Akroot, AbdulrazzakHasan, Hasan A.Bdaiwi, Mothana2024-09-292024-09-2920240392-8764https://doi.org/10.18280/ijht.420305https://hdl.handle.net/20.500.14619/6928This study delves into the potential of eucalyptus biodiesel as a future fuel alternative, focusing on its impact on key engine performance metrics: brake thermal efficiency (BTE) and brake-specific fuel consumption (BSFC). Eucalyptus biodiesel was produced through a controlled transesterification process, further incorporating oxide particles and nanoaluminum to investigate potential quality enhancements. Blends of varying biodiesel proportions (D95 -B5, D90 -B10, D85 -B15) were systematically evaluated in a watercooled, four-stroke, four-cylinder diesel engine across diverse operating conditions (1200, 1400, and 1600 rpm at 25%, 50%, and 75% load). Findings revealed a gradual decline in BTE and an increase in BSFC with increasing eucalyptus biodiesel content, indicating a decrease in overall fuel efficiency. To address this challenge, a further experiment explored the addition of nanoparticles (50 ppm, 75 ppm, and 100 ppm) to the D85 -B15 blend. This strategic modification yielded a promising result: a significant improvement in both BTE and BSFC, highlighting the potential of nanoparticle additives to mitigate the efficiency drawbacks of eucalyptus biodiesel. Notably, this positive trend strengthened with increasing nanoparticle concentration and operating parameters.eninfo:eu-repo/semantics/closedAccessnanoparticleseucalyptusbiodieseloxide particlesnano aluminumdiesel engine performanceArticle10.18280/ijht.4203052-s2.0-851974377887643Q375542WOS:001260815200005N/A