The influence of pilot-main injection matching on DI diesel engine combustion using an endoscopic visualization system.
Saved in:
| Title: | The influence of pilot-main injection matching on DI diesel engine combustion using an endoscopic visualization system. |
|---|---|
| Authors: | Li, Xiang-Rong1, Yang, Wei1 yangwei2184@126.com, Zhao, Lu-Ming1, Liu, Fu-Shui1 |
| Source: | Fuel (0016-2361). Jan2017, Vol. 188, p575-585. 11p. |
| Subjects: | Diesel motor combustion, Gas mixtures, Gas as fuel, Fuel pumps, High pressure (Technology) |
| Abstract: | Several studies have found that pilot injection enhances the mixture and combustion of the main injection fuel, which effectively improves performance and reduces emission. However, only a few investigations have focused on remediating the negative effect of pilot injection, which is that it restricts the advancement of the split injection. Therefore we study the influence of pilot-main injection matching on the combustion of diesel engines. The experiment was conducted using a single-cylinder direct injection diesel engine equipped with a high-pressure common rail system and an endoscopic visualization system. Through the endoscopic visualization method, the effect of pilot injection on mixing, combustion characteristics, and soot formation of the main injection fuel was investigated. The results show that the thermos atmosphere of a pilot injection with the correct parameters (a small pilot ratio and short dwell time) improves the mixture and combustion of the main injection fuel, which shortens the combustion duration. Compared with single injection as well as with split injections with longer dwell times or larger pilot injections, the pilot injection with a small pilot ratio and short dwell time obtained higher thermal efficiency. Also flame temperature peak and soot concentration decreased. For spilt injection with longer dwell time, the TA by pilot injection traversed far away from the main injection, thus not to promote evaporation, mixing, and ignition of the main injection fuel; for spilt injection with larger pilot injection, the TA by pilot injection will constraint the combustion of the main injection fuel, deteriorating mixing and combustion. [ABSTRACT FROM AUTHOR] |
| Copyright of Fuel (0016-2361) is the property of Elsevier B.V. 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 |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 119176902 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: The influence of pilot-main injection matching on DI diesel engine combustion using an endoscopic visualization system. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Li%2C+Xiang-Rong%22">Li, Xiang-Rong</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yang%2C+Wei%22">Yang, Wei</searchLink><relatesTo>1</relatesTo><i> yangwei2184@126.com</i><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Lu-Ming%22">Zhao, Lu-Ming</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Liu%2C+Fu-Shui%22">Liu, Fu-Shui</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Fuel+%280016-2361%29%22">Fuel (0016-2361)</searchLink>. Jan2017, Vol. 188, p575-585. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Diesel+motor+combustion%22">Diesel motor combustion</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+mixtures%22">Gas mixtures</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+as+fuel%22">Gas as fuel</searchLink><br /><searchLink fieldCode="DE" term="%22Fuel+pumps%22">Fuel pumps</searchLink><br /><searchLink fieldCode="DE" term="%22High+pressure+%28Technology%29%22">High pressure (Technology)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Several studies have found that pilot injection enhances the mixture and combustion of the main injection fuel, which effectively improves performance and reduces emission. However, only a few investigations have focused on remediating the negative effect of pilot injection, which is that it restricts the advancement of the split injection. Therefore we study the influence of pilot-main injection matching on the combustion of diesel engines. The experiment was conducted using a single-cylinder direct injection diesel engine equipped with a high-pressure common rail system and an endoscopic visualization system. Through the endoscopic visualization method, the effect of pilot injection on mixing, combustion characteristics, and soot formation of the main injection fuel was investigated. The results show that the thermos atmosphere of a pilot injection with the correct parameters (a small pilot ratio and short dwell time) improves the mixture and combustion of the main injection fuel, which shortens the combustion duration. Compared with single injection as well as with split injections with longer dwell times or larger pilot injections, the pilot injection with a small pilot ratio and short dwell time obtained higher thermal efficiency. Also flame temperature peak and soot concentration decreased. For spilt injection with longer dwell time, the TA by pilot injection traversed far away from the main injection, thus not to promote evaporation, mixing, and ignition of the main injection fuel; for spilt injection with larger pilot injection, the TA by pilot injection will constraint the combustion of the main injection fuel, deteriorating mixing and combustion. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Fuel (0016-2361) is the property of Elsevier B.V. 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.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=119176902 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.fuel.2016.10.069 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 575 Subjects: – SubjectFull: Diesel motor combustion Type: general – SubjectFull: Gas mixtures Type: general – SubjectFull: Gas as fuel Type: general – SubjectFull: Fuel pumps Type: general – SubjectFull: High pressure (Technology) Type: general Titles: – TitleFull: The influence of pilot-main injection matching on DI diesel engine combustion using an endoscopic visualization system. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Li, Xiang-Rong – PersonEntity: Name: NameFull: Yang, Wei – PersonEntity: Name: NameFull: Zhao, Lu-Ming – PersonEntity: Name: NameFull: Liu, Fu-Shui IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 01 Text: Jan2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 00162361 Numbering: – Type: volume Value: 188 Titles: – TitleFull: Fuel (0016-2361) Type: main |
| ResultId | 1 |
