Numerical simulation of a diesel engine performance powered by soybean biodiesel and diesel fuels
Abstract Background The present study presents a 3-D numerical simulation of a direct injection diesel engine powered by base diesel oil and soybean biodiesel fuel at different load conditions. The modeling was performed using commercial computational fluid dynamics (CFD) software linked to a chemic...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2023-01-01
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| Series: | Beni-Suef University Journal of Basic and Applied Sciences |
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| Online Access: | https://doi.org/10.1186/s43088-023-00349-w |
| _version_ | 1797945753566445568 |
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| author | Mohamed Khaled Abdelrazek Mohsen Mohamed Abdelaal Ahmed Mustafa El-Nahas |
| author_facet | Mohamed Khaled Abdelrazek Mohsen Mohamed Abdelaal Ahmed Mustafa El-Nahas |
| author_sort | Mohamed Khaled Abdelrazek |
| collection | DOAJ |
| description | Abstract Background The present study presents a 3-D numerical simulation of a direct injection diesel engine powered by base diesel oil and soybean biodiesel fuel at different load conditions. The modeling was performed using commercial computational fluid dynamics (CFD) software linked to a chemical solver. A chemical kinetic reaction mechanism was developed to simulate the combustion and fuel spray processes. Base diesel oil results were verified using a single-cylinder, 4-stroke diesel engine. Results The study showed that the usage of the soybean biodiesel fuel caused a reduction in carbon monoxide (CO) and hydrocarbon (HC) emissions by about 42.38% and 41.35%, compared with base diesel and an increase in nitrogen oxides (NOx) and carbon dioxide (CO2) emissions of about 21.8% and 11.2%, respectively. Exhaust gas temperature (EGT) is reduced by an average value of 9.4%, the brake-specific fuel consumption (BSFC) is increased by an average value of 11.8% and the brake thermal efficiency (BTE) is dropped by an average value of 11.3% for soybean biodiesel fuel. Conclusions The CFD model showed the effect of the unsaturated fatty acid methyl esters present in soybean biodiesel on the spatial distributed values of NOx, oxygen and temperature during the combustion in engine cylinder. It was observed that the combustion of soybean biodiesel began about 3.89 CAD earlier than base diesel, and the in-cylinder peak pressure was dropped by 8.25%. Soybean biodiesel fuel was optimized by performing four starts of injection (SOI) at timings of − 18, − 16, − 15 and − 13,5 bTDC, and it was found that the combustion characteristics of soybean biodiesel are optimum at SOI = − 15 bTDC. These results indicate that the biodiesel fuel can be used as an alternative and environmentally friendly fuel in the engine without any modifications. |
| first_indexed | 2024-04-10T21:01:09Z |
| format | Article |
| id | doaj.art-96c2a93024f249e9a95c63af5601fd8d |
| institution | Directory Open Access Journal |
| issn | 2314-8543 |
| language | English |
| last_indexed | 2024-04-10T21:01:09Z |
| publishDate | 2023-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Beni-Suef University Journal of Basic and Applied Sciences |
| spelling | doaj.art-96c2a93024f249e9a95c63af5601fd8d2023-01-22T12:21:44ZengSpringerOpenBeni-Suef University Journal of Basic and Applied Sciences2314-85432023-01-0112111910.1186/s43088-023-00349-wNumerical simulation of a diesel engine performance powered by soybean biodiesel and diesel fuelsMohamed Khaled Abdelrazek0Mohsen Mohamed Abdelaal1Ahmed Mustafa El-Nahas2Department of Mechanical Engineering, Faculty of Engineering, Al–Azhar UniversityDepartment of Mechanical Engineering, Faculty of Engineering, Al–Azhar UniversityDepartment of Mechanical Engineering, Faculty of Engineering, Al–Azhar UniversityAbstract Background The present study presents a 3-D numerical simulation of a direct injection diesel engine powered by base diesel oil and soybean biodiesel fuel at different load conditions. The modeling was performed using commercial computational fluid dynamics (CFD) software linked to a chemical solver. A chemical kinetic reaction mechanism was developed to simulate the combustion and fuel spray processes. Base diesel oil results were verified using a single-cylinder, 4-stroke diesel engine. Results The study showed that the usage of the soybean biodiesel fuel caused a reduction in carbon monoxide (CO) and hydrocarbon (HC) emissions by about 42.38% and 41.35%, compared with base diesel and an increase in nitrogen oxides (NOx) and carbon dioxide (CO2) emissions of about 21.8% and 11.2%, respectively. Exhaust gas temperature (EGT) is reduced by an average value of 9.4%, the brake-specific fuel consumption (BSFC) is increased by an average value of 11.8% and the brake thermal efficiency (BTE) is dropped by an average value of 11.3% for soybean biodiesel fuel. Conclusions The CFD model showed the effect of the unsaturated fatty acid methyl esters present in soybean biodiesel on the spatial distributed values of NOx, oxygen and temperature during the combustion in engine cylinder. It was observed that the combustion of soybean biodiesel began about 3.89 CAD earlier than base diesel, and the in-cylinder peak pressure was dropped by 8.25%. Soybean biodiesel fuel was optimized by performing four starts of injection (SOI) at timings of − 18, − 16, − 15 and − 13,5 bTDC, and it was found that the combustion characteristics of soybean biodiesel are optimum at SOI = − 15 bTDC. These results indicate that the biodiesel fuel can be used as an alternative and environmentally friendly fuel in the engine without any modifications.https://doi.org/10.1186/s43088-023-00349-wBiodieselDiesel engineCombustionEmissionNumerical simulation |
| spellingShingle | Mohamed Khaled Abdelrazek Mohsen Mohamed Abdelaal Ahmed Mustafa El-Nahas Numerical simulation of a diesel engine performance powered by soybean biodiesel and diesel fuels Beni-Suef University Journal of Basic and Applied Sciences Biodiesel Diesel engine Combustion Emission Numerical simulation |
| title | Numerical simulation of a diesel engine performance powered by soybean biodiesel and diesel fuels |
| title_full | Numerical simulation of a diesel engine performance powered by soybean biodiesel and diesel fuels |
| title_fullStr | Numerical simulation of a diesel engine performance powered by soybean biodiesel and diesel fuels |
| title_full_unstemmed | Numerical simulation of a diesel engine performance powered by soybean biodiesel and diesel fuels |
| title_short | Numerical simulation of a diesel engine performance powered by soybean biodiesel and diesel fuels |
| title_sort | numerical simulation of a diesel engine performance powered by soybean biodiesel and diesel fuels |
| topic | Biodiesel Diesel engine Combustion Emission Numerical simulation |
| url | https://doi.org/10.1186/s43088-023-00349-w |
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