Please use this identifier to cite or link to this item:
https://doi.org/10.21256/zhaw-23112
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Zhang, Zh. | - |
dc.date.accessioned | 2021-09-13T08:38:57Z | - |
dc.date.available | 2021-09-13T08:38:57Z | - |
dc.date.issued | 2021-04-07 | - |
dc.identifier.issn | 1001-6058 | de_CH |
dc.identifier.issn | 1878-0342 | de_CH |
dc.identifier.uri | https://digitalcollection.zhaw.ch/handle/11475/23112 | - |
dc.description.abstract | To make the Kaplan turbine technology comparable to both the Pelton and the Francis turbine, the master equation for the Kaplan turbine has been established by analyses similar to that for the Francis turbine. The analysis begins with the descriptions of free vortex flows at the runner inlet and the swirl flow at the impeller exit. By considering the Euler equation for specific work and by further evaluating the most significant shock and swirling losses, the first and the second energy equations in the form of hydraulic efficiency were formulated. The master equation is then established by combining both energy equations. In addition, three design equations and a new design parameter are presented. The master equation relates the turbine hydromechanics to the geometrical design of both the runner and the guide-vane parameters. It enables the complete hydraulic characteristics of a given Kaplan turbine to be analytically and simply computed. A computation example demonstrates the functionality and applicability of the method. With the reconstructed master equation, the runaway speed of the Kaplan turbine and its dependence on the guide-vane setting can be easily and precisely computed. For bulb turbines with guide vanes directly ahead of the turbine runner in the same tube, all computations are also applicable using another equivalent control parameter. | de_CH |
dc.language.iso | en | de_CH |
dc.publisher | Springer | de_CH |
dc.relation.ispartof | Journal of Hydrodynamics | de_CH |
dc.rights | Licence according to publishing contract | de_CH |
dc.subject | Kaplan turbine | de_CH |
dc.subject | Master equation | de_CH |
dc.subject | Design equation | de_CH |
dc.subject | Runaway speed | de_CH |
dc.subject | Hydraulic efficiency | de_CH |
dc.subject | Shock loss | de_CH |
dc.subject | Swirling loss | de_CH |
dc.subject | Bulb turbine | de_CH |
dc.subject.ddc | 620: Ingenieurwesen | de_CH |
dc.title | Master equation, design equations and runaway speed of the Kaplan turbine | de_CH |
dc.type | Beitrag in wissenschaftlicher Zeitschrift | de_CH |
dcterms.type | Text | de_CH |
zhaw.departement | School of Engineering | de_CH |
zhaw.organisationalunit | Institut für Energiesysteme und Fluid-Engineering (IEFE) | de_CH |
dc.identifier.doi | 10.1007/s42241-021-0020-1 | de_CH |
dc.identifier.doi | 10.21256/zhaw-23112 | - |
zhaw.funding.eu | No | de_CH |
zhaw.issue | 2 | de_CH |
zhaw.originated.zhaw | Yes | de_CH |
zhaw.pages.end | 300 | de_CH |
zhaw.pages.start | 282 | de_CH |
zhaw.publication.status | acceptedVersion | de_CH |
zhaw.volume | 33 | de_CH |
zhaw.publication.review | Peer review (Publikation) | de_CH |
zhaw.webfeed | Erneuerbare Energien | de_CH |
zhaw.webfeed | Data Management & Visualisation | de_CH |
zhaw.author.additional | No | de_CH |
zhaw.display.portrait | Yes | de_CH |
Appears in collections: | Publikationen School of Engineering |
Files in This Item:
File | Description | Size | Format | |
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2021_Zhang_Master-Equation-Kaplan-Turbine.pdf | Accepted Version | 806.14 kB | Adobe PDF | View/Open |
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Zhang, Zh. (2021). Master equation, design equations and runaway speed of the Kaplan turbine. Journal of Hydrodynamics, 33(2), 282–300. https://doi.org/10.1007/s42241-021-0020-1
Zhang, Zh. (2021) ‘Master equation, design equations and runaway speed of the Kaplan turbine’, Journal of Hydrodynamics, 33(2), pp. 282–300. Available at: https://doi.org/10.1007/s42241-021-0020-1.
Zh. Zhang, “Master equation, design equations and runaway speed of the Kaplan turbine,” Journal of Hydrodynamics, vol. 33, no. 2, pp. 282–300, Apr. 2021, doi: 10.1007/s42241-021-0020-1.
ZHANG, Zh., 2021. Master equation, design equations and runaway speed of the Kaplan turbine. Journal of Hydrodynamics. 7 April 2021. Bd. 33, Nr. 2, S. 282–300. DOI 10.1007/s42241-021-0020-1
Zhang, Zh. 2021. “Master Equation, Design Equations and Runaway Speed of the Kaplan Turbine.” Journal of Hydrodynamics 33 (2): 282–300. https://doi.org/10.1007/s42241-021-0020-1.
Zhang, Zh. “Master Equation, Design Equations and Runaway Speed of the Kaplan Turbine.” Journal of Hydrodynamics, vol. 33, no. 2, Apr. 2021, pp. 282–300, https://doi.org/10.1007/s42241-021-0020-1.
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