What is it about?
Increasing environmental concern, depleting oil and natural resources are the driving forces in promoting biodiesel as an alternate fuel. Vegetable oils are considered as good alternatives to diesel as their properties are comparable to diesel. At present biodiesel is commercially produced from vegetable oils by esterification processes. Since most of these oils are edible, its cost restricts the usage. The De-oiled cakes after crushing the seeds contains around 2% of oil with less fatty materials has been considered in this study, by complementing with diesel fuel
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Why is it important?
The fuel is prepared by adding dry Neem De-oiled cake (NEEM) powder at 15 percent by weight with diesel, and Jatropha methyl ester (JOME), while Jatropha seeds which is trans-esterified and blended with diesel in the percentage of 15%. Experimental results reveal that, the fuel has the potential in reducing the smoke levels, carbon monoxide, unburnt hydrocarbon emissions simultaneously along with marginal increase in brake thermal efficiency and oxides of nitrogen.
Perspectives
The JOME blends show better performance and emission reduction than NEEM and Diesel. The JOME and NEEM oils have higher viscosity compared to diesel. Hence, better lubricity than diesel fuel which will reduce the need for lubricity additives being added to diesel fuel. On the whole it is concluded that de oiled cake powders may be used as an oxygenated additive with diesel to improve the performance and emissions of a diesel engine.
Dr. Sendilvelan Subramanian
Dr.M.G.R. Educational and Research Institute, University
Read the Original
This page is a summary of: Comparative performance studies on DI diesel engine with neem de-oiled cake and Jatropha methyl ester diesel blends, World Journal of Engineering, August 2017, Emerald,
DOI: 10.1108/wje-09-2016-0072.
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