Experimental Evaluation of Diesel Engine Performance, Combustion and Emissions Operated on ABD blended with Al2O3

Jayaprakash Parala; D Anjan Kumar Reddy; Mangalapally Srikanth; G Harinath Gowd; U Sreekanth; Harinadh Vemanaboina

doi:10.5935/jetia.v12i59.2675

Autores

Jayaprakash Parala Sree Venkateswara College Of Engineering, Nellore, India. https://orcid.org/0000-0003-2996-4228 (não autenticado)
D Anjan Kumar Reddy Sri Venkateswara College of Engineering, Tirupathi, India. https://orcid.org/0000-0002-1226-4674 (não autenticado)
Mangalapally Srikanth Sreyas Institute of Engineering and Technology, Hyderabad, India. https://orcid.org/0009-0002-5916-8302 (não autenticado)
G Harinath Gowd VEMU Institute of Technology, Chittoor, India. https://orcid.org/0000-0002-7531-8625 (não autenticado)
U Sreekanth VEMU Institute of Technology, Chittoor, India. https://orcid.org/0009-0004-5941-9575 (não autenticado)
Harinadh Vemanaboina VEMU Institute of Technology, Chittoor, India. https://orcid.org/0000-0001-9745-5463 (não autenticado)

DOI:

https://doi.org/10.5935/jetia.v12i59.2675

Resumo

This study evaluates a single-cylinder CI engine fuelled with Acacia biodiesel (ABD) and ABD doped with Al₂O₃ nanoparticles (100 and 200 ppm), benchmarked against petro-diesel. ABD satisfied ASTM D6751 with viscosity 4.14 cSt, density 0.88 g/mL, flash point 80 °C, gross calorific value 35,707 kcal/kg, and cetane index 44.59 (diesel 48.48). Tests used a TV1 four-stroke engine (bore 87 mm, stroke 110 mm, compression ratio 17.5:1) at 1500 rpm. Relative to neat ABD, nano-additivities significantly improved combustion stability and decreased CO, HC and smoke at all loads; notably, NOx also declined with optimized injection timing. The 200-ppm dose delivered consistent gains. Overall, low-ppm Al₂O₃ leveraged ABD’s higher flash point and density to promote faster oxidation, lower tailpipe emissions, and diesel-comparable ignition quality, indicating ABD+Al₂O₃ as a practical drop-in for cleaner CI operation.