Optimization of the Trailing Edge Inclination of Wet Steam Turbine Stator Blade Towards the Losses Reduction
Thermodynamic losses and blade erosion occur due to formation of wetness in the low-pressure steam turbine. By changing the trailing edge angle of turbine blade can reduce blade erosion and condensation losses. This research optimized the best of the trailing edge rotation to improve the turbine...
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| Veröffentlicht in: | Experimental techniques (Westport, Conn.) Conn.), 2023-02, Vol.47 (1), p.269-279 |
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| creator | Hoseinzade, D. Lakzian, E. Dykas, S. |
| description | Thermodynamic losses and blade erosion occur due to formation of wetness in the low-pressure steam turbine. By changing the trailing edge angle of turbine blade can reduce blade erosion and condensation losses. This research optimized the best of the trailing edge rotation to improve the turbine's operation at the low-pressure part of the steam turbines (thermodynamic losses and blade erosion) as passive method. In this paper, the integral of the number of droplets per volume (IND), the integral of the droplet average radius (IDR), the integral of wetness fraction (IWF), the integral of local entropy (ILE), and the integral of dynamic pressure (IDP) were considered as goals of optimization. The results introduce an optimal case (θ = − 0.84o counterclockwise) while improved IDR by 0.276%, increased IND by 0.0389%, improved IWF by 0.207%, reduced IDP by 0.054%, and increased ILE by 0.0074%. In addition, this optimization caused the erosion rate to be improved by 2.33% and the condensation losses to be decreased by 0.39%. |
| doi_str_mv | 10.1007/s40799-021-00534-5 |
| format | Article |
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By changing the trailing edge angle of turbine blade can reduce blade erosion and condensation losses. This research optimized the best of the trailing edge rotation to improve the turbine's operation at the low-pressure part of the steam turbines (thermodynamic losses and blade erosion) as passive method. In this paper, the integral of the number of droplets per volume (IND), the integral of the droplet average radius (IDR), the integral of wetness fraction (IWF), the integral of local entropy (ILE), and the integral of dynamic pressure (IDP) were considered as goals of optimization. The results introduce an optimal case (θ = − 0.84o counterclockwise) while improved IDR by 0.276%, increased IND by 0.0389%, improved IWF by 0.207%, reduced IDP by 0.054%, and increased ILE by 0.0074%. 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By changing the trailing edge angle of turbine blade can reduce blade erosion and condensation losses. This research optimized the best of the trailing edge rotation to improve the turbine's operation at the low-pressure part of the steam turbines (thermodynamic losses and blade erosion) as passive method. In this paper, the integral of the number of droplets per volume (IND), the integral of the droplet average radius (IDR), the integral of wetness fraction (IWF), the integral of local entropy (ILE), and the integral of dynamic pressure (IDP) were considered as goals of optimization. The results introduce an optimal case (θ = − 0.84o counterclockwise) while improved IDR by 0.276%, increased IND by 0.0389%, improved IWF by 0.207%, reduced IDP by 0.054%, and increased ILE by 0.0074%. In addition, this optimization caused the erosion rate to be improved by 2.33% and the condensation losses to be decreased by 0.39%.</description><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Droplets</subject><subject>Dynamic pressure</subject><subject>Erosion rates</subject><subject>Low pressure</subject><subject>Materials Science</subject><subject>Moisture content</subject><subject>Optimization</subject><subject>S.I.: Computations & Experiments on Dynamics of Complex Fluid & Structure</subject><subject>Stator blades</subject><subject>Steam turbines</subject><subject>Thermodynamics</subject><subject>Trailing edges</subject><subject>Turbine blades</subject><subject>Turbines</subject><subject>Wet steam</subject><issn>0732-8818</issn><issn>1747-1567</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kEtLw0AUhQdRsFb_gKtZuonOK7nJUkvVQkHQisthmrmpU_KoMwmiv95pIy5dXQ6c73DuIeSSs2vOGNwExaAoEiZ4wlgqVZIekQkHBQlPMzgmEwZSJHnO81NyFsKWMZ5yKCakftr1rnHfpnddS7uK9u9IV9642rUbOrcbpIu2jOLP8IY9fenRNHQ1-LVrMSrTd57e1cZGtvs03oZDzrILAQN9RjuUe_ycnFSmDnjxe6fk9X6-mj0my6eHxex2mZRSqD6xYJVdY8WFiDWFZAVAzqUAVlRSZUwJAcIaqFSeKlWaDFAiisxUZSagEHJKrsbcne8-Bgy9blwosa5Ni90QtADgGaQAKlrFaC19LOux0jvvGuO_NGd6P60ep9VxWn2YVqcRkiMUorndoNfbbvBtfOk_6gegI3u3</recordid><startdate>20230201</startdate><enddate>20230201</enddate><creator>Hoseinzade, D.</creator><creator>Lakzian, E.</creator><creator>Dykas, S.</creator><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><orcidid>https://orcid.org/0000-0002-7274-3554</orcidid></search><sort><creationdate>20230201</creationdate><title>Optimization of the Trailing Edge Inclination of Wet Steam Turbine Stator Blade Towards the Losses Reduction</title><author>Hoseinzade, D. ; Lakzian, E. ; Dykas, S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c324t-d7d4dbef1220152309778132709f346042272da7f48544ca67e3ee26afc627923</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry and Materials Science</topic><topic>Droplets</topic><topic>Dynamic pressure</topic><topic>Erosion rates</topic><topic>Low pressure</topic><topic>Materials Science</topic><topic>Moisture content</topic><topic>Optimization</topic><topic>S.I.: Computations & Experiments on Dynamics of Complex Fluid & Structure</topic><topic>Stator blades</topic><topic>Steam turbines</topic><topic>Thermodynamics</topic><topic>Trailing edges</topic><topic>Turbine blades</topic><topic>Turbines</topic><topic>Wet steam</topic><toplevel>online_resources</toplevel><creatorcontrib>Hoseinzade, D.</creatorcontrib><creatorcontrib>Lakzian, E.</creatorcontrib><creatorcontrib>Dykas, S.</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Experimental techniques (Westport, Conn.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hoseinzade, D.</au><au>Lakzian, E.</au><au>Dykas, S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optimization of the Trailing Edge Inclination of Wet Steam Turbine Stator Blade Towards the Losses Reduction</atitle><jtitle>Experimental techniques (Westport, Conn.)</jtitle><stitle>Exp Tech</stitle><date>2023-02-01</date><risdate>2023</risdate><volume>47</volume><issue>1</issue><spage>269</spage><epage>279</epage><pages>269-279</pages><issn>0732-8818</issn><eissn>1747-1567</eissn><abstract>Thermodynamic losses and blade erosion occur due to formation of wetness in the low-pressure steam turbine. By changing the trailing edge angle of turbine blade can reduce blade erosion and condensation losses. This research optimized the best of the trailing edge rotation to improve the turbine's operation at the low-pressure part of the steam turbines (thermodynamic losses and blade erosion) as passive method. In this paper, the integral of the number of droplets per volume (IND), the integral of the droplet average radius (IDR), the integral of wetness fraction (IWF), the integral of local entropy (ILE), and the integral of dynamic pressure (IDP) were considered as goals of optimization. The results introduce an optimal case (θ = − 0.84o counterclockwise) while improved IDR by 0.276%, increased IND by 0.0389%, improved IWF by 0.207%, reduced IDP by 0.054%, and increased ILE by 0.0074%. In addition, this optimization caused the erosion rate to be improved by 2.33% and the condensation losses to be decreased by 0.39%.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s40799-021-00534-5</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0002-7274-3554</orcidid></addata></record> |
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| source | Springer Nature - Complete Springer Journals |
| subjects | Characterization and Evaluation of Materials Chemistry and Materials Science Droplets Dynamic pressure Erosion rates Low pressure Materials Science Moisture content Optimization S.I.: Computations & Experiments on Dynamics of Complex Fluid & Structure Stator blades Steam turbines Thermodynamics Trailing edges Turbine blades Turbines Wet steam |
| title | Optimization of the Trailing Edge Inclination of Wet Steam Turbine Stator Blade Towards the Losses Reduction |
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