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Water wheels
Klezla, Vojtěch ; Štigler, Jaroslav (referee) ; Haluza, Miloslav (advisor)
Water wheels are the topic of this bachelor thesis, which is divided into three parts. The first one describes a history of water wheels. The second part is focused on different types of water wheels and basic part of water construction. In the last part is concept and calculation of overshot bucket water wheel and adjustment of the parameters of Poncelet water wheel.
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Flow in channels with open water level
Palička, Miroslav ; Štigler, Jaroslav (referee) ; Haluza, Miloslav (advisor)
This bacherol thesis deals with steady water flow, in open channels with different cross-sections. The main aim was mathematical derivation of relations for the most favorable water level, graphic representation of those relations and numerical confirmation of results. Practical use and evaluation of results are summarized in conclusion.
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The Operating Point of the Centrifugal Pump.
Konečná, Kateřina ; Haluza, Miloslav (referee) ; Štigler, Jaroslav (advisor)
Target of diploma thesis The Operating Point of the Centrifugal Pump was create program for analyze system of pumps, it would be an effective instrument at projection these systems. Program is divided into two parts: system characteristic and performance characteristic. Subject of this thesis is create pumps database, enter performance characteristics and succeeding working with them. Program enable regulation pump with change speed and cooperation two pumps, work in parallel or series. The result of program is project system of pumps on enter parameters with more economy work.
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Fluid flow in open chanels
Netopilík, Jan ; Haluza, Miloslav (referee) ; Štigler, Jaroslav (advisor)
Water has been, is and will be an integral and crucial part of everyday life of all people. Since ancient times people have been transporting water by channels not only for irrigation. The aim of this thesis is to get acquainted with the theory of its behavior in artificial canals. Then show one of the ways how to solve a channel that has a zero bottom slope.
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The Different Kinds of the Sewage Delivery
Vosáhlo, David ; Haluza, Miloslav (referee) ; Štigler, Jaroslav (advisor)
The aim of this bachelor’s thesis is presenting the possibilities of different kinds of the sewage delivery. It is described a division and a brief overview of these types. Furthermore their main parts, function and using in practise are introduced. Pumps and their main components are depicted in the pictures or simple schemes.
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Design of a micro waterpower turbines for low head and low dicharge
Macek, Libor ; Fic, Miloslav (referee) ; Štigler, Jaroslav (advisor)
This diploma thesis discusses the issue of finding type of water turbine for very low heads and low discharges, which could be operated as mobile micro hydropower plant in island mode. Thesis deals with summary of appropriate choices of water turbine for needs of micro hydropower plant. Essential part of diploma thesis deals with design of optimized waterwheel. Waterwheel was chosen because commercial high-speed turbines have low efficiency for low heads. Waterwheel was manufactured and measured in laboratories of Fluid engineering. Measurement output was discharge and efficiency characteristic of turbine. The price calculation was made after manufacture.
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Numerical model of air valve
Luňák, Pavel ; Štigler, Jaroslav (referee) ; Himr, Daniel (advisor)
This diploma thesis deals the formation of water hammer in pipes and the suppress the nega-tive effects especially for the use of protective devices (surge tank, air chamber, air valve and other). The special attention is paid to the use of the air valve, for which it was developed mathematical model. The solution is based on the use of numerical methods Lax-Wendroff with boundary conditions for the air valve.The numerical results are confronted with the ex-periment in conclusion.
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