Gurusamy, ManikandarajaVijayaragavan, MathanrajVaruvel, Edwin Geo2024-05-192024-05-1920241556-70361556-7230https://doi.org10.1080/15567036.2024.2322029https://hdl.handle.net/20.500.12713/5568This research article examines engine performance characteristics using three different volumetric blending ratios of high-viscosity Simarouba glauca seed oil and low-viscosity camphor oil: 30% Simarouba glauca oil with 70% camphor oil (S30C70), 50% Simarouba glauca oil with 50% camphor oil (S50C50), and 70% Simarouba glauca oil with 30% camphor oil (S70C30). At full load, the thermal efficiency of S30C70 was found to be 8.18, 5.64, and 4.09% higher than that of S70C30, S50C50, and diesel fuel. In comparison to S70C30, S50C50, and diesel, the energy usage for brakes was determined to be 7.54, 5.34, and 3.64% lower. At high loading circumstances, S30C70 emits 57% less CO than the basic fuel value. Similar to the basic fuel, smoke and hydrocarbon emissions are trending downward. In comparison to base diesel, NO emission for the S30C70 fuel mix was about 20.33% higher under heavier loading situations. The maximum in-cylinder peak pressure and rate of pressure increase are exhibited in S30C70, which has a lower cetane number. The S30C70 fuel blend offers higher fuel exergy, relative efficiency, sustainability index, and exergy efficiency due to its low viscosity. The S30C70 fuel blend was found to have lower entropy than all other combinations tested. When a higher volume of camphor oil is added to the blended fuel, the performance characteristics of the diesel engine increase significantly.eninfo:eu-repo/semantics/closedAccessSimarouba Glauca Seed OilCamphor OilCi EngineEngine CharacteristicsBiomass WasteArticle46138843901WOS:0011846337000012-s2.0-85187867872N/A10.1080/15567036.2024.2322029Q2