Sustainability improvement by utilizing polymer waste as an energy source for a diesel engine with alcohol additives

Energy and fossil fuel supplies have been threatened by the depletion of fossil fuels on a global scale, as well as by the constant rise in oil prices and the continual increase in environmental degradation. On the other hand, polymer waste has increased due to its usage in a daily lifestyle
because of its cheap cost, ease of production, and adaptability. Indirectly, these polymer wastes are causing some major problems for the ecosystem and other living things. By transforming waste polymers into usable energy, can address for both the non-biodegradability of polymers
and the need for an alternative fuel. This research paper aims to evaluate the performance of
fuel produced by the pyrolysis of polyethylene polymer. Three distinct alcohol additive blends
with polymer fuel were investigated in a single-cylinder direct injection diesel engine for their
performance and emission characteristics. The engine efficiency of pentanol was found to be
about 3.4% higher than that of base diesel, and with 7% better fuel consumption. Additionally,
alcohol additives reduced CO emissions by 3.6%–3.8% and HC emissions by 3.5%–3.8%. The
results were further analysed using the design of experiment tool, "Full Factorial Design" to
determine the most optimal running condition with fuel consumption of 0.4508 kg/kWh, hydrocarbon of 49 ppm and carbon monoxide 0.265% at half load conditions.