Excitation of the runner in horizontal three nozzles Pelton turbine
Result description
Dynamic characteristic of the hydraulic and mechanical solution for any Pelton turbine depends on a lot of various effects. The paper presents basic steps of the hydraulic design of the horizontal three nozzles Pelton turbine as well as an analysis of the bucket excitation in dependence on the pitch angle of the nozzles. The numerical modelling of the energy transfer from the jet to the runner was simulated based on application of Euler turbine equation. The evaluation of the numerical flow simulation was applied for the determination of following nozzles pitch angle. The basic condition applied for the solution is that the water, which flows from the previous nozzle, has not any significant contact with the water flowing from the following nozzle. Inthat way the optimised pitch angle between following buckets has been determined. A static pressure distribution over the turbine bucket by numerical simulation has been carried out. The excitation of the bucket was evaluated by a numeric
Keywords
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Excitation of the runner in horizontal three nozzles Pelton turbine
Original language description
Dynamic characteristic of the hydraulic and mechanical solution for any Pelton turbine depends on a lot of various effects. The paper presents basic steps of the hydraulic design of the horizontal three nozzles Pelton turbine as well as an analysis of the bucket excitation in dependence on the pitch angle of the nozzles. The numerical modelling of the energy transfer from the jet to the runner was simulated based on application of Euler turbine equation. The evaluation of the numerical flow simulation was applied for the determination of following nozzles pitch angle. The basic condition applied for the solution is that the water, which flows from the previous nozzle, has not any significant contact with the water flowing from the following nozzle. Inthat way the optimised pitch angle between following buckets has been determined. A static pressure distribution over the turbine bucket by numerical simulation has been carried out. The excitation of the bucket was evaluated by a numeric
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
JE - Non-nuclear power engineering, energy consumption and utilization
OECD FORD branch
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Result continuities
Project
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Basic information
Result type
O - Miscellaneous
CEP
JE - Non-nuclear power engineering, energy consumption and utilization
Year of implementation
2013