NOx Reduction in Diesel-Hydrogen Engines Using Different Strategies of Ammonia Injection
In order to reduce NO<sub>x</sub> emissions in internal combustion engines, the present work analyzes a measurement which consists of injecting ammonia directly into the combustion chamber. A commercial compression ignition engine fueled with a hydrogen-diesel blend was studied numerical...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-04-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/12/7/1255 |
| _version_ | 1798037712642506752 |
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| author | M. I. Lamas C. G. Rodriguez |
| author_facet | M. I. Lamas C. G. Rodriguez |
| author_sort | M. I. Lamas |
| collection | DOAJ |
| description | In order to reduce NO<sub>x</sub> emissions in internal combustion engines, the present work analyzes a measurement which consists of injecting ammonia directly into the combustion chamber. A commercial compression ignition engine fueled with a hydrogen-diesel blend was studied numerically. It was verified that the flow rate shape in which the ammonia was injected, particularly rectangular, triangular, or parabolic, as well as the injection duration had an important influence on NO<sub>x</sub> reduction. A 11.4% improvement in NO<sub>x</sub> reduction, corresponding to an overall reduction of 78.2% in NO<sub>x</sub>, was found for parabolic injection shape and 1º injection duration. The effect on carbon dioxide, carbon monoxide, and hydrocarbon emissions, as well as brake-specific consumption, was negligible. |
| first_indexed | 2024-04-11T21:30:17Z |
| format | Article |
| id | doaj.art-6285b247a55c4e5aba3a6e8a40689fb4 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T21:30:17Z |
| publishDate | 2019-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-6285b247a55c4e5aba3a6e8a40689fb42022-12-22T04:02:01ZengMDPI AGEnergies1996-10732019-04-01127125510.3390/en12071255en12071255NOx Reduction in Diesel-Hydrogen Engines Using Different Strategies of Ammonia InjectionM. I. Lamas0C. G. Rodriguez1Nautical Sciences and Marine Engineering Department, Universidade da Coruña, 15403 Ferrol, SpainNorplan Engineering S.L., 15570 Naron, SpainIn order to reduce NO<sub>x</sub> emissions in internal combustion engines, the present work analyzes a measurement which consists of injecting ammonia directly into the combustion chamber. A commercial compression ignition engine fueled with a hydrogen-diesel blend was studied numerically. It was verified that the flow rate shape in which the ammonia was injected, particularly rectangular, triangular, or parabolic, as well as the injection duration had an important influence on NO<sub>x</sub> reduction. A 11.4% improvement in NO<sub>x</sub> reduction, corresponding to an overall reduction of 78.2% in NO<sub>x</sub>, was found for parabolic injection shape and 1º injection duration. The effect on carbon dioxide, carbon monoxide, and hydrocarbon emissions, as well as brake-specific consumption, was negligible.https://www.mdpi.com/1996-1073/12/7/1255CFDNO<sub>x</sub>hydrogenammoniaengine |
| spellingShingle | M. I. Lamas C. G. Rodriguez NOx Reduction in Diesel-Hydrogen Engines Using Different Strategies of Ammonia Injection Energies CFD NO<sub>x</sub> hydrogen ammonia engine |
| title | NOx Reduction in Diesel-Hydrogen Engines Using Different Strategies of Ammonia Injection |
| title_full | NOx Reduction in Diesel-Hydrogen Engines Using Different Strategies of Ammonia Injection |
| title_fullStr | NOx Reduction in Diesel-Hydrogen Engines Using Different Strategies of Ammonia Injection |
| title_full_unstemmed | NOx Reduction in Diesel-Hydrogen Engines Using Different Strategies of Ammonia Injection |
| title_short | NOx Reduction in Diesel-Hydrogen Engines Using Different Strategies of Ammonia Injection |
| title_sort | nox reduction in diesel hydrogen engines using different strategies of ammonia injection |
| topic | CFD NO<sub>x</sub> hydrogen ammonia engine |
| url | https://www.mdpi.com/1996-1073/12/7/1255 |
| work_keys_str_mv | AT milamas noxreductionindieselhydrogenenginesusingdifferentstrategiesofammoniainjection AT cgrodriguez noxreductionindieselhydrogenenginesusingdifferentstrategiesofammoniainjection |