Numerical study on effects of EGR on combustion and NOx emissions of gasoline blended dissociated methanol gas engine
Exhaust gas recirculation (EGR), which can reduce NOx emissions effectively, has been widely studied in engines, but there are few studies using EGR on gasoline blended dissociated methanol gas (GDM) engines. To reduce the NOx emissions of GDM engines, investigation is conducted based on numerical s...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Energy Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484723014191 |
| _version_ | 1827397054979112960 |
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| author | Wangbin Liu Yankun Jiang Beidong Zhang Yexin Chen |
| author_facet | Wangbin Liu Yankun Jiang Beidong Zhang Yexin Chen |
| author_sort | Wangbin Liu |
| collection | DOAJ |
| description | Exhaust gas recirculation (EGR), which can reduce NOx emissions effectively, has been widely studied in engines, but there are few studies using EGR on gasoline blended dissociated methanol gas (GDM) engines. To reduce the NOx emissions of GDM engines, investigation is conducted based on numerical simulation in this study. The accuracy of the engine numerical model is first validated through experimental data, and then the effects of EGR on GDM engine performance are studied, including combustion characteristics and NOx emissions. Numerical simulation results show that the application of EGR reduces the cylinder pressure and the heat release rate of GDM engine, and delays the corresponding crank angle of their peak value respectively. The application of EGR also delays the combustion center, and extends the ignition delay and combustion duration. As EGR rate increases, the NOx emissions decrease significantly. This study offers valuable insights into the potential application of EGR technology in GDM engines. |
| first_indexed | 2024-03-08T19:01:42Z |
| format | Article |
| id | doaj.art-45bee2619be84f21b7dec17bf6d70692 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-03-08T19:01:42Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-45bee2619be84f21b7dec17bf6d706922023-12-28T05:18:15ZengElsevierEnergy Reports2352-48472023-11-019245249Numerical study on effects of EGR on combustion and NOx emissions of gasoline blended dissociated methanol gas engineWangbin Liu0Yankun Jiang1Beidong Zhang2Yexin Chen3School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China; Corresponding author at: School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaSchool of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaExhaust gas recirculation (EGR), which can reduce NOx emissions effectively, has been widely studied in engines, but there are few studies using EGR on gasoline blended dissociated methanol gas (GDM) engines. To reduce the NOx emissions of GDM engines, investigation is conducted based on numerical simulation in this study. The accuracy of the engine numerical model is first validated through experimental data, and then the effects of EGR on GDM engine performance are studied, including combustion characteristics and NOx emissions. Numerical simulation results show that the application of EGR reduces the cylinder pressure and the heat release rate of GDM engine, and delays the corresponding crank angle of their peak value respectively. The application of EGR also delays the combustion center, and extends the ignition delay and combustion duration. As EGR rate increases, the NOx emissions decrease significantly. This study offers valuable insights into the potential application of EGR technology in GDM engines.http://www.sciencedirect.com/science/article/pii/S2352484723014191Exhaust gas recirculationGasoline blended dissociated methanol gas engineCombustion characteristicsNOx emissionsNumerical simulation |
| spellingShingle | Wangbin Liu Yankun Jiang Beidong Zhang Yexin Chen Numerical study on effects of EGR on combustion and NOx emissions of gasoline blended dissociated methanol gas engine Energy Reports Exhaust gas recirculation Gasoline blended dissociated methanol gas engine Combustion characteristics NOx emissions Numerical simulation |
| title | Numerical study on effects of EGR on combustion and NOx emissions of gasoline blended dissociated methanol gas engine |
| title_full | Numerical study on effects of EGR on combustion and NOx emissions of gasoline blended dissociated methanol gas engine |
| title_fullStr | Numerical study on effects of EGR on combustion and NOx emissions of gasoline blended dissociated methanol gas engine |
| title_full_unstemmed | Numerical study on effects of EGR on combustion and NOx emissions of gasoline blended dissociated methanol gas engine |
| title_short | Numerical study on effects of EGR on combustion and NOx emissions of gasoline blended dissociated methanol gas engine |
| title_sort | numerical study on effects of egr on combustion and nox emissions of gasoline blended dissociated methanol gas engine |
| topic | Exhaust gas recirculation Gasoline blended dissociated methanol gas engine Combustion characteristics NOx emissions Numerical simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2352484723014191 |
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