2023 Cilt 28 Sayı 3

Permanent URI for this collectionhttps://hdl.handle.net/11452/41019

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    The exploitation of titanium dioxide nanoparticles for improving the performance and emissions of biofuel-diesel blend-fuelled stationary diesel engine
    (Bursa Uludağ Üniversitesi, 2023-09-23) Çakmak, Abdülvahap
    In this research, the potential effects of titanium dioxide (TiO₂) nanoparticles on improving astationary diesel engine characteristic fuelled with a biofuel mixture-diesel blend (B25: 25% vol. biofuelmixture containing biodiesel, waste cooking oil and ethanol + 75% vol. diesel) are experimentallyinvestigated. TiO₂ nanoparticles are dispersed in B25 fuel at 50, 100, and 150 ppm concentrations.Subsequently, they are tested in a stationary research diesel engine at a rotational speed of 1500 rpm andspecific loads. Nanoparticles enhance combustion, offering increased cylinder gas pressure, net heatrelease rate, and reduced ignition delay period and combustion duration. The engine performance is enhanced more with increasing nanoparticle concentration. TiO₂ nanoparticles with a 150 ppm ratereduce brake-specific fuel consumption by 3.21% and increase the brake effective efficiency by 3.67%,on average, compared to B25 fuel without nanoparticles. CO emission and smoke opacity are reduced byup to 31.89% and 24.56% with TiO₂ nanoparticles. However, under the same operating conditions, NO emission increases to 30.58% compared to sole B25. Nevertheless, the NO emission of nanofuels is stillless than that of diesel fuel. This study's results indicate that using TiO₂ nanoparticles as a nano fueladditive can enhance the stationary engine's operation fueled with the biofuel mixture-diesel blend.