Development of a direct fuel injector for a two-stroke gasoline engine
A prototype pressure-swirl injector was designed to suit an arbitrary two�stroke, gasoline direct injection engine requirement. A commercial computational fluid dynamics software FLUENT was used as a tool to analyze the performance of the conceptual design. A prototype injector was fabricated on...
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my-uthm-ep.73402022-07-21T04:06:44Z Development of a direct fuel injector for a two-stroke gasoline engine 2007-02 Mohd Ali, Mas Fawzi TL Motor vehicles. Aeronautics. Astronautics TL1-484 Motor vehicles. Cycles A prototype pressure-swirl injector was designed to suit an arbitrary two�stroke, gasoline direct injection engine requirement. A commercial computational fluid dynamics software FLUENT was used as a tool to analyze the performance of the conceptual design. A prototype injector was fabricated once the conceptual design met the requirements. The fabricated prototype injector was then subjected to a series of specification tests such as leak test, static flow rate test and discharge coefficient test. A dedicated test rig was set up to evaluate the performance of the prototype injector. The spray images at specified time frame were illuminated by Nd:Y AG laser sheet and captured using a high-speed digital camera. The stored images were analyzed to give data of spray angle, and droplet Sauter mean diameter at fuel-air pressure differential ranging from 1.0 to 5.0 MPa, with a step size of 1.0 MPa. From the tests, the prototype injector static flow rate, half spray cone angle and the droplet Sauter mean diameter at fuel injection pressure of 5.0 MPa was found to comply with the outlined requirements, which are approximately 475 cc/min, 32° and 19 11m respectively. Finally, the experimental data was compared with the calculated data. It was found that the measured data of static flow rate, discharge coefficient, and droplet Sauter mean diameter were higher than the computed data at fuel-air pressure differential between 1.0 and 3.0 MPa. In contrast, the calculated initial spray angle was overestimated by 3% at all tested fuel-air pressure differentials. 2007-02 Thesis http://eprints.uthm.edu.my/7340/ http://eprints.uthm.edu.my/7340/1/24p%20MAS%20FAWZI%20MOHD%20ALI.pdf text en public mphil masters Universiti Teknologi Malaysia Fakulti Kejuruteraan Mekanikal |
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Universiti Tun Hussein Onn Malaysia |
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UTHM Institutional Repository |
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English |
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TL Motor vehicles Aeronautics Astronautics TL Motor vehicles Aeronautics Astronautics |
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TL Motor vehicles Aeronautics Astronautics TL Motor vehicles Aeronautics Astronautics Mohd Ali, Mas Fawzi Development of a direct fuel injector for a two-stroke gasoline engine |
description |
A prototype pressure-swirl injector was designed to suit an arbitrary two�stroke, gasoline direct injection engine requirement. A commercial computational
fluid dynamics software FLUENT was used as a tool to analyze the performance of
the conceptual design. A prototype injector was fabricated once the conceptual
design met the requirements. The fabricated prototype injector was then subjected to
a series of specification tests such as leak test, static flow rate test and discharge
coefficient test. A dedicated test rig was set up to evaluate the performance of the
prototype injector. The spray images at specified time frame were illuminated by
Nd:Y AG laser sheet and captured using a high-speed digital camera. The stored
images were analyzed to give data of spray angle, and droplet Sauter mean diameter
at fuel-air pressure differential ranging from 1.0 to 5.0 MPa, with a step size of 1.0
MPa. From the tests, the prototype injector static flow rate, half spray cone angle
and the droplet Sauter mean diameter at fuel injection pressure of 5.0 MPa was found
to comply with the outlined requirements, which are approximately 475 cc/min, 32°
and 19 11m respectively. Finally, the experimental data was compared with the
calculated data. It was found that the measured data of static flow rate, discharge
coefficient, and droplet Sauter mean diameter were higher than the computed data at
fuel-air pressure differential between 1.0 and 3.0 MPa. In contrast, the calculated
initial spray angle was overestimated by 3% at all tested fuel-air pressure
differentials. |
format |
Thesis |
qualification_name |
Master of Philosophy (M.Phil.) |
qualification_level |
Master's degree |
author |
Mohd Ali, Mas Fawzi |
author_facet |
Mohd Ali, Mas Fawzi |
author_sort |
Mohd Ali, Mas Fawzi |
title |
Development of a direct fuel injector for a two-stroke gasoline engine |
title_short |
Development of a direct fuel injector for a two-stroke gasoline engine |
title_full |
Development of a direct fuel injector for a two-stroke gasoline engine |
title_fullStr |
Development of a direct fuel injector for a two-stroke gasoline engine |
title_full_unstemmed |
Development of a direct fuel injector for a two-stroke gasoline engine |
title_sort |
development of a direct fuel injector for a two-stroke gasoline engine |
granting_institution |
Universiti Teknologi Malaysia |
granting_department |
Fakulti Kejuruteraan Mekanikal |
publishDate |
2007 |
url |
http://eprints.uthm.edu.my/7340/1/24p%20MAS%20FAWZI%20MOHD%20ALI.pdf |
_version_ |
1747831134708826112 |