This work deals with the design of a small hydro secured control system. The secured control system itself belongs to the Fault Tolerant Systems category. At first the requirements on small hydro control system are discussed. Then the introduction into the basics of Fault Tolerant System theory is given. The requirements on small hydro control system and basics of Fault Tolerant Systems are basis for specification of secured control system which design and construction is the main objective of this work.

The master’s thesis follows up the possibility of using renewable for making electric power. It detects conditions of further development in this discipline and external factors which are applied to business. It rates from economic view little hydroelectric, wind and photovoltaic power stations. In business plan it elaborates in detail prosecution of the little hydroelectric plants, which is at the end subjected to financial analysis and it’s decided if this business makes sense.

This thesis deals with revitalization of the selected part of river Drevnice. Main scopes of the work are proposals of fish passages through migration barriers. The work is conceived on four levels. The first of them is dealing with the general characteristics of selected segment and with description of objects on watercourse. The second level is dealing with revitalization, where the basic information about migration and efficiency of fishes are described. In this chapter basic distribution of fish ladders is included. In third part, which is the most comprehensive, I design a boulder fish ramp and bypass channel. The last chapter contains drawings documentation of watercourse Drevnice and my own proposed revitalization elements.

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.

This thesis deals with the river basin flood protection Loučka. The goal of the thesis is to assess the need of flood control measures supplement in the watershed. The first part deals with exploration of river basin, acquiring geographic factors and obtaining information about the topic, establishment and application of rainfall model used for solving the problem. The second part deals with improving of flood protection at critical selected places by using design of reservoir system with retention effect and by increasing river basin capacity. For basin schematisation was used ArcGIS program and the simulation of rainfall-runoff process was made by Hydrog program.

This master´s thesis deals with the possibilities of innovation process water treatment. Specifically, to explore the use of sodium water glass and nanoiron in removing heavy metals from raw water at the drinking water treatment. For the comparison was used traditionally used coagulant, particularly liquid aluminum sulfate. The introductory part deals with the possibility of modifying the surface water during the treatment process such water into potable water. This chapter is a description of the quality of raw water used, then the description of currently used separation processes. Furthermore, they are described and commonly used types of treatment plants. Conclusion The introductory section deals with traditional coagulants and form a suspension. Another part of this master´s thesis has been devoted to the possibilities of innovation in the treatment of raw waters as drinking water, describes the options and features of the use of water glass and nanoiron. The following section describes the experimental part of this thesis. It is followed by the experimental results. The last chapter summarizes the acquired knowledge and commented on the measured values of the experimental part. This work also shows several specific projects using innovative technologies presented.

The purpose of this diploma work is to predict the action of the swirl turbine in a siphonal configuration using the potential energy provided by the river Úpa near the city Jaroměř. The hydraulic predictions of the turbine impellor were based on calculation made using the CFD program Fluent. The measurement of the draft tube and the strength calculations of the turbine blade and spindle are based upon the theories, experiments and finally on the knowledge gained from the test models constructed. The results of this project can be used when considering the viability of a small hydraulic power plant.

In terms of needs of practice, material slicing is one of the first operations at manufacture or fabrication. During the slicing process different conventional and non-conventional methods are used. Among the basic non-conventional methods is water jet cutting of two types: Abrasive Water Jet cutting (AWJ) and Water Jet Machining (WJM). This method is used in the technological process also for cutting devices of unique shapes and diverse materials

High speed water jets have un-substitutable place in unconventional technologies in the machining of materials. Indeed its larger spreading is limited above all by its really high purchase price and also high costs of the operation. Certain possibility is represented by high-speed pulsating jets, which don’t put such a high pretension on arrangement of generating the pressure during the comparable operation. Probably the most effective method of the generating of pulsating water jets is ultrasonic modulation. This work could benefit to understanding spreading of pressure impulses between ultrasonic generator and output nozzle. Pulsating is solved by the numerical calculation using transfer matrix method.

Master's thesis, elaborated within Master's degree, submits a proposal of suitable technology for manufacturing “column foot“ part, which attaches filtration unit to the ground. Material is 6 mm thick sheet steel in accordance with ČSN 41 1375 norm. Run (/production batch) of the part is 4 000 pieces per year. On the basis of literary study about unconventional technologies for flat sheet metal production 3 technologies were suggested: plasma cutting, water jet cutting and laser cutting. These technologies were technologically and economically analyzed. At the end thesis evaluates whether purchase of respective machine would pay out for the firm or they should continue to buy parts from cooperation company.