Effect of nanocomposite SCP1 additive to waste cooking oil biodiesel as fuel enhancer on diesel engine performance and emission characteristics

In this study, biodiesel produced from waste cooking oil (WCO) was mixed with the commercial diesel#1 at a ratio of 50:50 % (B50) each by volume basis. Effect of adding different concentrations of the nanocomposite {[Cu-I(CN)(2)(phen)_Cu-II(CN)(2)(phen)]_5H(2)O}/Ag}; SCP1 to B50 is also studied at different engine loads and fixed engine speed of 1400 RPM. The tested blend fuels were pure diesel, B50, B50 + 50 ppm SCP1, B50 + 100 ppm SCP1, and B50 + 150 ppm SCP1. Parameters of engine performance such as brake thermal efficiency (BTE), brake specific fuel consumption (BSFC), and exhaust gas temperature (EGT) were also investigated. Moreover, the impacts of adding SCP1 on the emission characteristics of UHC, CO, CO2, and NOx were also investigated. Different engine performance and emissions results were examined at a constant rotational engine speed of 1400 rpm with different engine loads. Results from the experiments showed that the SCP1 addition led to a substantial enhancement in engine performance and emissions. The obtained results elucidated that when using 150 ppm of SCP1, BSFC decreased by 13.1% in contrast with the B50, accompanied by an increase in BTE by 12.5%. There has also been a rise in exhaust gas temperatures as a sign of improved combustion behaviors inside the engine cylinder. The results revealed that the UHC emissions also reduced by 17.8% in contrast with the B50, owing to improved combustion process. There has been an increase in carbon dioxide by 19.65% and nitrogen oxides emissions by 23.3% respectively in contrast with the B50 because of oxygen content in biodiesel, while there was no improvement in CO emissions.

Automated summary

This study investigates the effect of adding the nanocomposite SCP1 to a blend of biodiesel and commercial diesel fuel. The results show that the addition of SCP1 leads to improved engine performance and reduced emissions.