Effect of carbon coated aluminum nanoparticles as additive to biodiesel-diesel blends on performance and emission characteristics of diesel engine

Wu, Qibai; Xie, Xialin; Wang, Yaodong; Roskilly, Tony

Abstract

This study investigates the effects of carbon coated aluminum (Al@C) nanoparticles added to diesel-biodiesel blends as additives on engine performance and emissions. The Al@C nanoparticles are added into the diesel-biodiesel fuel in the mass fractions of 30 ppm under ultrasonic mixing. The experimental tests are conducted using a Cummins diesel engine. For comparison, three kinds of fuels including diesel-biodiesel blend (B10), B10 with 4% ethanol (B10E4), and B10 with 4% ethanol and 30-ppm nanoparticles (B10E4N30) are used for the tests under the European Stationary Cycle (ESC). The results show clearly that adding Al@C nanoparticles can reduce brake specific fuel consumption (BSFC) by 6% on average; along with a drop of 6% in NOX emission and CO emission is reduced by 19%, comparing with B10. However, the presence of ethanol in fuel blend increases THC emission. Nevertheless, addition of Al@C nanoparticles reduces THC emission by 14.5% compared with B10E4. The emission of particles number (PN) is increased by 2.2 times for B10E4N30 on average but is reduced by 11.8% for B10E4 (adding ethanol only) on the contrary, compared to B10. The studies on morphology and phase structure of nanoparticles after combustion indicate that Al@C nanoparticles have been transformed into alumina nanoparticles.

Citation

Wu, Q., Xie, X., Wang, Y., & Roskilly, T. (2018). Effect of carbon coated aluminum nanoparticles as additive to biodiesel-diesel blends on performance and emission characteristics of diesel engine. Applied Energy, 221, 597-604. https://doi.org/10.1016/j.apenergy.2018.03.157

• Journal Article Type: Article
• Acceptance Date: Mar 30, 2018
• Online Publication Date: Apr 17, 2018
• Publication Date: Jul 1, 2018
• Deposit Date: Nov 4, 2019
• Publicly Available Date: Nov 4, 2019
• Journal: Applied Energy
• Print ISSN: 0306-2619
• Electronic ISSN: 1872-9118
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 221
• Pages: 597-604
• DOI: https://doi.org/10.1016/j.apenergy.2018.03.157
• Public URL: https://durham-repository.worktribe.com/output/1284729
• Related Public URLs: https://eprint.ncl.ac.uk/247460