National Repository of Grey Literature 7 records found  Search took 0.01 seconds. 
Study of the small water power plant which is situated in the middle and lower reach of river Morava
Dočkal, Jiří ; Malý, Jiří (referee) ; Matoušek, Antonín (advisor)
The present thesis deals with the description of the current state on the course of Morava river from small hydro Kromeriz after a small water plant Hodonin. Subsequently, I deal with the description of search of weir plants and weirs for the construction of small hydropower (especially their heads, structures and, where appropriate, possible adaptation). Then I deal with completion new hydroelectric plants on this founded weir plants and weirs which are in section between the small hydroelectric power Kromeriz and Lanžhot city on the Czech Republic side (Brodské on the Slovak Republic side). In this work is mainly focus on the calculation of installed performance in individual locations (and also the calculation of achievable performance in these locations), machinery design (for the use of selected sets from Hydrohrom company) and the way the configuration of the power switch. If it is in those places, řeším even more possibilities of this construction is splavnění view of the river, especially in the field of Hodonin - Lanžhot. In addition, deals with the design of line side cubicle of each switch to local distribution networks (draft routes). In the last phase deals with the size of the production in each generation, calculations of costs of constructing these plants, approximate calculation of the production (of the flows of 2007) and time of return on your investment in the construction.
High Speed Turbine with Non-Uniform Cascade
Stareček, Jakub ; Drábková, Sylva (referee) ; Veselý, Jindřich (referee) ; Haluza, Miloslav (advisor)
This doctoral thesis is focused on hydraulic design of axial turbine by CFD and FEM analyses. The results are runners with nonuniform cascades. Nonuniform runners consist of blades with different axial positions, blades with different pitch angles in runner or indifferent blades. Each runner is designed with respect to 3D printing by FDM or SLS technology and hydraulic measuring. The analyses of the excitation frequencies, modal analysis, shape of the turbine operating range, maximal efficiency, output parameters and cavitation properties are emphasized.
Project of Small Water Power Station
Hlavica, Tomáš ; Novotný, Jan (referee) ; Matoušek, Antonín (advisor)
Hydroelectric power plants in the Czech Republic are the most important component of electricity production from renewable sources. A hydroelectric power plant in our country produces 3.9% of the total energy, which is almost half of the 8.2% of all renewable sources. Regarding the large hydroelectric power plants and those already in the Czech Republic is very likely to accrue more, because in this sphere we need to focus on smaller hydroelectric power plants, up to 10MW included. The task of this project is to design just such a small hydropower plants (SHP), which could be an interesting investment for people nearby of larger rivers. In the first part of my project is to choose a suitable area for construction of SHP. In the second part is ma task identify and propose solutions water and hydropower
High Speed Turbine with Non-Uniform Cascade
Stareček, Jakub ; Drábková, Sylva (referee) ; Veselý, Jindřich (referee) ; Haluza, Miloslav (advisor)
This doctoral thesis is focused on hydraulic design of axial turbine by CFD and FEM analyses. The results are runners with nonuniform cascades. Nonuniform runners consist of blades with different axial positions, blades with different pitch angles in runner or indifferent blades. Each runner is designed with respect to 3D printing by FDM or SLS technology and hydraulic measuring. The analyses of the excitation frequencies, modal analysis, shape of the turbine operating range, maximal efficiency, output parameters and cavitation properties are emphasized.
Project of Small Water Power Station
Hlavica, Tomáš ; Novotný, Jan (referee) ; Matoušek, Antonín (advisor)
Hydroelectric power plants in the Czech Republic are the most important component of electricity production from renewable sources. A hydroelectric power plant in our country produces 3.9% of the total energy, which is almost half of the 8.2% of all renewable sources. Regarding the large hydroelectric power plants and those already in the Czech Republic is very likely to accrue more, because in this sphere we need to focus on smaller hydroelectric power plants, up to 10MW included. The task of this project is to design just such a small hydropower plants (SHP), which could be an interesting investment for people nearby of larger rivers. In the first part of my project is to choose a suitable area for construction of SHP. In the second part is ma task identify and propose solutions water and hydropower
Study of the small water power plant which is situated in the middle and lower reach of river Morava
Dočkal, Jiří ; Malý, Jiří (referee) ; Matoušek, Antonín (advisor)
The present thesis deals with the description of the current state on the course of Morava river from small hydro Kromeriz after a small water plant Hodonin. Subsequently, I deal with the description of search of weir plants and weirs for the construction of small hydropower (especially their heads, structures and, where appropriate, possible adaptation). Then I deal with completion new hydroelectric plants on this founded weir plants and weirs which are in section between the small hydroelectric power Kromeriz and Lanžhot city on the Czech Republic side (Brodské on the Slovak Republic side). In this work is mainly focus on the calculation of installed performance in individual locations (and also the calculation of achievable performance in these locations), machinery design (for the use of selected sets from Hydrohrom company) and the way the configuration of the power switch. If it is in those places, řeším even more possibilities of this construction is splavnění view of the river, especially in the field of Hodonin - Lanžhot. In addition, deals with the design of line side cubicle of each switch to local distribution networks (draft routes). In the last phase deals with the size of the production in each generation, calculations of costs of constructing these plants, approximate calculation of the production (of the flows of 2007) and time of return on your investment in the construction.
Fish communities in streams PLA Jizera Mountains
JANOŠÍK, David
Flows in the PLA in the Jizera Mountains are unique for the occurrence of indigenous populations of brown trout (Salmo truta morpha fario) and several protected and endangered species of fish and cyclostomes. V 2 Mid-20th The situation for the acidification of the aquatic environment. As a result, stocks have almost disappeared fathead minnow (phoxinus phoxinus) and other indigenous fish. Another reason was the disruption ichtyocenosis fragmentation high flows associated with the construction of barriers to cross small hydro (MVE) and various degrees. Giant Mountains in the PLA was the main objective of checking the functionality of fish ladders, monitoring of fish migration and permeability. Furthermore Ichthyological surveys were conducted pre-selected sections of streams to determine the composition of the ichthyofauna. Was monitored and the success of reintroduction of certain species of fish, particularly fathead minnow in its original location. Were collected and physical and chemical properties of water.

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