Effects of waste chicken fat biodiesel blend on a single-cylinder diesel engine

Abstract Growing environmental concerns and the limited supply of fossil fuels necessitate the exploration of alternative sources of fuel. Currently, the Philippines primarily uses coconut for its biodiesel needs. Relying on a limited feedstock can be a problem when supply becomes unreliable. In this study, we look at the potential of waste chicken fat-derived biodiesel as an alternative. Waste chicken fat biodiesel is extracted from waste chicken fat and produced biodiesel through catalytic transesterification. The produced chicken fat biodiesel (B2WCFB3, B2WCF3, B2WCF13, B2WCF18) is blended with existing commercially available automotive diesel oil (ADO) in the market (2% CME) following the Philippine Biofuels Act of 2006 (RA 9367). These blends are tested on a single-cylinder 4-stroke diesel engine. The diesel engine is run at a constant load on full throttle. Results show that the 5% blend shows a significant loss in torque (6%) and power (5%) and is proportionate to the CO and CO 2 emissions. Still, the overall loss of power can be considered negligible. Notably, B5 and B2 blends have exhibited the lowest levels of HC emissions. On the other hand, fuel flow rate results are insignificant and BSFC is highest on the B10 blend. The study demonstrates the feasibility of waste chicken fats biodiesel as an alternative feedstock.