| 000 | 02809nam a2200277 a 4500 | ||
|---|---|---|---|
| 001 | vtls000045755 | ||
| 003 | KUKTEM | ||
| 005 | 20251114204450.0 | ||
| 008 | 100513t2009 my ao f m 000 0 eng d | ||
| 020 | _aTHE0006322(Local) | ||
| 039 | 9 |
_a201905161250 _baida _c201107132014 _dVLOAD _c201005131110 _dida _y201005131037 _zida |
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| 040 | _aUMP | ||
| 090 | _aTJ788 .A34 2009 rs Bc. | ||
| 100 | 0 | _aMuhamad Akhbar Osman Md. Hashim | |
| 245 | 1 | 0 |
_aSimulation of gaseous fuel injector geometries of mult holes nozzle by using CNG engine / _cMuhamad Akhbar Osman Bin Md. Hashim |
| 246 | 3 |
_aSimulation of gaseous fuel injector geometries of mult holes nozzle by using CNG engine _h[electronic resource] |
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| 260 |
_aKuantan, Pahang : _bUMP, _c2009 |
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| 300 |
_axi, 61 p. : _bill. (some col.) ; _c30 cm. + _e1 computer disc |
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| 502 | _aProject paper (Bachelor of Mechanical Engineering with Automotive Engineering) -- Universiti Malaysia Pahang - 2009 | ||
| 504 | _aBibliography : p. 49-51 | ||
| 520 | 3 | _aCompressed natural gas (CNG) is the most preferred for fossil fuel substitution. This project is to study simulation of gaseous fuel injector geometries of multi-hole nozzle by using CNG engine. Three main components are focused on this paper. First, the relation between engine speed and injector pressure in achieving stoichiometric air-fuel mixture is investigated. Second, relation between valve lift and injector pressure in obtaining stoichiometric air-fuel mixture is investigated. Lastly the quality of air-fuel mixture in engine cylinder is investigated. Stoichiometric air-fuel mixture leads to good drivability, high combustion efficiency, and avoid internal damage on engine parts. In order to achieve stoichiometric air-fuel mixture, the different engine speeds and valve lift are considered and investigated. Therefore, Computational Fluid Dynamics (CFD) method using COSMOS FloWork simulation software is used for this purpose. The simulation of gaseous fuel injector geometries of multi-hole nozzle by using CNG engine is conducted in 1.78mm, 3.55mm, 5.33mm and 7.1mm intake valve lift, and also engine speeds at 2000 RPM, 3000 RPM, 4000 RPM and 5000 RPM. The results are shown; by increasing the engine speed, the injector pressure increases at different valve lift. Valve lift increment will increase the injector pressure for different engine speeds but the injector pressure is constant for valve lift increment from 75 percent to 100 percent. In the best trend air-fuel mixing result, the injected gas fuel and intake air has been mixed spread evenly in combustion chamber. | |
| 650 | 0 | _aInternal combustion engines | |
| 650 | 0 | _aValves | |
| 650 | 0 | _aCompressed natural gas | |
| 999 |
_aVIRTUA40 _c2521 _d2527 |
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| 999 | _aVTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5040*5200*6500*6501*6502*9992 | ||