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The pump for the transport of fluids from great depths
Dobrovolný, Martin ; Haluza, Miloslav (referee) ; Pochylý, František (advisor)
In this Bachelor's thesis are included the basic information about dividing pumps. The division of the pumps is carried out according to standard ČSN 11 0000 and according to the specific speed of the pumps. There is a description of conventional designs of vertical hydrodynamic pumps and their use. The advantages and disadvantages of pumps used in boreholes are evaluated. The last chapter describes the construction of new hybrid pumping system. Also its advantages over existing pumps are described as well as its potential future use.
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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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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.
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The swirl turbine design for small water power Hovězí.
Oliva, Štěpán ; Neumayer, Oldřich (referee) ; Haluza, Miloslav (advisor)
The aim of this work was to develop a proposal regarding hydro-energy potential of small flows of water through the city „Hovězí near Vsetín“. The available water energy was used for running a Swirl Turbine featuring a siphon arrangement. This new concept makes use of a modified Kaplan Turbine, operating at small water heads. It operates also at higher revolutions and has higher discharge.
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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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The Operating Point of the Centrifugal Pump.
Maléř, Pavel ; Haluza, Miloslav (referee) ; Štigler, Jaroslav (advisor)
The diploma thesis has a target to create a computer program that will serve as help for an evaluation of the system of pumps (The Operating Point of the Centrifugal Pump). The computer program is intended above all designers, but it will find its using in the sphere of education. The main computer program has two partial programs: System characteristic and Performance characteristic. The main point of this diploma thesis is create partial computer program: system characteristic. Other target is creating the main program and finding The Operating Point of the Centrifugal Pump. Other parameters are power efficiency, flow, specific energy for pump or pumps. These parameters are important for correct and economical proposal.
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Mathematical model of circuit in laboratory VUT FSI OFI.
Klapal, Tomáš ; Haluza, Miloslav (referee) ; Habán, Vladimír (advisor)
This diploma thesis deals with project and experimental verification of mathematical model of experimental circuit for measuring turbine in laboratory of Kaplan Department of Fluids Engineering FME BUT in Brno. Pressure and flow characteristics were modeled based on data measured on general-purpose experimental circuit. Possibilities of the circuit control, mainly by by-pass, were also taken into account. Characteristic curves should serve for preliminery design of the test circuit set up for the turbine model measurements.
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Modification of pump for turbine regime
Jahn, Jan ; Veselý, Jindřich (referee) ; Haluza, Miloslav (advisor)
Hydraulic design of a hydrodynamic machine is designed to achieve a high value of energy transformation efficiency. Pumps and turbines have some different typical features in hydraulic design. With the aid of computational fluid dynamics, adjustments of the hydraulic parts of a standard centrifugal pump are assessed with the aim to increase hydraulic efficiency of the pump running as turbine. The impeller, volute casing and added draft tube are discussed.
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