General comparison of pre-chamber jet ignition and spark ignition on combustion and emission characteristics of a methanol direct injection engine
Compared with spark ignition (SI), pre-chamber jet ignition (PCJI) can effectively accelerate the combustion and extend lean burn limit. In this paper, the effects of PCJI and SI on methanol direct injection engine were investigated experimentally. Combustion comparison shows that PCJI can effective...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-06-01
|
| Series: | Case Studies in Thermal Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214157X25003867 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850195745698742272 |
|---|---|
| author | Hailiang Kou Xiaodong An Hao Duan Xiaojun Yin Ke Zeng |
| author_facet | Hailiang Kou Xiaodong An Hao Duan Xiaojun Yin Ke Zeng |
| author_sort | Hailiang Kou |
| collection | DOAJ |
| description | Compared with spark ignition (SI), pre-chamber jet ignition (PCJI) can effectively accelerate the combustion and extend lean burn limit. In this paper, the effects of PCJI and SI on methanol direct injection engine were investigated experimentally. Combustion comparison shows that PCJI can effectively shorten the ignition delay period and combustion duration. Especially under lean conditions with an excess air ratio (λ) being 1.3, PCJI can shorten the combustion duration by 45 % compared with SI. Lean burn limits and emissions are also improved. The λ limit for lean burn in SI mode is 1.4, while in PCJI mode it extends to 1.5. Under the lean condition with λ being 1.5, the BSHC and BSCO emissions in PCJI mode are reduced by 42.7 % and 27.6 %. The indicated mean effective pressure (IMEP) of PCJI exhibits lower sensitivity to spark timing (ST), through the co-optimization of λ and ST, the trade-off between engine performance and NOx can be improved. |
| format | Article |
| id | doaj-art-3a6b88ceee164351a0b2e5e8e332b4aa |
| institution | OA Journals |
| issn | 2214-157X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Thermal Engineering |
| spelling | doaj-art-3a6b88ceee164351a0b2e5e8e332b4aa2025-08-20T02:13:40ZengElsevierCase Studies in Thermal Engineering2214-157X2025-06-017010612610.1016/j.csite.2025.106126General comparison of pre-chamber jet ignition and spark ignition on combustion and emission characteristics of a methanol direct injection engineHailiang Kou0Xiaodong An1Hao Duan2Xiaojun Yin3Ke Zeng4School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, PR ChinaZhengzhou University of Aeronautics, Zhengzhou, 450015, PR ChinaSchool of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, PR ChinaSchool of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, PR China; Corresponding author.School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, 710049, PR China; Corresponding author.Compared with spark ignition (SI), pre-chamber jet ignition (PCJI) can effectively accelerate the combustion and extend lean burn limit. In this paper, the effects of PCJI and SI on methanol direct injection engine were investigated experimentally. Combustion comparison shows that PCJI can effectively shorten the ignition delay period and combustion duration. Especially under lean conditions with an excess air ratio (λ) being 1.3, PCJI can shorten the combustion duration by 45 % compared with SI. Lean burn limits and emissions are also improved. The λ limit for lean burn in SI mode is 1.4, while in PCJI mode it extends to 1.5. Under the lean condition with λ being 1.5, the BSHC and BSCO emissions in PCJI mode are reduced by 42.7 % and 27.6 %. The indicated mean effective pressure (IMEP) of PCJI exhibits lower sensitivity to spark timing (ST), through the co-optimization of λ and ST, the trade-off between engine performance and NOx can be improved.http://www.sciencedirect.com/science/article/pii/S2214157X25003867Methanol enginePre-chamberDirect injectionHigh compression ratio |
| spellingShingle | Hailiang Kou Xiaodong An Hao Duan Xiaojun Yin Ke Zeng General comparison of pre-chamber jet ignition and spark ignition on combustion and emission characteristics of a methanol direct injection engine Case Studies in Thermal Engineering Methanol engine Pre-chamber Direct injection High compression ratio |
| title | General comparison of pre-chamber jet ignition and spark ignition on combustion and emission characteristics of a methanol direct injection engine |
| title_full | General comparison of pre-chamber jet ignition and spark ignition on combustion and emission characteristics of a methanol direct injection engine |
| title_fullStr | General comparison of pre-chamber jet ignition and spark ignition on combustion and emission characteristics of a methanol direct injection engine |
| title_full_unstemmed | General comparison of pre-chamber jet ignition and spark ignition on combustion and emission characteristics of a methanol direct injection engine |
| title_short | General comparison of pre-chamber jet ignition and spark ignition on combustion and emission characteristics of a methanol direct injection engine |
| title_sort | general comparison of pre chamber jet ignition and spark ignition on combustion and emission characteristics of a methanol direct injection engine |
| topic | Methanol engine Pre-chamber Direct injection High compression ratio |
| url | http://www.sciencedirect.com/science/article/pii/S2214157X25003867 |
| work_keys_str_mv | AT hailiangkou generalcomparisonofprechamberjetignitionandsparkignitiononcombustionandemissioncharacteristicsofamethanoldirectinjectionengine AT xiaodongan generalcomparisonofprechamberjetignitionandsparkignitiononcombustionandemissioncharacteristicsofamethanoldirectinjectionengine AT haoduan generalcomparisonofprechamberjetignitionandsparkignitiononcombustionandemissioncharacteristicsofamethanoldirectinjectionengine AT xiaojunyin generalcomparisonofprechamberjetignitionandsparkignitiononcombustionandemissioncharacteristicsofamethanoldirectinjectionengine AT kezeng generalcomparisonofprechamberjetignitionandsparkignitiononcombustionandemissioncharacteristicsofamethanoldirectinjectionengine |