Study on using graphene and graphite nanoparticles as fuel additives in waste cooking oil biodiesel

Abstract

Utilising waste cooking oil biodiesel in internal combustion engines for power generation and transport is of increasing importance, as it is the least pollutant disposal method for waste cooking oil. Besides, researchers have recently shown an increasing interest in utilising graphene and its derivatives in different applications due to its unique thermal and physical characteristics, including enhancing the combustion characteristics of biofuels. Therefore, this article studies the characteristics of waste cooking oil biodiesel blended with few-layered graphene and graphite nanoparticles additives and their influence on combustion and engine emissions and benchmark them against neat biodiesel and diesel fuels. The biodiesel was synthesised through a transesterification method from waste cooking oil and blended with diesel or butanol after adding few-layered graphene and graphite nanoparticles. Few-layered graphene and graphite nanoparticle additives led to greater peak in-cylinder pressure by 0.5-2.5% increment and 1-4% lower heat released rate at full load. As such, employing few-layered graphene and graphite in a fuel mix reduced NOx emission by 0.7-5 % compared to 100% diesel counterpart. Besides, at full engine load, waste cooking biodiesel blended with 100 ppm few-layered graphene and graphite nanoparticles showed an increment in brake thermal efficiency by 8-10% compared to pure fossil diesel and waste cooking biodiesel. The results show the feasibility of using graphene-based nanoparticle additives in biodiesel to enhance biodiesel fuel combustion characteristics, hence lowering NOx emissions.

Publication DOI: https://doi.org/10.1016/j.fuel.2022.125270
Divisions: College of Engineering & Physical Sciences > School of Engineering and Technology > Mechanical, Biomedical & Design
College of Engineering & Physical Sciences > Aston Institute of Materials Research (AIMR)
College of Engineering & Physical Sciences > Sustainable environment research group
College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Aston Institute of Urban Technology and the Environment (ASTUTE)
Additional Information: Funding: British Council DST-UKIERI 18-19-04 © 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC license
Uncontrolled Keywords: biodiesel,combustion,emissions,graphene,graphite,nanoparticle,Engineering(all),Energy(all),SDG 7 - Affordable and Clean Energy
Publication ISSN: 1873-7153
Last Modified: 29 May 2024 16:02
Date Deposited: 13 Jul 2022 13:10
Full Text Link:
Related URLs: https://www.sci ... 107X?via%3Dihub (Publisher URL)
PURE Output Type: Article
Published Date: 2022-11-15
Published Online Date: 2022-07-14
Accepted Date: 2022-07-08
Authors: Sharma, Vikas (ORCID Profile 0000-0002-0603-8208)
Hossain, A K (ORCID Profile 0000-0002-8713-8058)
Ahmed, Alamgir
Rezk, Ahmed (ORCID Profile 0000-0002-1329-4146)

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