Title: The effect of zinc oxide nanoparticles and aluminium oxide nanoparticles in the performance and emissions of canola biodiesel in diesel engines

Authors: A. Anbarasu

Addresses: Department of Mechanical Engineering, Panimalar Engineering College, Chennai – 600123, India

Abstract: The present experimental work analyses the effect of zinc oxide and aluminium oxide nanoparticles addition in canola biodiesel in single-cylinder water cooled direct injection four stroke compression ignition engines. The nano fluids are prepared from 50 ppm of zinc oxide and aluminium oxide nanoparticles with distilled water through ultrasonication process. Various engine loads of 0, 7, 14, 21 and 28 Nm at a constant engine speed of 1,500 rpm were applied during engine testing. The fuel outcomes were obtained by calculating the average three times repetition of engine testing. Findings reveal that the highest maximum pressure of zinc oxide and aluminium oxide nanoparticles fuel increased by 12.3% compared to canola test fuel. Other than that, the engine brake thermal efficiency and specific fuel consumption show a significant increase by 23% and 9.3%, respectively. Meanwhile, the emissions of zinc oxide and aluminium oxide nanoparticles fuel show a large NOx decrease of 41.6%, 28.5% HC and 40% CO. Addition of zinc oxide and aluminium oxide nanoparticles in biodiesel show positive improvements when used in compression ignition engines.

Keywords: Al₂O₃ nanoparticle; zinc oxide nanoparticle; canola biodiesel; transesterification; emissions.

DOI: 10.1504/IJETP.2026.153614

International Journal of Energy Technology and Policy, 2026 Vol.21 No.2, pp.173 - 187

Received: 30 May 2025
Accepted: 03 Mar 2026
Published online: 18 May 2026 *

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