Analysis of Brush Seal Interaction with Steam Turbine Rotor-Shafts
High-speed turbines are a major source for power production. They utilize high pressure and temperature fluid flow. Sealing of these machines to decrease the flow losses has been a major engineering challenge since the inception of steam turbines. From an engineering viewpoint, seals are used to in...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IMS Vogosca
2024-01-01
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| Series: | Science, Engineering and Technology |
| Subjects: | |
| Online Access: | https://setjournal.com/SET/article/view/108 |
| _version_ | 1827372988241018880 |
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| author | Nonso Omenife Dawood Desai Regan Dunne |
| author_facet | Nonso Omenife Dawood Desai Regan Dunne |
| author_sort | Nonso Omenife |
| collection | DOAJ |
| description |
High-speed turbines are a major source for power production. They utilize high pressure and temperature fluid flow. Sealing of these machines to decrease the flow losses has been a major engineering challenge since the inception of steam turbines. From an engineering viewpoint, seals are used to introduce friction in the fluid flow path. This reduces the flow leakage. Improved seal performance offers substantial opportunities for turbine performance. Reduced leakages in steam turbines can lead to greater efficiency and power output. They can also allow tighter control of turbine secondary flows. However, sealing these machines is a major challenge. There are several seal locations on a steam turbine that have significant performance derivatives. These include the interstage shaft packing, the end packing, and the bucket tip seals. Brush seals are ideal for these locations because they can reduce the flow losses. This study analysed the efficiency of the steam turbine by using ANSYS APDL. It assessed the leakage performance of the brush seal for different cases and geometries. It also used porous medium modelling of the bristle pack to provide insight for designers. The outputs of interest were the rotor-shaft temperature and the efficiency of the entire turbine with the brush seal.
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| first_indexed | 2024-03-08T11:09:28Z |
| format | Article |
| id | doaj.art-86b36039279f45a48748c251dea742eb |
| institution | Directory Open Access Journal |
| issn | 2831-1043 2744-2527 |
| language | English |
| last_indexed | 2024-03-08T11:09:28Z |
| publishDate | 2024-01-01 |
| publisher | IMS Vogosca |
| record_format | Article |
| series | Science, Engineering and Technology |
| spelling | doaj.art-86b36039279f45a48748c251dea742eb2024-01-26T14:05:13ZengIMS VogoscaScience, Engineering and Technology2831-10432744-25272024-01-014110.54327/set2024/v4.i1.108Analysis of Brush Seal Interaction with Steam Turbine Rotor-ShaftsNonso Omenife0https://orcid.org/0000-0002-9913-621XDawood Desai1https://orcid.org/0000-0002-5608-4528Regan Dunne2https://orcid.org/0000-0002-7971-2988Department of Mechanical and Mechatronics Engineering. Tshwane University of Technology, Pretoria South Africa. / Department of Mechanical / Production Engineering, Nnamdi Azikiwe University. Awka, Anambra state Nigeria.Department of Mechanical and Mechatronics Engineering. Tshwane University of Technology, Pretoria South Africa.Department of Mechanical and Mechatronics Engineering. Tshwane University of Technology, Pretoria South Africa. High-speed turbines are a major source for power production. They utilize high pressure and temperature fluid flow. Sealing of these machines to decrease the flow losses has been a major engineering challenge since the inception of steam turbines. From an engineering viewpoint, seals are used to introduce friction in the fluid flow path. This reduces the flow leakage. Improved seal performance offers substantial opportunities for turbine performance. Reduced leakages in steam turbines can lead to greater efficiency and power output. They can also allow tighter control of turbine secondary flows. However, sealing these machines is a major challenge. There are several seal locations on a steam turbine that have significant performance derivatives. These include the interstage shaft packing, the end packing, and the bucket tip seals. Brush seals are ideal for these locations because they can reduce the flow losses. This study analysed the efficiency of the steam turbine by using ANSYS APDL. It assessed the leakage performance of the brush seal for different cases and geometries. It also used porous medium modelling of the bristle pack to provide insight for designers. The outputs of interest were the rotor-shaft temperature and the efficiency of the entire turbine with the brush seal. https://setjournal.com/SET/article/view/108Brush sealsteam turbineAnsyssealing |
| spellingShingle | Nonso Omenife Dawood Desai Regan Dunne Analysis of Brush Seal Interaction with Steam Turbine Rotor-Shafts Science, Engineering and Technology Brush seal steam turbine Ansys sealing |
| title | Analysis of Brush Seal Interaction with Steam Turbine Rotor-Shafts |
| title_full | Analysis of Brush Seal Interaction with Steam Turbine Rotor-Shafts |
| title_fullStr | Analysis of Brush Seal Interaction with Steam Turbine Rotor-Shafts |
| title_full_unstemmed | Analysis of Brush Seal Interaction with Steam Turbine Rotor-Shafts |
| title_short | Analysis of Brush Seal Interaction with Steam Turbine Rotor-Shafts |
| title_sort | analysis of brush seal interaction with steam turbine rotor shafts |
| topic | Brush seal steam turbine Ansys sealing |
| url | https://setjournal.com/SET/article/view/108 |
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