Investigation the effect of adding graphene oxide into diesel/higher alcohols blends on a diesel engine performance |
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| Authors: | Ahmed I. El-Seesy Mohamed Nour Ali M. A. Attia Hamdy Hassan |
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| Affiliation: | 1. Institute for Energy Research, Jiangsu University, Zhenjiang, China;2. Department of Mechanical Engineering, Benha Faculty of Engineering, Benha University, Benha, Egyptzxhe@ujs.edu.cn ahmed.elsysy@bhit.bu.edu.eg;4. Department of Mechanical Engineering, Benha Faculty of Engineering, Benha University, Benha, Egypt;5. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, China;6. Mechanical Engineering Department, College of Engineering, University of Bisha, Bisha, Saudi Arabia;7. Mechanical Engineering Department, College of Engineering, University of Bisha, Bisha, Saudi Arabia;8. Energy Resources Engineering Department, Egypt- Japan University of Science and Technology (E-JUST), Alexandria, Egypt |
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| Abstract: | ABSTRACTThis article aims to study the influence of the addition of graphene oxide nanoparticles (GO) to diesel/higher alcohols blends on the combustion, emission, and exergy parameters of a CI engine under various engine loads. The higher alcohols mainly n-butanol, n-heptanol, and n-octanol are blended with diesel at a volume fraction of 50%. Then, the 25 and 50 mg/L concentrations of GO are dispersed into diesel/higher alcohols blends using an ultrasonicator. The GO structures are examined using TEM, TGA, XRD and FTIR. The findings show that there is a reduction in pmax. and HRR when adding higher alcohols with diesel fuel. Regarding engine emission, there is a significant improvement in emissions formation with adding higher alcohols. The addition of GO into diesel/higher alcohols blends improves the brake thermal efficiency by 15%. Moreover, the pmax. and HRR are both enhanced by 4%. The CO, UHC and smoke formation are reduced considerably by 40%, 50 and 20%, respectively, while NOx level is increased by 30% with adding GO. Finally, adding high percentages of n-butanol, n-heptanol, and n-octanol with diesel fuel with the presence of GO has the potential to achieve ultra-low CO, UHC, and smoke formation meanwhile keeping high thermal efficiency level. |
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| Keywords: | Higher alcohols graphene oxide heat release rate engine performance exergy Parameters emission characteristics |
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