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This experimental study investigates the impact of biodiesel derived from Jatropha oil and multiwalled carbon nanotubes (CNTs) on the performance and emissions of a diesel engine. The analysis involved five fuel conditions: pure diesel (D), diesel blended with 50% biodiesel (DB50), diesel blended with 80% biodiesel (DB80), diesel blended with 50% biodiesel and CNTs (DB50C), and diesel blended with 80% biodiesel and CNTs (DB80C). The results indicate that biodiesel blends, particularly those enhanced with CNTs, significantly improve fuel efficiency and engine performance. Blends with additives (DB50C and DB80C) exhibited higher brake power (BP) and lower brake‐specific fuel consumption (BSFC) across various engine speeds, indicating more effective energy conversion and better fuel economy. Moreover, emissions analysis revealed that biodiesel blends with CNTs significantly reduce harmful emissions. Emissions of carbon monoxide (CO), unburned hydrocarbons (UHCs), and nitrogen oxide (NOx) were consistently lower for DB50C and DB80C compared to D. The most notable reduction of 23.9% in NOx emissions occurred at an engine speed of 2200, while CO and UHC emissions were reduced by 17.8% and 15.4%, respectively, at engine speeds of 1600 rpm. These findings suggest that the use of biodiesel with CNT additives not only increases combustion efficiency but also contributes to cleaner engine operation. This study emphasizes the potential of biodiesel, especially when combined with advanced nanoparticles, as a practical and environmentally friendly alternative to conventional diesel fuel.
Details
Biodiesel fuels;
Diesel fuels;
Diesel engines;
Emissions control;
Nanoparticles;
Methane;
Hydrogen;
Additives;
Metal oxides;
Engines;
Nitrogen oxides;
Fuel economy;
Fuel consumption;
Oils & fats;
Efficiency;
Nanotubes;
Multi wall carbon nanotubes;
Raw materials;
Viscosity;
Fossil fuels;
Carbon;
Temperature;
Seeds;
Synergistic effect;
Emissions;
Vegetable oils;
Ammonia;
Carbon monoxide;
Combustion efficiency
; Noor, Shazia 2
; Shah, Asad Naeem 3 ; Saleem, Sadia 4
; Rafique, Nasir 3
; Yasin, Muhammad Muzzammil 5
; Nazar, Muhammad Faheem 3 ; Hakizimana, Eustache 6
1 Department of Transport Engineering, , Faculty of Mechanical Engineering and Design, , Kaunas University of Technology, , Kaunas, , Lithuania,
2 Department of Mechanical Engineering, , Bahauddin Zakariya University, , Multan, , Pakistan,
3 Department of Mechanical Engineering, , University of Engineering and Technology, , Lahore, , Pakistan,
4 Institute of CS and IT, , The Women University, , Multan, , Pakistan,
5 Department of Mechanical Engineering, , University of Management and Technology, , Lahore, , Pakistan,
6 Department of Mechanical and Energy Engineering, , University of Rwanda, , Kigali, , Rwanda,