Environmental impact of waste plastic pyrolysis oil on insulated piston diesel engine with methoxyethyl acetate additive

The energy recovery from waste plastics as a prospective fuel source helps to overcome the issues of waste plastic management and the growing fuel shortage. In this article, High-Density Polyethylene (HDPE) plastics are used to convert into waste plastic pyrolysis oil (WPPO) through the pyrolysis process. An experimental investigation is carried out to evaluate the effectiveness of WPPO in a Thermal Barrier Coated piston engine (TBC) with an oxygenated additive of Methoxyethyl acetate (MEA). The incremental ratio of WPPO to pure diesel with the addition MEA and its performance, combustion, and emission characteristics are studied in a direct injection single-cylinder low heat rejection diesel engine. MEA and the coated piston resulted in improved performance of WPPO. Brake-specific fuel consumption is reduced by up to 9% under various load situations. D70W20MEA10 shows carbon monoxide elimination of up to 15% under various load conditions and a hydrocarbon reduction of up to 16%. At half load, D70W20MEA10 produces about 3% less HSU of smoke.