Effect of Two-Stage Fuel Injection Parameters on NOx Reduction Characteristics in a DI Diesel Engine
The aim of this study was to confirm the effects of two-stage combustion on the combustion and NOx reduction characteristics of a four cylinder direct injection diesel engine. In order to analyze the combustion and emission characteristics, various injection parameters, such as injection quantity, i...
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| Format: | Article |
| Language: | English |
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MDPI AG
2011-11-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/4/11/2049/ |
| _version_ | 1828372161984724992 |
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| author | Sungwook Park Chang Sik Lee Donggon Lee Kyusoo Jeong |
| author_facet | Sungwook Park Chang Sik Lee Donggon Lee Kyusoo Jeong |
| author_sort | Sungwook Park |
| collection | DOAJ |
| description | The aim of this study was to confirm the effects of two-stage combustion on the combustion and NOx reduction characteristics of a four cylinder direct injection diesel engine. In order to analyze the combustion and emission characteristics, various injection parameters, such as injection quantity, injection timing and injection pressure were used under constant engine speed and engine load. In addition, the experimental results of two-stage combustion are compared to the single injection when injection timing is 5° BTDC. The experimental results showed that NOx emissions were significantly reduced when applying two-stage combustion. In particular, an injection strategy when the first and second injections have a same quantity, the results showed the maximum reduction of NOx emissions in this experiment. The NOx emissions were also reduced when the timing of the first injection was advanced. However, NOx emissions indicated almost similar concentration regardless of first injection timings when the first injection timing was earlier than 50° BTDC. In the case of soot emissions were slightly increased compare to the single injection cases at tested conditions. |
| first_indexed | 2024-04-14T06:59:21Z |
| format | Article |
| id | doaj.art-a54c33238b614a999c1fc3abbf07ea95 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T06:59:21Z |
| publishDate | 2011-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-a54c33238b614a999c1fc3abbf07ea952022-12-22T02:06:48ZengMDPI AGEnergies1996-10732011-11-014112049206010.3390/en4112049Effect of Two-Stage Fuel Injection Parameters on NOx Reduction Characteristics in a DI Diesel EngineSungwook ParkChang Sik LeeDonggon LeeKyusoo JeongThe aim of this study was to confirm the effects of two-stage combustion on the combustion and NOx reduction characteristics of a four cylinder direct injection diesel engine. In order to analyze the combustion and emission characteristics, various injection parameters, such as injection quantity, injection timing and injection pressure were used under constant engine speed and engine load. In addition, the experimental results of two-stage combustion are compared to the single injection when injection timing is 5° BTDC. The experimental results showed that NOx emissions were significantly reduced when applying two-stage combustion. In particular, an injection strategy when the first and second injections have a same quantity, the results showed the maximum reduction of NOx emissions in this experiment. The NOx emissions were also reduced when the timing of the first injection was advanced. However, NOx emissions indicated almost similar concentration regardless of first injection timings when the first injection timing was earlier than 50° BTDC. In the case of soot emissions were slightly increased compare to the single injection cases at tested conditions.http://www.mdpi.com/1996-1073/4/11/2049/two-stage combustioninjection strategycombustion characteristicsNOx reduction characteristicssoot emissions |
| spellingShingle | Sungwook Park Chang Sik Lee Donggon Lee Kyusoo Jeong Effect of Two-Stage Fuel Injection Parameters on NOx Reduction Characteristics in a DI Diesel Engine Energies two-stage combustion injection strategy combustion characteristics NOx reduction characteristics soot emissions |
| title | Effect of Two-Stage Fuel Injection Parameters on NOx Reduction Characteristics in a DI Diesel Engine |
| title_full | Effect of Two-Stage Fuel Injection Parameters on NOx Reduction Characteristics in a DI Diesel Engine |
| title_fullStr | Effect of Two-Stage Fuel Injection Parameters on NOx Reduction Characteristics in a DI Diesel Engine |
| title_full_unstemmed | Effect of Two-Stage Fuel Injection Parameters on NOx Reduction Characteristics in a DI Diesel Engine |
| title_short | Effect of Two-Stage Fuel Injection Parameters on NOx Reduction Characteristics in a DI Diesel Engine |
| title_sort | effect of two stage fuel injection parameters on nox reduction characteristics in a di diesel engine |
| topic | two-stage combustion injection strategy combustion characteristics NOx reduction characteristics soot emissions |
| url | http://www.mdpi.com/1996-1073/4/11/2049/ |
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