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The renewal of the weir and hydropower plant Hlubočky
Hajda, Jindřich ; Rainer, Vít (referee) ; Říha, Jaromír (advisor)
This bachelor thesis deals with the design of weir and small hydroelectric power plant in lokality Hlubočky-Dukla. This thesis is dividend into two parts: a text and drawings. The text part is further dividend into three main chapters – technical report, hydro-technical and hydro-energy calculations and photos. Technical report deals with description of the site and the propřed technical solution. The individual step sof the design described by hydro-calculations. Photo documentation illustrates the current state.
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Visualisation of hydraulic structures
Urbanec, Luděk ; Duchan, David (referee) ; Dráb, Aleš (advisor)
The aim is to implement the process for creating realistic visuals (including animations) for a small hydroelectric power plant Litomerice. This thesis is the creation of spatial models based on existing drawings. Using these models will be developed with an emphasis on rendering realistic scenes created. An important part of the work output will also be focused primarily on the animation feature demonstrations of technological equipment, handling and maintenance work on the water. A key outcome will be the documentation process of spatial models, realistic rendering and animation.
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The turbine regulation of the small hydro-powerplants
Horký, Jiljí ; Dobrovolný, Martin (referee) ; Stareček, Jakub (advisor)
This bachelor thesis deals with the regulation of water turbines in small-hydro power plants. The first chapter presents the basic theory of this issue. In the next following two chapters, the characteristics of individual types of turbines, their construction and construction of control mechanisms are introduced. With the help of velocity triangles is shown, how the flow conditions are changing during the work of control mechanisms and what influence the control has on the hydraulic machine.
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The computation of draft tobe of the turbine for giving parameters
Žák, František ; Veselý, Jindřich (referee) ; Haluza, Miloslav (advisor)
This diploma thesis describes design of a new shape of the draft tube for small hydro Katovice with maintaining built dimension. First part of this thesis is devoted to the formulation of the problem, description of basic function of the draft tube, its efficiency and other formulas. In the second part of this thesis the analysis is made for original design supported by CFD calculation. Furthermore a new design of the draft tube is made with comparison of original draft tube.
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Contradictions analysis of small water power Ostravice.
Kupčík, Roman ; Skoták, Aleš (referee) ; Haluza, Miloslav (advisor)
The main subject of the diploma thesis „Contradiction analysis of small water power Ostravice“ is solution of reduced output of small water power plant on the river Ostravice near the town Vratimov. Power plant equippment is axial flow Kaplans turbine RA – 3,5 – 0 1000 with runner diametr 1000 mm. Low output is caused by draft tube. New draft tube is designed in this masters thesis. For hydraulic layout was used CFD software Fluent. The aim of this work is finding of optimal shape which leads to increasing of power from current 30 kW to projected 55 kW.
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Technical design of an alternative to the small hydropower plant Ejpovice
Mitrega, Stanislav ; Jobánek, Stanislav (referee) ; Šulc, Jan (advisor)
The main purpose of this bachelor’s thesis is a new design of a small hydroelectric power plant Ejpovice with non-pressure and pressure derivation. The non-pressure part of a waterway includes design of a weir, culvert and an inlet channel. The pressure part of a waterway includes an intake object and an original tunnel. The design review includes two variants of a waterway. In the first variant water is running straight through the tunnel. The second variant is considering with a glass reinforced pipe that will be installed in the tunnel so the tunnel won’t be flooded. At first the thesis analyses all the sources for the preparation of a design and discribes an area of interest. Below the thesis presents a design of all the new building objects and technological equipments. Detailed restoration of the tunnel is also described. In conclusion of the thesis, there are calculations of a power generation and an economic analysis of both variants. The payback period of the second variant is significantly longer than the period of the first variant although an alternative design doesn’t require a comlicated restoration of the tunnel. On the basis of this fact I recommend to implement the first design.
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Feasibility study of the small hydropower station
Patočka, Filip ; Neumayer,, Oldřich (referee) ; Dráb, Aleš (advisor)
The aim of the present master’s thesis is to explore the feasibility of small hydropower plant for cur-rent hydro energetic potential of the weir on Ohře river, located in the city of Terezín in Ústecký re-gion, Czech Republic. The target of the thesis itself was to design minimally two variants of constructional and technological part. Due to requirements related to maintaining of all functions of the weir construction was decided to design small hydropower plant completely under the water surface, with flap mounted to the roof of the hydropower plant. Part of the thesis was also an economical assessment of designed hydropower project.
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Water turbines and them use
Machát, Pavel ; Sloupenský, Zdeněk (referee) ; Himr, Daniel (advisor)
This bachelor´s thesis deals with the problems of water turbines. It contains basic division of water turbines, description of their oparations and possibilities of their utilizations. Further this thesis focuses on description of the three most used turbines i.e. Francis´s, Kaplan´s and Pelton´s turbines. As one component of this work there are also mentioned essential relations required for selection of proper type of turbine in dependency on speed, slope and flow rate.
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Flow structure and energy transformation in an elbow draft tube
Štefan, David ; Skoták, Aleš (referee) ; Rudolf, Pavel (advisor)
Draft tube is very important part of hydraulic turbines. Only optimum work together with turbine can bring highest performance of this machine set. Hence it is necessary to deal with character of flow in the draft tube for different operating conditions. Efficiency of the draft tube depends on many phenomena of flow. Observing these phenomena and finding their relation with energetic transformation in the draft tube is a suitable tool to judge quality of draft tube performance. Incorrect design of the draft tube can sometimes cause lower efficiency of whole machine set. The goal of this thesis is finding the main reasons causing draft tube efficiency drop for given operating conditions.
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