Investigation on Multi-Load Reaction Characteristics and Field Synergy of a Diesel Engine SCR System Based on an Eley-Rideal and Langmuir-Hinshelwood Dual-Mechanism Coupled Model.
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| Title: | Investigation on Multi-Load Reaction Characteristics and Field Synergy of a Diesel Engine SCR System Based on an Eley-Rideal and Langmuir-Hinshelwood Dual-Mechanism Coupled Model. |
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| Authors: | Nian, Muxin1 (AUTHOR), Liao, Jingyang1,2 (AUTHOR), Zhong, Weihuang1,2 (AUTHOR), Zheng, Linfeng1,2 (AUTHOR), Luo, Shengfeng1 (AUTHOR), Zhang, Haichuan1 (AUTHOR) zhanghaichuan@sztu.edu.cn |
| Source: | Energies (19961073). Dec2025, Vol. 18 Issue 24, p6571. 26p. |
| Subjects: | Catalytic reduction, Reaction mechanisms (Chemistry), Abatement (Atmospheric chemistry), Statistical models, Temperature distribution, Catalysts |
| Abstract: | The selective catalytic reduction (SCR) system is a key component for addressing NOx emissions from internal combustion engines. To resolve the issues of modeling distortion in SCR systems and the difficulty in characterizing the local reaction mechanism, a multi-dimensional SCR reaction model based on the coupling of Eley-Rideal (E-R) and Langmuir-Hinshelwood (L-H) dual mechanisms was established and conducted by experiment. The SCR catalytic characteristics and the dual-mechanism reaction process were systematically investigated. Additionally, based on the combined analysis of species concentration distribution coupled with temperature characteristics, a calculation method for the synergy of concentration-temperature fields was developed, and the synergistic characteristics of the concentration-temperature fields were explored. The results showed that high load accelerated the light-off speed, but this effect was counteracted by the negative impact of high flow rate. A strong negative correlation was maintained between temperature and NOx concentration across the full load range, and the axial consistency increased with load increasing. The results provide important theoretical support for the mechanism analysis of diesel engine SCR reactions and the optimization of thermal management. [ABSTRACT FROM AUTHOR] |
| Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 190470686 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Investigation on Multi-Load Reaction Characteristics and Field Synergy of a Diesel Engine SCR System Based on an Eley-Rideal and Langmuir-Hinshelwood Dual-Mechanism Coupled Model. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Nian%2C+Muxin%22">Nian, Muxin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liao%2C+Jingyang%22">Liao, Jingyang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhong%2C+Weihuang%22">Zhong, Weihuang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zheng%2C+Linfeng%22">Zheng, Linfeng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Luo%2C+Shengfeng%22">Luo, Shengfeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Haichuan%22">Zhang, Haichuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhanghaichuan@sztu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. Dec2025, Vol. 18 Issue 24, p6571. 26p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Catalytic+reduction%22">Catalytic reduction</searchLink><br /><searchLink fieldCode="DE" term="%22Reaction+mechanisms+%28Chemistry%29%22">Reaction mechanisms (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Abatement+%28Atmospheric+chemistry%29%22">Abatement (Atmospheric chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Statistical+models%22">Statistical models</searchLink><br /><searchLink fieldCode="DE" term="%22Temperature+distribution%22">Temperature distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Catalysts%22">Catalysts</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The selective catalytic reduction (SCR) system is a key component for addressing NOx emissions from internal combustion engines. To resolve the issues of modeling distortion in SCR systems and the difficulty in characterizing the local reaction mechanism, a multi-dimensional SCR reaction model based on the coupling of Eley-Rideal (E-R) and Langmuir-Hinshelwood (L-H) dual mechanisms was established and conducted by experiment. The SCR catalytic characteristics and the dual-mechanism reaction process were systematically investigated. Additionally, based on the combined analysis of species concentration distribution coupled with temperature characteristics, a calculation method for the synergy of concentration-temperature fields was developed, and the synergistic characteristics of the concentration-temperature fields were explored. The results showed that high load accelerated the light-off speed, but this effect was counteracted by the negative impact of high flow rate. A strong negative correlation was maintained between temperature and NOx concentration across the full load range, and the axial consistency increased with load increasing. The results provide important theoretical support for the mechanism analysis of diesel engine SCR reactions and the optimization of thermal management. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Energies (19961073) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/en18246571 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 26 StartPage: 6571 Subjects: – SubjectFull: Catalytic reduction Type: general – SubjectFull: Reaction mechanisms (Chemistry) Type: general – SubjectFull: Abatement (Atmospheric chemistry) Type: general – SubjectFull: Statistical models Type: general – SubjectFull: Temperature distribution Type: general – SubjectFull: Catalysts Type: general Titles: – TitleFull: Investigation on Multi-Load Reaction Characteristics and Field Synergy of a Diesel Engine SCR System Based on an Eley-Rideal and Langmuir-Hinshelwood Dual-Mechanism Coupled Model. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Nian, Muxin – PersonEntity: Name: NameFull: Liao, Jingyang – PersonEntity: Name: NameFull: Zhong, Weihuang – PersonEntity: Name: NameFull: Zheng, Linfeng – PersonEntity: Name: NameFull: Luo, Shengfeng – PersonEntity: Name: NameFull: Zhang, Haichuan IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 12 Text: Dec2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 19961073 Numbering: – Type: volume Value: 18 – Type: issue Value: 24 Titles: – TitleFull: Energies (19961073) Type: main |
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