Abstract
With incessant increases in fuel prices worldwide and concerns for environmental pollution, the need for alternative sources of energy is becoming urgent. In this study, the potential of grape seed oil for biodiesel as an alternative fuel was evaluated. Refined grape seed oil was bought in liquid form and then subjected to an alkali-catalyzed transesterification process for biodiesel production. The physicochemical properties of the resulting biodiesel—namely, viscosity, cetane number, and heating value—were investigated. The biodiesel was blended with a conventional diesel in various proportions and combusted in a four-cylinder, four-stroke compression ignition (diesel) engine under two loading conditions. Experimental results revealed that the blend ratio of B70 (70% GS biodiesel and 30% conventional diesel) gave the best overall engine performance in terms of maximum power, minimum emissions, and fuel consumption. Furthermore, a novel neural network technique called extreme learning machine was adopted to investigate the optimal blend ratio using the dataset obtained from the experimental results. The results also indicate that the best choice of biodiesel blend ratio is approximately B73.67 (73.67% GS biodiesel and 26.33% conventional diesel). The study shows that grape seed oil could serve as a reliable source of production of quality biodiesel fuels, which could be used as an alternative to conventional diesel fuels.
Highlights
In the past century, the rapid development of industry, population growth, and the simultaneous improvement in people’s living standards were significantly aided by the use of fossil fuels
For optimal emission and power performance under specific load conditions, it is recommended to blend the biodiesel in appropriate proportions with conventional diesel for use in compression ignition (CI)-engine-powered vehicles
Owing to the performance of biodiesel produced from grape seed oil when tested using a four-cylinder, four-stroke compression ignition-engine-powered vehicle, grape seed oil has been demonstrated to be a good potential biodiesel
Summary
The rapid development of industry, population growth, and the simultaneous improvement in people’s living standards were significantly aided by the use of fossil fuels. Burning fossil fuels produces large amounts of carbon dioxide, which aggravates global warming [1]. As fossil fuels are limited resources, reducing fuel consumption and the development of green energy sources are important millennium development goals for sustainability [2]. From an Energy Information Administration (EIA) report on short-term energy outlook, it is projected that total world oil production in 2022 will be 101.81 million barrels per day [3]. As the global population remains on an upward trajectory, global consumption is unlikely to slow down in the immediate future. There are great incentives for exploring alternative energy sources
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