Performance and emissions of diesel engine combustion lubricated with Jatropha bio-lubricant and MWCNT additive
Abstract Vegetable oil-based lubricants, modified through transesterification and epoxidation, present a sustainable alternative to mineral lubricants for transport and industrial use. This study evaluates epoxidized jatropha oil (EJA) enhanced with multi-walled carbon nanotubes (MWCNT) as a bio-lub...
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-025-86025-8 |
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| author | Rajendra Uppar P. Dinesha Shiva Kumar |
| author_facet | Rajendra Uppar P. Dinesha Shiva Kumar |
| author_sort | Rajendra Uppar |
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| description | Abstract Vegetable oil-based lubricants, modified through transesterification and epoxidation, present a sustainable alternative to mineral lubricants for transport and industrial use. This study evaluates epoxidized jatropha oil (EJA) enhanced with multi-walled carbon nanotubes (MWCNT) as a bio-lubricant for compression ignition engines. MWCNT, dispersed in EJA using an ultrasonic probe sonicator with Triton X-100 as a surfactant, was tested at nanoparticle concentrations from 0.5 to 2 wt%. Engine performance and emission characteristics were assessed using SAE 20W40, EJA, and EJA-MWCNT in a four-stroke diesel engine. Results showed that EJA with 2 wt% MWCNT reduced friction power by 39.13% compared to SAE 20W40 and decreased brake specific energy consumption by 6.11%, while lowering emissions of hydrocarbons, carbon monoxide, and smoke. These findings highlight EJA-MWCNT as a promising lubricant for diesel engines, enhancing efficiency and reducing pollutants, making it a viable eco-friendly substitute for diminishing petroleum resources. |
| format | Article |
| id | doaj-art-d89b286f8788464b94962e8551d518a1 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
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| series | Scientific Reports |
| spelling | doaj-art-d89b286f8788464b94962e8551d518a12025-01-26T12:26:53ZengNature PortfolioScientific Reports2045-23222025-01-0115112010.1038/s41598-025-86025-8Performance and emissions of diesel engine combustion lubricated with Jatropha bio-lubricant and MWCNT additiveRajendra Uppar0P. Dinesha1Shiva Kumar2Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher EducationDepartment of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher EducationDepartment of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher EducationAbstract Vegetable oil-based lubricants, modified through transesterification and epoxidation, present a sustainable alternative to mineral lubricants for transport and industrial use. This study evaluates epoxidized jatropha oil (EJA) enhanced with multi-walled carbon nanotubes (MWCNT) as a bio-lubricant for compression ignition engines. MWCNT, dispersed in EJA using an ultrasonic probe sonicator with Triton X-100 as a surfactant, was tested at nanoparticle concentrations from 0.5 to 2 wt%. Engine performance and emission characteristics were assessed using SAE 20W40, EJA, and EJA-MWCNT in a four-stroke diesel engine. Results showed that EJA with 2 wt% MWCNT reduced friction power by 39.13% compared to SAE 20W40 and decreased brake specific energy consumption by 6.11%, while lowering emissions of hydrocarbons, carbon monoxide, and smoke. These findings highlight EJA-MWCNT as a promising lubricant for diesel engines, enhancing efficiency and reducing pollutants, making it a viable eco-friendly substitute for diminishing petroleum resources.https://doi.org/10.1038/s41598-025-86025-8BiolubricantTransesterificationEpoxidationJatrophaFriction powerEmission |
| spellingShingle | Rajendra Uppar P. Dinesha Shiva Kumar Performance and emissions of diesel engine combustion lubricated with Jatropha bio-lubricant and MWCNT additive Scientific Reports Biolubricant Transesterification Epoxidation Jatropha Friction power Emission |
| title | Performance and emissions of diesel engine combustion lubricated with Jatropha bio-lubricant and MWCNT additive |
| title_full | Performance and emissions of diesel engine combustion lubricated with Jatropha bio-lubricant and MWCNT additive |
| title_fullStr | Performance and emissions of diesel engine combustion lubricated with Jatropha bio-lubricant and MWCNT additive |
| title_full_unstemmed | Performance and emissions of diesel engine combustion lubricated with Jatropha bio-lubricant and MWCNT additive |
| title_short | Performance and emissions of diesel engine combustion lubricated with Jatropha bio-lubricant and MWCNT additive |
| title_sort | performance and emissions of diesel engine combustion lubricated with jatropha bio lubricant and mwcnt additive |
| topic | Biolubricant Transesterification Epoxidation Jatropha Friction power Emission |
| url | https://doi.org/10.1038/s41598-025-86025-8 |
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