Isolating the influence of exhaust gas recirculation on the ignition and combustion reaction for combustion control of polyoxymethylene dimethyl ethers (PODEn)/gasoline under various fuel distribution conditions
Using exhaust gas recirculation (EGR) is a potential way to modulate the combustion process and improve the performance of a compression-ignition engine. In this study, the influence of EGR on the ignition and combustion reaction of polyoxymethylene dimethyl ethers (PODEn) as a gasoline-doped fuel w...
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Elsevier
2025-08-01
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| Series: | Fuel Processing Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0378382025000505 |
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| author | Huiquan Duan Wei Cao Chongchong Ren Min Liu Shuzhan Bai Guoxiang Li |
| author_facet | Huiquan Duan Wei Cao Chongchong Ren Min Liu Shuzhan Bai Guoxiang Li |
| author_sort | Huiquan Duan |
| collection | DOAJ |
| description | Using exhaust gas recirculation (EGR) is a potential way to modulate the combustion process and improve the performance of a compression-ignition engine. In this study, the influence of EGR on the ignition and combustion reaction of polyoxymethylene dimethyl ethers (PODEn) as a gasoline-doped fuel was isolated for combustion control under various fuel distribution conditions, including fuel homogeneous, concentration-stratification, and reactivity-stratification conditions. In addition, the effect of EGR on engine performance was also isolated from CA50 (50 % burn point). The results indicated that for P20G80 (blend of 20 % PODEn and 80 % gasoline by volume), increasing 10 % PODEn and simultaneously introducing 60 % EGR can realize the same CA50 control as P20G80 under homogeneous conditions. For P20G80 under concentration-stratification conditions at the start of injection (SOI) of −180 and −160 °CA ATDC, introducing a slight amount of EGR below 10 % can promote the combustion intensity, since the unburned fuel recycled from the previous cycle through the EGR increases the local fuel concentration. Under fuel reactivity-stratification conditions, compared to the test conditions without EGR, the decreasing rate of ignition delay with the retarded SOI significantly reduces with the introduction of 25 % EGR, suggesting a nonlinear effect of EGR on the ignition delay. |
| format | Article |
| id | doaj-art-c893fb0be0e5464e942e82b999e74ea1 |
| institution | DOAJ |
| issn | 0378-3820 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Fuel Processing Technology |
| spelling | doaj-art-c893fb0be0e5464e942e82b999e74ea12025-08-20T03:12:27ZengElsevierFuel Processing Technology0378-38202025-08-0127310822610.1016/j.fuproc.2025.108226Isolating the influence of exhaust gas recirculation on the ignition and combustion reaction for combustion control of polyoxymethylene dimethyl ethers (PODEn)/gasoline under various fuel distribution conditionsHuiquan Duan0Wei Cao1Chongchong Ren2Min Liu3Shuzhan Bai4Guoxiang Li5School of Nuclear Science, Energy and Power Engineering, Shandong University, PR China; Shandong Key Laboratory of Advanced Engine Piston Assembly, PR China; Corresponding authors at: School of Nuclear Science, Energy and Power Engineering, Shandong University, Jinan 250100, PR China.School of Nuclear Science, Energy and Power Engineering, Shandong University, PR China; Shandong Key Laboratory of Advanced Engine Piston Assembly, PR ChinaWeichai Power Co., Ltd., Weifang 261061, ChinaWeichai Power Co., Ltd., Weifang 261061, ChinaSchool of Nuclear Science, Energy and Power Engineering, Shandong University, PR China; Corresponding authors at: School of Nuclear Science, Energy and Power Engineering, Shandong University, Jinan 250100, PR China.School of Nuclear Science, Energy and Power Engineering, Shandong University, PR China; Shandong Key Laboratory of Advanced Engine Piston Assembly, PR ChinaUsing exhaust gas recirculation (EGR) is a potential way to modulate the combustion process and improve the performance of a compression-ignition engine. In this study, the influence of EGR on the ignition and combustion reaction of polyoxymethylene dimethyl ethers (PODEn) as a gasoline-doped fuel was isolated for combustion control under various fuel distribution conditions, including fuel homogeneous, concentration-stratification, and reactivity-stratification conditions. In addition, the effect of EGR on engine performance was also isolated from CA50 (50 % burn point). The results indicated that for P20G80 (blend of 20 % PODEn and 80 % gasoline by volume), increasing 10 % PODEn and simultaneously introducing 60 % EGR can realize the same CA50 control as P20G80 under homogeneous conditions. For P20G80 under concentration-stratification conditions at the start of injection (SOI) of −180 and −160 °CA ATDC, introducing a slight amount of EGR below 10 % can promote the combustion intensity, since the unburned fuel recycled from the previous cycle through the EGR increases the local fuel concentration. Under fuel reactivity-stratification conditions, compared to the test conditions without EGR, the decreasing rate of ignition delay with the retarded SOI significantly reduces with the introduction of 25 % EGR, suggesting a nonlinear effect of EGR on the ignition delay.http://www.sciencedirect.com/science/article/pii/S0378382025000505Ignition and combustion reactionExhaust gas recirculationCombustion controlVarious fuel distributionsPolyoxymethylene dimethyl ethers |
| spellingShingle | Huiquan Duan Wei Cao Chongchong Ren Min Liu Shuzhan Bai Guoxiang Li Isolating the influence of exhaust gas recirculation on the ignition and combustion reaction for combustion control of polyoxymethylene dimethyl ethers (PODEn)/gasoline under various fuel distribution conditions Fuel Processing Technology Ignition and combustion reaction Exhaust gas recirculation Combustion control Various fuel distributions Polyoxymethylene dimethyl ethers |
| title | Isolating the influence of exhaust gas recirculation on the ignition and combustion reaction for combustion control of polyoxymethylene dimethyl ethers (PODEn)/gasoline under various fuel distribution conditions |
| title_full | Isolating the influence of exhaust gas recirculation on the ignition and combustion reaction for combustion control of polyoxymethylene dimethyl ethers (PODEn)/gasoline under various fuel distribution conditions |
| title_fullStr | Isolating the influence of exhaust gas recirculation on the ignition and combustion reaction for combustion control of polyoxymethylene dimethyl ethers (PODEn)/gasoline under various fuel distribution conditions |
| title_full_unstemmed | Isolating the influence of exhaust gas recirculation on the ignition and combustion reaction for combustion control of polyoxymethylene dimethyl ethers (PODEn)/gasoline under various fuel distribution conditions |
| title_short | Isolating the influence of exhaust gas recirculation on the ignition and combustion reaction for combustion control of polyoxymethylene dimethyl ethers (PODEn)/gasoline under various fuel distribution conditions |
| title_sort | isolating the influence of exhaust gas recirculation on the ignition and combustion reaction for combustion control of polyoxymethylene dimethyl ethers poden gasoline under various fuel distribution conditions |
| topic | Ignition and combustion reaction Exhaust gas recirculation Combustion control Various fuel distributions Polyoxymethylene dimethyl ethers |
| url | http://www.sciencedirect.com/science/article/pii/S0378382025000505 |
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