Multipulse Ballistic Injection: A Novel Method for Improving Low Temperature Combustion with Early Injection Timings
Nowadays, increasingly stricter regulations on emission reduction are inducing rapid developments in combustion science. Low-temperature combustion (LTC) is an advanced combustion technology that increases an engine’s thermal efficiency and even provides low emissions of nitrogen oxides (NO<sub&g...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/14/13/3727 |
| _version_ | 1797529277507305472 |
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| author | Márton Virt Gergely Granovitter Máté Zöldy Ádám Bárdos Ádám Nyerges |
| author_facet | Márton Virt Gergely Granovitter Máté Zöldy Ádám Bárdos Ádám Nyerges |
| author_sort | Márton Virt |
| collection | DOAJ |
| description | Nowadays, increasingly stricter regulations on emission reduction are inducing rapid developments in combustion science. Low-temperature combustion (LTC) is an advanced combustion technology that increases an engine’s thermal efficiency and even provides low emissions of nitrogen oxides (NO<sub>x</sub>) and particulate matter (PM). The technology often uses early direct injections to achieve sufficient mixture homogeneity. This leads to increasing wall wetting and lower combustion efficiency. This paper introduces the Multipulse ballistic injection (MBI) method to improve combustion with early injection timings. The research was carried out in a four-cylinder medium-duty diesel engine with high-pressure exhaust gas recirculation (HP-EGR). The investigation was divided into two experiments. In the first experiment, MBI was examined without EGR, and in the second, EGR was applied to study its effects. It was found that the MBI strategy decreased wall wetting and increased homogeneity and the indicated mean effective pressure (IMEP) at early injection angles. |
| first_indexed | 2024-03-10T10:11:29Z |
| format | Article |
| id | doaj.art-3592ffd5872446778678ee185e77dbc9 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T10:11:29Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-3592ffd5872446778678ee185e77dbc92023-11-22T01:09:47ZengMDPI AGEnergies1996-10732021-06-011413372710.3390/en14133727Multipulse Ballistic Injection: A Novel Method for Improving Low Temperature Combustion with Early Injection TimingsMárton Virt0Gergely Granovitter1Máté Zöldy2Ádám Bárdos3Ádám Nyerges4Department of Automotive Technology, Budapest University of Technology and Economics, H-1111 Budapest, HungaryDepartment of Automotive Technology, Budapest University of Technology and Economics, H-1111 Budapest, HungaryDepartment of Automotive Technology, Budapest University of Technology and Economics, H-1111 Budapest, HungaryDepartment of Automotive Technology, Budapest University of Technology and Economics, H-1111 Budapest, HungaryDepartment of Automotive Technology, Budapest University of Technology and Economics, H-1111 Budapest, HungaryNowadays, increasingly stricter regulations on emission reduction are inducing rapid developments in combustion science. Low-temperature combustion (LTC) is an advanced combustion technology that increases an engine’s thermal efficiency and even provides low emissions of nitrogen oxides (NO<sub>x</sub>) and particulate matter (PM). The technology often uses early direct injections to achieve sufficient mixture homogeneity. This leads to increasing wall wetting and lower combustion efficiency. This paper introduces the Multipulse ballistic injection (MBI) method to improve combustion with early injection timings. The research was carried out in a four-cylinder medium-duty diesel engine with high-pressure exhaust gas recirculation (HP-EGR). The investigation was divided into two experiments. In the first experiment, MBI was examined without EGR, and in the second, EGR was applied to study its effects. It was found that the MBI strategy decreased wall wetting and increased homogeneity and the indicated mean effective pressure (IMEP) at early injection angles.https://www.mdpi.com/1996-1073/14/13/3727low temperature combustionmultipulse ballistic injectionwall wettingmixture homogeneity |
| spellingShingle | Márton Virt Gergely Granovitter Máté Zöldy Ádám Bárdos Ádám Nyerges Multipulse Ballistic Injection: A Novel Method for Improving Low Temperature Combustion with Early Injection Timings Energies low temperature combustion multipulse ballistic injection wall wetting mixture homogeneity |
| title | Multipulse Ballistic Injection: A Novel Method for Improving Low Temperature Combustion with Early Injection Timings |
| title_full | Multipulse Ballistic Injection: A Novel Method for Improving Low Temperature Combustion with Early Injection Timings |
| title_fullStr | Multipulse Ballistic Injection: A Novel Method for Improving Low Temperature Combustion with Early Injection Timings |
| title_full_unstemmed | Multipulse Ballistic Injection: A Novel Method for Improving Low Temperature Combustion with Early Injection Timings |
| title_short | Multipulse Ballistic Injection: A Novel Method for Improving Low Temperature Combustion with Early Injection Timings |
| title_sort | multipulse ballistic injection a novel method for improving low temperature combustion with early injection timings |
| topic | low temperature combustion multipulse ballistic injection wall wetting mixture homogeneity |
| url | https://www.mdpi.com/1996-1073/14/13/3727 |
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