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DC Field | Value | Language |
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dc.contributor.author | Zhang, H | - |
dc.contributor.author | Zhao, Z | - |
dc.contributor.author | Wu, J | - |
dc.contributor.author | Wang, X | - |
dc.contributor.author | Ouyang, W | - |
dc.contributor.author | Wang, Z | - |
dc.date.accessioned | 2024-09-04T14:44:41Z | - |
dc.date.available | 2024-09-04T14:44:41Z | - |
dc.date.issued | 2024-07-10 | - |
dc.identifier | ORCiD: Zhonghui Zhao https://orcid.org/0009-0004-7061-5681 | - |
dc.identifier | ORCiD: Jun Wu https://orcid.org/0000-0002-8657-5475 | - |
dc.identifier | ORCiD: Xinyan Wang https://orcid.org/0000-0002-1988-3742 | - |
dc.identifier | ORCiD: Zhaowen Wang https://orcid.org/0000-0002-1988-3742 | - |
dc.identifier | 3382 | - |
dc.identifier.citation | Zhang, H. et al. (2024) 'Investigation of Split Diesel Injections in Methanol/Diesel Dual-Fuel Combustion in an Optical Engine', Energies, 2024, 17 (14), 3382, pp. 1 - 21. doi: 10.3390/en17143382. | en_US |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/29671 | - |
dc.description | Data Availability Statement: The original contributions presented in the study are included in the article, further inquiries can be directed to the corresponding author. | en_US |
dc.description.abstract | Methanol is a promising alternative fuel due to its wide availability of raw materials, mature production processes, and low production cost. However, because of the low cetane number, methanol must include a more reactive fuel to assist with combustion when used in compression ignition (CI) engines. In this study, based on the optical CI engine platform, methanol is injected into the intake port, and diesel is directly injected into the cylinder to achieve dual-fuel combustion. The effects of the methanol energy ratios and diesel split injection strategies on combustion are investigated. The results show that the premixed blue flame was mainly concentrated in the near wall region, whereas the yellow flame produced by diesel combustion tended to concentrate in the central region as the methanol energy ratio increased. When the methanol energy ratio exceeded 50%, the ignition delay was significantly prolonged, while the flame area was greatly reduced. Meanwhile, the peak values for the cylinder pressure and heat release rate decreased significantly, indicating a significant deterioration in combustion. At the earlier diesel pre-injection timing at −58°, the overall dual-fuel combustion at each main injection timing exhibited low-temperature premixed combustion characteristics, with a lower peak exothermic rate and flame brightness. At the later pre-injection timing at −33°, the spray flame at all main injection timings could be observed, with higher peak heat release rates and indications of thermal efficiency. Combustion at later main injection timings was characterized by diffusion combustion, and the main injection timing could effectively regulate the combustion process through phase adjustment. | en_US |
dc.description.sponsorship | The paper was supported by National Key Laboratory of Marine Engine Science and Technology. The authors also acknowledge the project of Combustion and Emission Control Technologies Research for Ammonia-fueled Marine Engines based on the Diesel Cycle. | en_US |
dc.format.extent | 1 - 21 | - |
dc.language | English | - |
dc.language.iso | en_US | en_US |
dc.publisher | MDPI | en_US |
dc.rights | Copyright © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | - |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | optical engine | en_US |
dc.subject | diesel/methanol | en_US |
dc.subject | methanol energy ratio | en_US |
dc.subject | main injection timing | en_US |
dc.subject | combustion process | en_US |
dc.title | Investigation of Split Diesel Injections in Methanol/Diesel Dual-Fuel Combustion in an Optical Engine | en_US |
dc.type | Article | en_US |
dc.date.dateAccepted | 2024-07-08 | - |
dc.identifier.doi | https://doi.org/10.3390/en17143382 | - |
dc.relation.isPartOf | Energies | - |
pubs.issue | 14 | - |
pubs.publication-status | Published | - |
pubs.volume | 17 | - |
dc.identifier.eissn | 1996-1073 | - |
dc.rights.license | https://creativecommons.org/licenses/by/4.0/legalcode.en | - |
dc.rights.holder | The authors | - |
Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
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FullText.pdf | Copyright © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). | 6.87 MB | Adobe PDF | View/Open |
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