Determination Of Vortex Formation At Temenggor Tnb Hydropower Station
The power generated by Temenggor Hydropower station is only 80% of the station’s full capacity. The reason behind this reduced power generation, is due to the formation of free surface vortices at the hydraulic intake. This study is focuses on numerical simulation using ANSYS fluent software. The mo...
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| Format: | Monograph |
| Language: | English |
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Universiti Sains Malaysia
2021
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| Online Access: | http://eprints.usm.my/55886/ http://eprints.usm.my/55886/1/Determination%20Of%20Vortex%20Formation%20At%20Temenggor%20Tnb%20Hydropower%20Station.pdf |
| _version_ | 1848883206162481152 |
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| author | Jaafar, Muhamad Aliff Ikmal |
| author_facet | Jaafar, Muhamad Aliff Ikmal |
| author_sort | Jaafar, Muhamad Aliff Ikmal |
| building | USM Institutional Repository |
| collection | Online Access |
| description | The power generated by Temenggor Hydropower station is only 80% of the station’s full capacity. The reason behind this reduced power generation, is due to the formation of free surface vortices at the hydraulic intake. This study is focuses on numerical simulation using ANSYS fluent software. The model was built using SolidWorks and the data were obtained from the dam’s blueprints and LIDAR scanner (Light Detection and Ranging) for the intake topology. The mesh sensitivity analysis was then carried out by testing different element sizes. This study was carried out by simulating the dam water flow using k-epsilon turbulence model and volume of fraction (VOF) at different water level in order to observe the vortices formation at hydraulic intake. The results validation is then carried out by comparing the simulation outlet discharge with the real discharge. The analysis was carried out by comparing the energy level, outlet flow rate and total loss in penstock with respects to different water level. The findings from the simulations and results are, the vortices disrupt the intake flow but with increasing water level the effect reduced. Penstock 4 are affected the most due to vortices consistently form at any water level. |
| first_indexed | 2025-11-15T18:47:07Z |
| format | Monograph |
| id | usm-55886 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:47:07Z |
| publishDate | 2021 |
| publisher | Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-558862022-12-03T08:24:03Z http://eprints.usm.my/55886/ Determination Of Vortex Formation At Temenggor Tnb Hydropower Station Jaafar, Muhamad Aliff Ikmal T Technology TJ1-1570 Mechanical engineering and machinery The power generated by Temenggor Hydropower station is only 80% of the station’s full capacity. The reason behind this reduced power generation, is due to the formation of free surface vortices at the hydraulic intake. This study is focuses on numerical simulation using ANSYS fluent software. The model was built using SolidWorks and the data were obtained from the dam’s blueprints and LIDAR scanner (Light Detection and Ranging) for the intake topology. The mesh sensitivity analysis was then carried out by testing different element sizes. This study was carried out by simulating the dam water flow using k-epsilon turbulence model and volume of fraction (VOF) at different water level in order to observe the vortices formation at hydraulic intake. The results validation is then carried out by comparing the simulation outlet discharge with the real discharge. The analysis was carried out by comparing the energy level, outlet flow rate and total loss in penstock with respects to different water level. The findings from the simulations and results are, the vortices disrupt the intake flow but with increasing water level the effect reduced. Penstock 4 are affected the most due to vortices consistently form at any water level. Universiti Sains Malaysia 2021-10-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/55886/1/Determination%20Of%20Vortex%20Formation%20At%20Temenggor%20Tnb%20Hydropower%20Station.pdf Jaafar, Muhamad Aliff Ikmal (2021) Determination Of Vortex Formation At Temenggor Tnb Hydropower Station. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Mekanik. (Submitted) |
| spellingShingle | T Technology TJ1-1570 Mechanical engineering and machinery Jaafar, Muhamad Aliff Ikmal Determination Of Vortex Formation At Temenggor Tnb Hydropower Station |
| title | Determination Of Vortex Formation At Temenggor Tnb Hydropower Station |
| title_full | Determination Of Vortex Formation At Temenggor Tnb Hydropower Station |
| title_fullStr | Determination Of Vortex Formation At Temenggor Tnb Hydropower Station |
| title_full_unstemmed | Determination Of Vortex Formation At Temenggor Tnb Hydropower Station |
| title_short | Determination Of Vortex Formation At Temenggor Tnb Hydropower Station |
| title_sort | determination of vortex formation at temenggor tnb hydropower station |
| topic | T Technology TJ1-1570 Mechanical engineering and machinery |
| url | http://eprints.usm.my/55886/ http://eprints.usm.my/55886/1/Determination%20Of%20Vortex%20Formation%20At%20Temenggor%20Tnb%20Hydropower%20Station.pdf |