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Cavitation in engineering praktice
Kianička, Martin ; Hudec, Martin (referee) ; Pochylý, František (advisor)
This diploma thesis contains three parts. The first part is a background research which deals with notions such as cavitation and cyanobacteria. It also contains current phase in the use of cavitation. The second part deals with design, composition and constructional solution of hydraulic circuit on the riverboat. The third part deals with experimental certification of the cavitation effect on the cyanobacteria in the water. Design of the riverboat with the hydraulic circuit including the circuit itself and the cavitation tube was created in SolidWorks program, calculations, it’s processing and graphs were created in Microsoft Excel.
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Experimental testing of hydrocyclone
Juráš, Filip ; Hudec, Martin (referee) ; Rudolf, Pavel (advisor)
This bachelor thesis is focused on experimental testing of hydrocyclone. The work is divided into two parts. The first part describes basic parts of hydrocyclone, dimensions, and operating parameters of the tested hydrocyclone and principles of its work. The second, practical part, describes the general preparation of the experiment, which started with searching for a suitable material and continued to the filter device used for particle separation.
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Cavitation erosion
Lecnar, Lukáš ; Hudec, Martin (referee) ; Rudolf, Pavel (advisor)
This bachelor’s thesis focuses on cavitation erosion and it is divided into two main parts. The first part is devoted to the search of cavitation erosion focusing on erosion mechanisms. In the first chapter of this search is briefly described cavitation process and different types of cavitation are listed here. Hydrodynamic cavitation which is the key type for this bachelor’s thesis is described in the following chapter. The final and the most extensive chapter is devoted to cavitation erosion of solids which is largely associated with the effects of the mechanical action of the fluid. The second part is devoted to the experimental study of cavitation erosion of samples. The goal was to document the experiment which was carried out in order to gain knowledge about the material removal by cavitation erosion.
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Adaptation of historical technical facility on the small hydroelectric power
Čermáková, Klára ; Sluše, Jan (referee) ; Hudec, Martin (advisor)
Small hydroelectric power stations are the topic of this bachelor thesis which can be divided into three parts. The first one describes a history of utilising water energy, elementary types of hydropower projects, and classification of hydroelectric power stations. The second part is focused on small hydroelectric power stations. Finally the acquired knowledge is used in the last part describing the proposal of an adaptation of the water mill in Lomy to a small hydroelectric power station.
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Adaptation of the water mill
Dobšáková, Lenka ; Uttendorfský, Petr (referee) ; Hudec, Martin (advisor)
This bachelor’s thesis is about adaptation of the water mill Cacovice. The first part is a description of the history of water mills and mill history in Cacovice. The second part deals with small hydroelectric power station, their functions and distribution. The third part describes the technical part of the small hydroelectric power station Cacovice and the fourth part is a proposal for a new Kaplan turbine, which could replace the existing Francis turbine.
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Adaptation of the water mill
Vašek, Lubomír ; Žák, Radim (referee) ; Hudec, Martin (advisor)
This bachelor thesis deals with adaptation of a water mill in Liboš to a small hydro power plant. Basic principles, functions and significance of each device are summarized and explained there. The thesis should provide a coherent description of SHPP to a reader who is unfamiliar with the topic and initiate him into the problems partly.
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Pressure drop determination of the charging pump in the water level oscillation dependence
Sůkal, Jaroslav ; Hudec, Martin (referee) ; Fialová, Simona (advisor)
The bachelor thesis deals with basic equations of hydromechanics. The derivation process of Euler equation for hydrodynamics and Bernoulli equation is outlined. It also includes the analysis of the real liquids flow as well as the friction losses. The oscilatory motion in between two joint tanks is described. The phenomenon is solved by Bernoulli equation with an unsteady term. A part of the thesis treats the derivation process of the equation of the equilibrum surface deflection description and its simplified resolving. A model problem of the phenomenon is put forward.
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