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Feasibility study of small hydro power plant on the river Papradnianka in the district of Povážská Bystrica
Barenčík, Ladislav ; Haluza,, Miloslav (referee) ; Šulc, Jan (advisor)
The main purpose of this bachelor's thesis is the design of conceptual solution of a small hydroelectric power plant on the river Papradnianka in the Prúdy area and a feasibility assessment of this project. Hydrological data and a selection of the most appropriate type of power plant are revaluated in the first part of this bachelor's thesis. A selection of appropriate technology and individual parts of small hydroelectric power plant are described in the following part. Economic return of this project is assessed in the last part. According to the results of this bachelor's thesis, this project is technically realizable, but the return of investment is big due to current prices of energy .
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Controllability assessment of the Roudnice nad Labem sector weir box at extreme floods
Růžek, Patrik ; Haluza,, Miloslav (referee) ; Šulc, Jan (advisor)
This thesis deals with the determination of the load torque during flood conditions on the hydrostatic sectoral weir in Roudnice nad Labem. Problems are solved due to a glitch in the lowering sector. The aim of this study is to determine the resulting torque, of three selected states, which occurred at the water works. The issue was solved as a plane 2D problem using AutoCAD, in which were read the relevant data. It was also used ANSYS software, which modeled the flow of water over the weir to detect pressures acting on overflow face. All calculations are then counted in Microsoft Excel. Force balance is performed on the one-meter design.
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Destratification of Reservoirs
Sluše, Jan ; Kozubková, Milada (referee) ; Šulc, Jan (referee) ; Pochylý, František (advisor)
This doctoral thesis is focused on design of new equipment for aeration of water surface with low depth of water column. Aeration is one of ecological preventive methods to prevent growth of cyanobacteria. Increase of dissolved oxygen content in water mass leads to support of the growth of organisms which are disadvantaged by impossibility of movement in water mass and thus also to support biodiversity. Given biodiversity has a positive effect on water quality because it avoids the outbreak of one species of aquatic organism, in particular of cyanobacteria. Designed aeration equipment uses membrane formed by hollow fibre to transport oxygen into the water. When aeration dissolution of oxygen occurs directly on the membrane surface which prevents air leak in the form of bubbles. This type of aeration has low operating costs and high efficiency of input of the oxygen into the water. Distribution in the aquatic environment is ensured by special boat. This boat is moving on the water surface and the technology is installed on the upper deck. The aeration is carried out by an aeration module situated in the water. The movement of the boat is partially ensured by autonomous control.
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Influence of plan situating of weir in the prismatic channel on discharging capacity
Lukášek, Petr ; Haluza,, Miloslav (referee) ; Šulc, Jan (advisor)
This diploma thesis is focused on determination of plan situating influence of weir discharging capacity. The part of this work is a summary of the information about weirs, principally about determination of discharging capacity on normal weirs, plan deflected and plan radius weirs. Executed model research, which deals with determination of plan situating influence on discharging capacity plan deflected and plan radius weirs in comparison to normal weir, is evaluated in another part of this work. The research is also dealing with influence of aeration of the space under down surface of free jet and influence of downstream water level on discharging capacity. This work compares the results of executed research with available knowledge of other authors, who have dealt with determination of discharging capacity on weirs with different plan situating.
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Shaft spillway capacity depending on flow stages
Monsport, Jakub ; Jobánek, Stanislav (referee) ; Šulc, Jan (advisor)
The first part of this bachelor's thesis is drafted as a search. Summarizes information about spillways and in more detail focuses on shaft spillways and describes not only their construction but also flow stages in a funnel, shaft, elbow and at the beginning of the tunnel. The second part is practical and consists of the measurement of Q/h characteristics on the model of shaft spillway with some modifications.
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VD Vlachovice - concrete gravity dam
Juriga, Jan ; Šulc, Jan (referee) ; Zachoval, Zbyněk (advisor)
As a part of this bachelor thesis an alternative design of the concrete gravity dam VD Vlachovice was made, to the already design of the earth-fill dam. The design of the outlet works, intake and spillway were also carried out as a part of the study. The introduction of the thesis includes a description of the site and an evaluation of local conditions. The next part deals with the stability of the dam and the load-bearing capacity of the subsoil. Furthermore, the design of the outlet works, intake and spillway were made. A part of the thesis also deals with the transformation of flood by the water reservoir. Finally, drawings and simplified 3D model of the dam were created. The documents necessary for the creation of the work were provided by company AQUATIS a.s. with the permission of Povodí Morava, s.p.
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Influence of plan radius on discharging capacity of weir
Lukášek, Petr ; Haluza,, Miloslav (referee) ; Šulc, Jan (advisor)
This bachelor's thesis is focused on plan radius weirs. The part of this work is also summary of the information about weirs, principally about plan radius weirs. Executed model research, dealing with determination of influence of plan radius on discharging capacity of these weirs in comparison to straight weir, is evaluated in another part of this work. The research is also dealing with the effect of design of a spillway channel on capacity of the weir. This work compares the results of executed research with results of other authors, who are dealing with plan radius morning glory spillway.
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Hydraulic properties of siphon and direct flow swirl turbine
Hudec, Martin ; Šulc, Jan (referee) ; Veselý, Jindřich (referee) ; Habán, Vladimír (advisor)
Non-stationary processes are associated with the operation of water machines. They are important for their reliable and safe operation. Prediction and modeling of such states using a 1D mathematical model verified on a model in the laboratory is an advantage. The work is focused on the description of a pair of transient states that are related to siphon turbines and their operation. Determination of critical flow values for inducing a suction effect and, conversely, calculation of the minimum size of the flow coefficient for safe stopping. The experiments were performed on a laboratory model and compared with operational data from a small hydroelectric power plant Želina.
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