Analysis of the pooled effect of compression ratio and injection timing variation on conventional diesel engine powered with nano doped biodiesel blend
Emission; Mahua biodiesel; Nanoparticles enriched biodiesel diesel blend; Performance; Titanium oxide nanoparticles
This research aims to explore how incorporating nanoparticles into a biodiesel-diesel blend influences the performance, combustion, and emission characteristics of a diesel engine under varying conditions, including compression ratios, engine loads, and injection timings. The biodiesel and nanoparticles considered for this investigation are mahua biodiesel and Titanium oxide nanoparticles (TiO2), respectively. The experimental fuel is formulated by blending diesel and mahua biodiesel with the addition of titanium oxide nanoparticles. In this study, compression ratio is varied from 17.5 to 18, whereas fuel injection timing of 20, 23, and 25 BTDCs along with engine load variation of 20%, 40%, 60%, 80%, and 100% are considered. The experimentation utilized a single-cylinder diesel engine equipped with a variable compression ratio (VCR) feature and a power output of 3.5kW. The results indicate that the maximum brake thermal efficiency was achieved at a compression ratio of 18 and a fuel injection timing of 20 before Top Dead Center. For the same setting, the nanoparticle-enriched biodiesel-diesel blend exhibited the lowest levels of CO and HC emissions among all test runs, with reductions of 45.34% and 40%, respectively, compared to standard diesel operation. The Author(s) 2025.
Sarma, Chinmoy Jit; Medhi, Bhaskar Jyoti; Bora, Bhaskor Jyoti; Bora, Dilip K.; Elumalai, P.V.; Lawrence, Krupakaran Radhakrishnan; Barik, Debabrata; Ramegowda, Ravikumar; Kavalli, Kiran; Soudagar, Manzoore Elahi M.; Altaye, Mesay Dejene
Scientific Reports;Volume;15;Issue;1;Article No.;21209;
All Open Access; Gold Open Access; Green Open Access
https://doi.org/10.1038/s41598-025-98510-1 https://www.scopus.com/pages/publications/105009742107?origin=resultslist
Sarma C.J., Assam Energy Institute Sivasagar, A Centre of Rajiv Gandhi Institute of Petroleum Technology, Assam, Sivasagar, 785697, India; Medhi B.J., Assam Energy Institute Sivasagar, A Centre of Rajiv Gandhi Institute of Petroleum Technology, Assam, Sivasagar, 785697, India; Bora B.J., Assam Energy Institute Sivasagar, A Centre of Rajiv Gandhi Institute of Petroleum Technology, Assam, Sivasagar, 785697, India; Bora D.K., Dhemaji Engineering College, Assam, Dhemaji, 787057, India; Elumalai P.V., Department of Mechanical Engineering, Aditya University, Surampalem, India; Lawrence K.R., Department of Mechanical Engineering, Mohan Babu University, Andhra Pradesh, Tirupati, India; Barik D., Department of Mechanical Engineering, Karpagam Academy of Higher Education, Coimbatore, 641021, India; Ramegowda R., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, India; Kavalli K., Department of Mechanical and Automobile Engineering, CHRIST University, Bangalore, India; Soudagar M.E.M., College of Engineering, Lishui University, Zhejiang, Lishui, 323000, China, Centre for Research Impact and Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, Punjab, Rajpura, 140401, India, Division of Research & Innovation, Uttaranchal University, Dehradun, 248007, India; Altaye M.D., Department of Mechanical Engineering, Wolaita Sodo University, Soddo, Ethiopia