Study on Spray Characteristics and 0-D Model of Marine Injector with Large Orifice Diameter.
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| Title: | Study on Spray Characteristics and 0-D Model of Marine Injector with Large Orifice Diameter. |
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| Authors: | Lu, Xiuwei1 (AUTHOR), Wei, Lijiang1 (AUTHOR) ljwei0630@163.com, Sun, Rongkang1 (AUTHOR) |
| Source: | Combustion Science & Technology. 2025, Vol. 197 Issue 16, p4097-4118. 22p. |
| Subjects: | Biodiesel fuels, Injectors, Injections, Green fuels, Atmospheric pressure, Atomization, Diesel motors |
| Abstract: | Low carbon, cleanliness and efficiency are the three key challenges facing the development of diesel engines. Biodiesel is a crucial step in the transition from fossil fuels to zero-carbon fuels. This study was carried out to investigate the effects of injection pressure and ambient pressure on the biodiesel spray characteristics of a marine large orifice diameter injector. Injection mass has a nonlinear relationship with short injection duration and a linear relationship with long injection duration. Increasing the injection pressure shortens the nonlinear stage and enhances the linear effect. When the injection pressure is increased from 35 MPa to 140 MPa, the injection delay is shortened by 10% (2.5 ms), and the diameter nozzle has almost unaffected on the injection delay. The Arai model was revised based on experimental data to improve its prediction effect on sprays with large nozzle diameters. The new model considers the effects of fuel density and ambient density on penetration before and after breakup, respectively. The penetration of the new model is still proportional to time of after start of injection (t) before the breakup and proportional to t0.6 after the breakup. Increasing the ambient pressure enhances the influence of injection conditions on dimensionless penetration. Compared with the Arai model, the new model reduces the sensitivity of the dimensionless penetration to the injection pressure. Research on biodiesel spray and spray models under large nozzle diameter conditions will be of great help to the application of low-carbon and clean fuels in marine diesel engines. [ABSTRACT FROM AUTHOR] |
| Copyright of Combustion Science & Technology is the property of Taylor & Francis Ltd 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 |
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| Header | DbId: egs DbLabel: Engineering Source An: 188670900 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Study on Spray Characteristics and 0-D Model of Marine Injector with Large Orifice Diameter. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Lu%2C+Xiuwei%22">Lu, Xiuwei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wei%2C+Lijiang%22">Wei, Lijiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> ljwei0630@163.com</i><br /><searchLink fieldCode="AR" term="%22Sun%2C+Rongkang%22">Sun, Rongkang</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Combustion+Science+%26+Technology%22">Combustion Science & Technology</searchLink>. 2025, Vol. 197 Issue 16, p4097-4118. 22p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Biodiesel+fuels%22">Biodiesel fuels</searchLink><br /><searchLink fieldCode="DE" term="%22Injectors%22">Injectors</searchLink><br /><searchLink fieldCode="DE" term="%22Injections%22">Injections</searchLink><br /><searchLink fieldCode="DE" term="%22Green+fuels%22">Green fuels</searchLink><br /><searchLink fieldCode="DE" term="%22Atmospheric+pressure%22">Atmospheric pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Atomization%22">Atomization</searchLink><br /><searchLink fieldCode="DE" term="%22Diesel+motors%22">Diesel motors</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Low carbon, cleanliness and efficiency are the three key challenges facing the development of diesel engines. Biodiesel is a crucial step in the transition from fossil fuels to zero-carbon fuels. This study was carried out to investigate the effects of injection pressure and ambient pressure on the biodiesel spray characteristics of a marine large orifice diameter injector. Injection mass has a nonlinear relationship with short injection duration and a linear relationship with long injection duration. Increasing the injection pressure shortens the nonlinear stage and enhances the linear effect. When the injection pressure is increased from 35 MPa to 140 MPa, the injection delay is shortened by 10% (2.5 ms), and the diameter nozzle has almost unaffected on the injection delay. The Arai model was revised based on experimental data to improve its prediction effect on sprays with large nozzle diameters. The new model considers the effects of fuel density and ambient density on penetration before and after breakup, respectively. The penetration of the new model is still proportional to time of after start of injection (t) before the breakup and proportional to t0.6 after the breakup. Increasing the ambient pressure enhances the influence of injection conditions on dimensionless penetration. Compared with the Arai model, the new model reduces the sensitivity of the dimensionless penetration to the injection pressure. Research on biodiesel spray and spray models under large nozzle diameter conditions will be of great help to the application of low-carbon and clean fuels in marine diesel engines. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Combustion Science & Technology is the property of Taylor & Francis Ltd 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: 10.1080/00102202.2024.2361088 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 22 StartPage: 4097 Subjects: – SubjectFull: Biodiesel fuels Type: general – SubjectFull: Injectors Type: general – SubjectFull: Injections Type: general – SubjectFull: Green fuels Type: general – SubjectFull: Atmospheric pressure Type: general – SubjectFull: Atomization Type: general – SubjectFull: Diesel motors Type: general Titles: – TitleFull: Study on Spray Characteristics and 0-D Model of Marine Injector with Large Orifice Diameter. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Lu, Xiuwei – PersonEntity: Name: NameFull: Wei, Lijiang – PersonEntity: Name: NameFull: Sun, Rongkang IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 11 Text: 2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 00102202 Numbering: – Type: volume Value: 197 – Type: issue Value: 16 Titles: – TitleFull: Combustion Science & Technology Type: main |
| ResultId | 1 |
