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

Lookup NU author(s): Dr Qibai Wu, Xialin Xie, Dr Yaodong WangORCiD, Professor Tony Roskilly

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).

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-biodieselfuel in the mass fractions of 30 ppm under ultrasonic mixing. The experimental tests are conductedusing a Cummins diesel engine. For comparison, three kinds of fuels including diesel-biodiesel blend (B10), B10with 4% ethanol (B10E4), and B10 with 4% ethanol and 30-ppm nanoparticles (B10E4N30) are used for the testsunder the European Stationary Cycle (ESC). The results show clearly that adding Al@C nanoparticles can reducebrake specific fuel consumption (BSFC) by 6% on average; along with a drop of 6% in NOX emission and COemission is reduced by 19%, comparing with B10. However, the presence of ethanol in fuel blend increases THCemission. 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 by11.8% for B10E4 (adding ethanol only) on the contrary, compared to B10. The studies on morphology and phasestructure of nanoparticles after combustion indicate that Al@C nanoparticles have been transformed into aluminananoparticles.

Publication metadata

Author(s): Wu Q, Xie X, Wang Y, Roskilly AP

Publication type: Article

Publication status: Published

Journal: Applied Energy

Year: 2018

Volume: 221

Pages: 597–604

Print publication date: 01/07/2018

Online publication date: 17/04/2018

Acceptance date: 30/03/2018

Date deposited: 17/04/2018

ISSN (print): 0306-2619

ISSN (electronic): 0306-2619

Publisher: Elsevier

URL: https://doi.org/10.1016/j.apenergy.2018.03.157

DOI: 10.1016/j.apenergy.2018.03.157

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