Nowadays, a large portion of energy is produced using diesel engines. Although they have many benefits, like long lifespans, great efficiency, and dependability, they also have serious drawbacks, including the depletion of fossil fuel supplies and the release of pollutants that are bad for the environment and human health. The purpose of this study was to reduce these drawbacks and assess the viability of an environmentally acceptable, sustainable alternative fuel. Biodiesel fuels were used in this case because they may be utilized in current diesel engines with little to no modification. Cottonseed biodiesel was chosen among the various forms of biodiesel because of its high production potential and the fact that it is not intended for direct human use. In a single-cylinder, four-stroke diesel engine, fuel mixtures made by mixing cottonseed biodiesel with diesel fuel at volumetric percentages of 10%, 20%, 30%, and 40% were tested under six distinct engine loads and at a constant speed of 3000 rpm. According to the experimental results, CO and HC emissions significantly decreased as the biodiesel ratio rose, but CO2 and NOx emissions increased. Additionally, because biodiesel has a reduced calorific value, BSFC increased but BTE decreased. Optimization studies were conducted using three different scenarios with RSM and experimental data. In the scenario where all output parameters were assumed to be equally important, the ideal biodiesel ratio was found to be 9.22% and the engine load to be 1451.71 W. Under these ideal conditions, NOx was 633.69 ppm, HC was 20.84 ppm, CO2 was 5.27%, CO was 0.028%, BTE was 19.87%, and BSFC was 411.41 g/kWh. The outcomes show that cottonseed biodiesel is a sustainable and eco-friendly substitute fuel that, when used properly, can lower emissions in diesel engines.
Savaş et al. (Thu,) studied this question.
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