Numerical Study on a Diesel/Dissociated Methanol Gas Compression Ignition Engine with Exhaust Gas Recirculation
Hydrogen is the most promising alternative fuel in the field of engines. Exhaust heat-assisted methanol dissociation is an attractive approach for generating hydrogen. In this work, simulations are conducted on a compression ignition engine fueled with different proportions of diesel-dissociated met...
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| Format: | Article |
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MDPI AG
2023-08-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/17/9612 |
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| author | Bo Li Yihua Chen Fei Zhong Hao Xu |
| author_facet | Bo Li Yihua Chen Fei Zhong Hao Xu |
| author_sort | Bo Li |
| collection | DOAJ |
| description | Hydrogen is the most promising alternative fuel in the field of engines. Exhaust heat-assisted methanol dissociation is an attractive approach for generating hydrogen. In this work, simulations are conducted on a compression ignition engine fueled with different proportions of diesel-dissociated methanol gas (DMG) blends at intermediate engine speed, full load, and 0% EGR ratio. The results reveal that the indicated thermal efficiency and indicated mean effective pressure are greatly enhanced, combustion efficiency is increased, and regular emissions of CO, HC, and soot are reduced, while NOx emissions are reduced with increased DMG substitution. In addition, a simulation is conducted at an intermediate engine speed, full load, 15% DMG substitution ratio, and varying EGR ratios of 0–20%. The results indicate that the dual-fuel engine outperforms the original engine with respect to power, fuel economy, and regular emissions, once an optimal EGR rate is adopted. |
| first_indexed | 2024-03-10T23:27:33Z |
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| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T23:27:33Z |
| publishDate | 2023-08-01 |
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| spelling | doaj.art-4005aa6c70974ac0a69555c88f7c3c1e2023-11-19T07:49:27ZengMDPI AGApplied Sciences2076-34172023-08-011317961210.3390/app13179612Numerical Study on a Diesel/Dissociated Methanol Gas Compression Ignition Engine with Exhaust Gas RecirculationBo Li0Yihua Chen1Fei Zhong2Hao Xu3School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, ChinaSchool of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, ChinaSchool of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, ChinaSchool of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, ChinaHydrogen is the most promising alternative fuel in the field of engines. Exhaust heat-assisted methanol dissociation is an attractive approach for generating hydrogen. In this work, simulations are conducted on a compression ignition engine fueled with different proportions of diesel-dissociated methanol gas (DMG) blends at intermediate engine speed, full load, and 0% EGR ratio. The results reveal that the indicated thermal efficiency and indicated mean effective pressure are greatly enhanced, combustion efficiency is increased, and regular emissions of CO, HC, and soot are reduced, while NOx emissions are reduced with increased DMG substitution. In addition, a simulation is conducted at an intermediate engine speed, full load, 15% DMG substitution ratio, and varying EGR ratios of 0–20%. The results indicate that the dual-fuel engine outperforms the original engine with respect to power, fuel economy, and regular emissions, once an optimal EGR rate is adopted.https://www.mdpi.com/2076-3417/13/17/9612numerical studydissociated methanol gascompression ignition enginesubstitutionexhaust gas recirculationemission |
| spellingShingle | Bo Li Yihua Chen Fei Zhong Hao Xu Numerical Study on a Diesel/Dissociated Methanol Gas Compression Ignition Engine with Exhaust Gas Recirculation Applied Sciences numerical study dissociated methanol gas compression ignition engine substitution exhaust gas recirculation emission |
| title | Numerical Study on a Diesel/Dissociated Methanol Gas Compression Ignition Engine with Exhaust Gas Recirculation |
| title_full | Numerical Study on a Diesel/Dissociated Methanol Gas Compression Ignition Engine with Exhaust Gas Recirculation |
| title_fullStr | Numerical Study on a Diesel/Dissociated Methanol Gas Compression Ignition Engine with Exhaust Gas Recirculation |
| title_full_unstemmed | Numerical Study on a Diesel/Dissociated Methanol Gas Compression Ignition Engine with Exhaust Gas Recirculation |
| title_short | Numerical Study on a Diesel/Dissociated Methanol Gas Compression Ignition Engine with Exhaust Gas Recirculation |
| title_sort | numerical study on a diesel dissociated methanol gas compression ignition engine with exhaust gas recirculation |
| topic | numerical study dissociated methanol gas compression ignition engine substitution exhaust gas recirculation emission |
| url | https://www.mdpi.com/2076-3417/13/17/9612 |
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