Abstract
The substitution of petroleum-based synthetic lubricant with the vegetable oil-based bio-lubricant for an engine fueled with biodiesel is explored in this study. Rapeseed oil was selected as a base oil candidate for the formulation of bio-lubricant as well as biofuel. Further, this study investigated the multi-response optimization of diesel engine for an optimal parametric combination to yield better engine performance such as brake power, brake thermal, and mechanical efficiency with minimum exhaust emissions like carbon monoxide (CO), hydrocarbon (HC), and smoke and oxides of nitrogen (NOx) when the engine is fueled with rapeseed oil biodiesel and lubricated with rapeseed oil-based bio-lubricant using Taguchi-grey relational analysis. Three factors namely, lubricant, compression ratio, and engine load were optimized using L18 orthogonal array. The response table, response graph, and analysis of variance (ANOVA) are used to find the optimal setting and the influence of engine parameters on the multiple performance characteristics. The optimization results have shown that an increase in value of the grey relational grade from 0.6105 to 0.85 confirms the improvement in engine characteristics when using rapeseed oil-based bio-lubricant/biodiesel combination.
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Arumugam, S., Sriram, G., Rajmohan, T., Paulo Davim, J. (2016). Multi-objective Optimization of Engine Parameters While Bio-lubricant–Biofuel Combination of VCR Engine Using Taguchi-Grey Approach. In: Davim, J. (eds) Ecotribology. Materials Forming, Machining and Tribology. Springer, Cham. https://doi.org/10.1007/978-3-319-24007-7_4
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DOI: https://doi.org/10.1007/978-3-319-24007-7_4
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