Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and Gasoline
The results of experiments performed by gasoline and natural gas fuels in a single cylinder research engine were evaluated in this study. The main objective of this study is to compare exhaust gas emissions, efficiency, and burn durations for both fuels in stoichiometric and lean mixture. At the sam...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-11-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/12/23/4432 |
| _version_ | 1798034610145198080 |
|---|---|
| author | Hüseyin Emre Doğan Osman Akın Kutlar Majid Javadzadehkalkhoran Abdurrahman Demirci |
| author_facet | Hüseyin Emre Doğan Osman Akın Kutlar Majid Javadzadehkalkhoran Abdurrahman Demirci |
| author_sort | Hüseyin Emre Doğan |
| collection | DOAJ |
| description | The results of experiments performed by gasoline and natural gas fuels in a single cylinder research engine were evaluated in this study. The main objective of this study is to compare exhaust gas emissions, efficiency, and burn durations for both fuels in stoichiometric and lean mixture. At the same time, cycle to cycle variation in these operating conditions should not exceed an acceptable value. In the ultra-lean mixture, gasoline fuel exceeded this determined limit before Compressed Natural Gas (CNG). Therefore, the reduction in NO was restricted by cyclic variations. In combustion analysis, although the burn duration of the gasoline in stoichiometric conditions was shorter than CNG, this situation reversed in favor of CNG in the ultra-lean mixtures. Contrary to some studies in the literature, the spark advance and ignition delay for CNG were the same or shorter than gasoline in this study. The primary reasons for this change are the high compression ratio and the different combustion chamber geometry. The increase in turbulence intensity has different effects on CNG and gasoline. As a result, it has been observed that NO emissions can meet the limits without a loss of efficiency for this engine operated with CNG under the ultra-lean mixture. |
| first_indexed | 2024-04-11T20:45:32Z |
| format | Article |
| id | doaj.art-c0297f3230d34c3eae922c8b36f137d8 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T20:45:32Z |
| publishDate | 2019-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-c0297f3230d34c3eae922c8b36f137d82022-12-22T04:04:02ZengMDPI AGEnergies1996-10732019-11-011223443210.3390/en12234432en12234432Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and GasolineHüseyin Emre Doğan0Osman Akın Kutlar1Majid Javadzadehkalkhoran2Abdurrahman Demirci3Graduate School of Science, Engineering and Technology, Istanbul Technical University, Istanbul 34469, TurkeyFaculty of Mechanical Engineering, Istanbul Technical University, Istanbul 34437, TurkeyGraduate School of Science, Engineering and Technology, Istanbul Technical University, Istanbul 34469, TurkeyMechanical Engineering Department, Karamanoğlu Mehmetbey University, Karaman 70200, TurkeyThe results of experiments performed by gasoline and natural gas fuels in a single cylinder research engine were evaluated in this study. The main objective of this study is to compare exhaust gas emissions, efficiency, and burn durations for both fuels in stoichiometric and lean mixture. At the same time, cycle to cycle variation in these operating conditions should not exceed an acceptable value. In the ultra-lean mixture, gasoline fuel exceeded this determined limit before Compressed Natural Gas (CNG). Therefore, the reduction in NO was restricted by cyclic variations. In combustion analysis, although the burn duration of the gasoline in stoichiometric conditions was shorter than CNG, this situation reversed in favor of CNG in the ultra-lean mixtures. Contrary to some studies in the literature, the spark advance and ignition delay for CNG were the same or shorter than gasoline in this study. The primary reasons for this change are the high compression ratio and the different combustion chamber geometry. The increase in turbulence intensity has different effects on CNG and gasoline. As a result, it has been observed that NO emissions can meet the limits without a loss of efficiency for this engine operated with CNG under the ultra-lean mixture.https://www.mdpi.com/1996-1073/12/23/4432natural gaslean burnnitrogen oxide emissioncyclic variationsburn duration |
| spellingShingle | Hüseyin Emre Doğan Osman Akın Kutlar Majid Javadzadehkalkhoran Abdurrahman Demirci Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and Gasoline Energies natural gas lean burn nitrogen oxide emission cyclic variations burn duration |
| title | Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and Gasoline |
| title_full | Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and Gasoline |
| title_fullStr | Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and Gasoline |
| title_full_unstemmed | Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and Gasoline |
| title_short | Investigation of Burn Duration and NO Emission in Lean Mixture with CNG and Gasoline |
| title_sort | investigation of burn duration and no emission in lean mixture with cng and gasoline |
| topic | natural gas lean burn nitrogen oxide emission cyclic variations burn duration |
| url | https://www.mdpi.com/1996-1073/12/23/4432 |
| work_keys_str_mv | AT huseyinemredogan investigationofburndurationandnoemissioninleanmixturewithcngandgasoline AT osmanakınkutlar investigationofburndurationandnoemissioninleanmixturewithcngandgasoline AT majidjavadzadehkalkhoran investigationofburndurationandnoemissioninleanmixturewithcngandgasoline AT abdurrahmandemirci investigationofburndurationandnoemissioninleanmixturewithcngandgasoline |