. During the development of any alternate fuel, the emission is an important parameter which should be considered strongly because of dreads in global warming influenced cut down of greenhouse gases. In this way, the fuel was extracted using waste plastics (Polypropylene and Polyethylene) by pyrolysis process, after extraction it was distilled into two different grade fuels. The experimental analysis can be done with extracted fuel and blends on direction injection (DI) engine in-terms of performance and emission and combustion parameters. Beyond doing experimental research
using extracted fuel and its blends on direction injection engine, the application of computational fluid dynamic (CFD) simulation on alternate fuels research can predict various engine combustion and emission parameters with low cost and time. The fluid flow inside the cylinder is strongly influenced by the combustion process and emission parameters. The suitability of WPO on the diesel engine is mostly based on the physical and chemical structure of WPO oil. Except for acid and sulphur content, mostly all the properties such as density, viscosity, calorific value and cetane number are similar to diesel values. This indicates that the diesel engine can run with waste plastic oil blends without any physical modifications [1]. Th
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