Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Utilization of CFD tools in the design process of a Francis turbine
Download
index.pdf
Date
2010
Author
Okyay, Gizem
Metadata
Show full item record
Item Usage Stats
403
views
204
downloads
Cite This
Francis type turbines are commonly used in hydropower generation. Main components of the turbine are spiral case, stay vanes, guide vanes, turbine runner and the draft tube. The dimensions of these parts are dependent mainly on the design discharge, head and the speed of the rotor of the generators. In this study, a methodology is developed for parametric optimization by incorporating Matlab codes developed and commercial Computational Fluid Dynamics (CFD) codes into the design process. The design process starts with the selection of initial dimensions from experience curves, iterates to improve the overall hydraulic efficiency and obtain the detailed description of the final geometry for manufacturing with complete visualization of the computed flow field. A Francis turbine designed by the procedure developed has been manufactured and installed for energy production.
Subject Keywords
Hydraulic engineering.
URI
http://etd.lib.metu.edu.tr/upload/12612452/index.pdf
https://hdl.handle.net/11511/19973
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Investigation of waterhammer problems in the penstocks of small hydropower plants
Çalamak, Melih; Bozkuş, Zafer; Department of Civil Engineering (2010)
Waterhammer is an unsteady hydraulic problem which is commonly found in closed conduits of hydropower plants, water distribution networks and liquid pipeline systems. Due to either a malfunction of the system or inadequate operation conditions, pipeline may collapse or burst erratically resulting in substantial damages, and human losses in some cases. In this thesis, time dependent flow situations in the penstocks of small hydropower plants are investigated. A software, HAMMER, that utilizes method of chara...
Hydraulic characteristics of tyrolean weirs having steel racks and circular-perforated entry
Şahiner, Halit; Göğüş, Mustafa; Department of Civil Engineering (2012)
Tyrolean type water-intake structures are commonly used on mountain rivers to supply water to hydropower stations. The amount of water to be diverted from the main channel is the major concern in these kind of structures and should not be less than the design discharge. In this study a physical model of a Tyrolean type water-intake structure was built at the laboratory and the diverted flow from the main channel through the intake structure having steel racks and perforated plates of different types were me...
Evaluation of the efficiency increment potential for francis turbines using CFD analysis
Özcan, Arslan Ömür; Aksel, Mehmet Haluk; Department of Mechanical Engineering (2016)
Francis turbine is a widely used hydraulic turbine in hydropower plants. This thesis analyzes a Francis turbine using Computational Fluid Dynamics (CFD) analysis and offers an improved design in case of energy production. First the initial performance of the turbine is analyzed using CFD analysis, possible cavitation regions are evaluated and design point of the turbine is found using hill chart method and compared with the on-site efficiency measurement results. Then an optimization study is held to improv...
Discharge predictions using ann in sloping rectangular channels with free overfall
Öztürk, Hayrullah Uğraş; Öztürk, Hayrullah Uğraş; Department of Civil Engineering (2005)
In recent years, artificial neural networks (ANNs) have been applied to estimate in many areas of hydrology and hydraulic engineering. In this thesis, multilayered feedforward backpropagation algorithm was used to establish for the prediction of unit discharge q (m3/s/m) in a rectangular free overfall. Researchers̕ experimental data were used to train and validate the network with high reliability. First, an appropriate ANN model has been established by considering determination of hidden layer and node num...
Development of a computer software for hydraulic design of small hydropower facility
Alimoğlu, Emir; Yanmaz, A Melih; Bozkuş, Zafer; Department of Civil Engineering (2012)
Run-of-river type hydroelectrical power plants are the facilities that use only the available flow on the river without storing it to generate electrical energy. These kind of facilities are composed of structural components such as diversion weir, conveyance line, forebay, penstock and power house. In this thesis, a computer program called “MiniHEPP Hydraulic Design” is developed in order to perform the hydraulic design of run-of-river type hydropower plants. This program which runs under the Windows opera...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
G. Okyay, “Utilization of CFD tools in the design process of a Francis turbine,” M.S. - Master of Science, Middle East Technical University, 2010.