Numerical Investigation of the Effects of Engine Speed on Performance and Combustion Characteristics on a Converted Spark-Ignition Natural Gas Engine
In this study, the effects of different engine speed values on performance and combustion characteristics were investigated by converting a diesel engine to a spark-ignition engine using natural gas. In numerical analysis, G-equation combustion model, reduced methane chemical kinetic mechanism that...
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| Format: | Article |
| Language: | English |
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Gazi University
2022-09-01
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| Series: | Gazi Üniversitesi Fen Bilimleri Dergisi |
| Subjects: | |
| Online Access: | https://dergipark.org.tr/tr/pub/gujsc/issue/72673/1094175 |
| _version_ | 1797374691312140288 |
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| author | Fatih AKTA |
| author_facet | Fatih AKTA |
| author_sort | Fatih AKTA |
| collection | DOAJ |
| description | In this study, the effects of different engine speed values on performance and combustion characteristics were investigated by converting a diesel engine to a spark-ignition engine using natural gas. In numerical analysis, G-equation combustion model, reduced methane chemical kinetic mechanism that represent natural gas consisting of 29 types and 171 equations, and RANS k-e turbulence model were used. Analyzes were performed at full load, 17.5:1 compression ratio, constant ignition timing, and 6 different engine speeds. In order to examine only the effect of speed, the initial value, boundary conditions and spark plug ignition time were considered constant. While engine power and fuel consumption increased with increasing engine speed, engine efficiency decreased. In addition, increasing engine speed also increased the ignition delay time and combustion duration, and the flame front reached the squish zone later. |
| first_indexed | 2024-03-08T19:08:27Z |
| format | Article |
| id | doaj.art-32b96b20b3aa4daa91bce54a5f97cca7 |
| institution | Directory Open Access Journal |
| issn | 2147-9526 |
| language | English |
| last_indexed | 2024-03-08T19:08:27Z |
| publishDate | 2022-09-01 |
| publisher | Gazi University |
| record_format | Article |
| series | Gazi Üniversitesi Fen Bilimleri Dergisi |
| spelling | doaj.art-32b96b20b3aa4daa91bce54a5f97cca72023-12-27T21:06:43ZengGazi UniversityGazi Üniversitesi Fen Bilimleri Dergisi2147-95262022-09-0110361362610.29109/gujsc.1094175Numerical Investigation of the Effects of Engine Speed on Performance and Combustion Characteristics on a Converted Spark-Ignition Natural Gas EngineFatih AKTA0https://orcid.org/0000-0002-1594-5002GAZİ ÜNİVERSİTESİIn this study, the effects of different engine speed values on performance and combustion characteristics were investigated by converting a diesel engine to a spark-ignition engine using natural gas. In numerical analysis, G-equation combustion model, reduced methane chemical kinetic mechanism that represent natural gas consisting of 29 types and 171 equations, and RANS k-e turbulence model were used. Analyzes were performed at full load, 17.5:1 compression ratio, constant ignition timing, and 6 different engine speeds. In order to examine only the effect of speed, the initial value, boundary conditions and spark plug ignition time were considered constant. While engine power and fuel consumption increased with increasing engine speed, engine efficiency decreased. In addition, increasing engine speed also increased the ignition delay time and combustion duration, and the flame front reached the squish zone later.https://dergipark.org.tr/tr/pub/gujsc/issue/72673/1094175performancenatural gasspark |
| spellingShingle | Fatih AKTA Numerical Investigation of the Effects of Engine Speed on Performance and Combustion Characteristics on a Converted Spark-Ignition Natural Gas Engine Gazi Üniversitesi Fen Bilimleri Dergisi performance natural gas spark |
| title | Numerical Investigation of the Effects of Engine Speed on Performance and Combustion Characteristics on a Converted Spark-Ignition Natural Gas Engine |
| title_full | Numerical Investigation of the Effects of Engine Speed on Performance and Combustion Characteristics on a Converted Spark-Ignition Natural Gas Engine |
| title_fullStr | Numerical Investigation of the Effects of Engine Speed on Performance and Combustion Characteristics on a Converted Spark-Ignition Natural Gas Engine |
| title_full_unstemmed | Numerical Investigation of the Effects of Engine Speed on Performance and Combustion Characteristics on a Converted Spark-Ignition Natural Gas Engine |
| title_short | Numerical Investigation of the Effects of Engine Speed on Performance and Combustion Characteristics on a Converted Spark-Ignition Natural Gas Engine |
| title_sort | numerical investigation of the effects of engine speed on performance and combustion characteristics on a converted spark ignition natural gas engine |
| topic | performance natural gas spark |
| url | https://dergipark.org.tr/tr/pub/gujsc/issue/72673/1094175 |
| work_keys_str_mv | AT fatihakta numericalinvestigationoftheeffectsofenginespeedonperformanceandcombustioncharacteristicsonaconvertedsparkignitionnaturalgasengine |