The best compression ratio of modified piston for compressed natural gas(CNG)usage
Compression ratio can be defined as the pressure different between top dead center(TDC)and bottom dead center(BDC)of the piston in the combustion chamber.Compression ratio takes importance element to determine the power of the engine. Therefore,the objective of this study to determine the best compr...
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| Format: | Undergraduates Project Papers |
| Language: | English |
| Published: |
2009
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/5149/ http://umpir.ump.edu.my/id/eprint/5149/1/IZAR_FARHAN_BIN_NOR_KHIRI.PDF |
| _version_ | 1848817545675538432 |
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| author | Izar Farhan, Nor Khiri |
| author_facet | Izar Farhan, Nor Khiri |
| author_sort | Izar Farhan, Nor Khiri |
| building | UMP Institutional Repository |
| collection | Online Access |
| description | Compression ratio can be defined as the pressure different between top dead center(TDC)and bottom dead center(BDC)of the piston in the combustion chamber.Compression ratio takes importance element to determine the power of the engine. Therefore,the objective of this study to determine the best compression ratio of modified piston for compressed natural gas(CNG)usage.The original engine is single cylinder four-stroke diesel engine.Compression ratio for this diesel engine is 20.28:1.The original piston of this engine is bore a bowl on the piston head to get certain compression ratio. Therefore,Computational Fluid Dynamics(CFD)method using FLUENT simulation software was used for this purpose.Model of combustion chamber with modified piston construct by using GAMBIT software,than export the model to FLUENT for dynamics analysis.The maximum pressure and maximum temperature in the combustion chamber model determined.Base on the simulation result,the highest pressure before the spark plug spark the flame is 15.5:1 of compression ratio.Meaning that,the best compression ratio of modified piston for compressed natural gas is 15.5:1. |
| first_indexed | 2025-11-15T01:23:28Z |
| format | Undergraduates Project Papers |
| id | ump-5149 |
| institution | Universiti Malaysia Pahang |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T01:23:28Z |
| publishDate | 2009 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | ump-51492022-02-11T08:45:07Z http://umpir.ump.edu.my/id/eprint/5149/ The best compression ratio of modified piston for compressed natural gas(CNG)usage Izar Farhan, Nor Khiri TJ Mechanical engineering and machinery Compression ratio can be defined as the pressure different between top dead center(TDC)and bottom dead center(BDC)of the piston in the combustion chamber.Compression ratio takes importance element to determine the power of the engine. Therefore,the objective of this study to determine the best compression ratio of modified piston for compressed natural gas(CNG)usage.The original engine is single cylinder four-stroke diesel engine.Compression ratio for this diesel engine is 20.28:1.The original piston of this engine is bore a bowl on the piston head to get certain compression ratio. Therefore,Computational Fluid Dynamics(CFD)method using FLUENT simulation software was used for this purpose.Model of combustion chamber with modified piston construct by using GAMBIT software,than export the model to FLUENT for dynamics analysis.The maximum pressure and maximum temperature in the combustion chamber model determined.Base on the simulation result,the highest pressure before the spark plug spark the flame is 15.5:1 of compression ratio.Meaning that,the best compression ratio of modified piston for compressed natural gas is 15.5:1. 2009-11 Undergraduates Project Papers NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/5149/1/IZAR_FARHAN_BIN_NOR_KHIRI.PDF Izar Farhan, Nor Khiri (2009) The best compression ratio of modified piston for compressed natural gas(CNG)usage. Faculty of Mechanical Engineering , Universiti Malaysia Pahang. |
| spellingShingle | TJ Mechanical engineering and machinery Izar Farhan, Nor Khiri The best compression ratio of modified piston for compressed natural gas(CNG)usage |
| title | The best compression ratio of modified piston for compressed natural gas(CNG)usage |
| title_full | The best compression ratio of modified piston for compressed natural gas(CNG)usage |
| title_fullStr | The best compression ratio of modified piston for compressed natural gas(CNG)usage |
| title_full_unstemmed | The best compression ratio of modified piston for compressed natural gas(CNG)usage |
| title_short | The best compression ratio of modified piston for compressed natural gas(CNG)usage |
| title_sort | best compression ratio of modified piston for compressed natural gas(cng)usage |
| topic | TJ Mechanical engineering and machinery |
| url | http://umpir.ump.edu.my/id/eprint/5149/ http://umpir.ump.edu.my/id/eprint/5149/1/IZAR_FARHAN_BIN_NOR_KHIRI.PDF |