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Check valve
Nehybová, Petra ; Závorka, Dalibor (referee) ; Klas, Roman (advisor)
In this Master thesis are mentioned the most used constructions of non-return valves. Further consist of operation principles, fields of application, properties and diffi-culties connected to non-return valves. Motion plug of check valve in liquid is described based on CFD Software simulation.
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The dynamic characteristics of check valve
Pavlík, Václav ; Dokoupil, Pavel (referee) ; Habán, Vladimír (advisor)
This master´s thesis provides an overview of all designs of check valves, their usage and typical features. Main purpose of this work is to clear up the phenomenon of check valve slam and the other problems that occur during transients. The check valve slam was measured at the test rig in the hydraulic laboratory. For unsteady flow evaluation after pump shut down was used Gibson method. The dynamic characteristic was possible to create by results from this method. It was achieved without impact of the speed of sound in the fluid. This work also contains 2D transient CFD calculations, which was used for evaluation of the hydrodynamic torque acting on the hinge pin. This approach provides an option to calculate wide range of cases at the expense of not entirely exact geometry. The main contribution of the theoretical study at the beginning of this thesis is its entireness. It might give an important clue when right valve is selecting. For good choice of valve might be helpful to use dynamic characteristics in this thesis presented. Mentioned characteristics were created by new way and its background is in measurements and simplified CFD calculations.
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Determination of the working range and efficiency of the water hammer pump
Růžička, Jakub ; Himr,, Daniel (referee) ; Špano, Miroslav (advisor)
This thesis focuses on setting the range and efficiency of a water ram pump through experimental measurements in a laboratory. The measurements were carried out on three different constructions of water ram pump, each of the designed and assembled by the author of this thesis himself, to find out whether the weight on the pulsating valve has an influence on the water ram pump efficiency. Further on this thesis aims at the comparison of up to now methods of water transport arrangement used at a summer camp and the usage of the water ram pump and its advantages. The principal of water ram pump originates in hydraulic impact that is being precisely described in a great detail as well. On of the chapters even includes the placement manual for the water ram pump and its overall assembly and connexion. Because the presence of floating debris is inevitable, this thesis also deals with the possibility to solve the incoming water impurities by adding an inflow gating to prevent such problem. This inflow gating has only been designed in a Flow 3D programme to introduce the idea and functions.
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Heating of the guesthouse
Diatel, Jakub ; Topič, Jan (referee) ; Počinková, Marcela (advisor)
The theoretical part of this thesis is based on ideal design of solar systems and determine physical properties of antifreezing mix based on glycol in different concentration by Swiss mathematical model. In practical part is solved heating of the guesthouse by pellets. Heating of the hot domestic water was designed by solar collectors. Forced ventilation was designed with heat recovery.
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Water supply of scout camp by hydraulic ram
Růžička, Jakub ; Duchan, David (referee) ; Špano, Miroslav (advisor)
This work is dealing with water supply of a scout camp from Trusovický potok. The water is pumped with a ram pump to the water tank. The construction of the ram pump is simplified and it is collected from commonly available fittings and fixtures. The water from the tank is distributed by pipe network gravitationaly. Operating charakteristics of the hydraulic ram pump were measured in the laboratory.
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Check valve
Nehybová, Petra ; Závorka, Dalibor (referee) ; Klas, Roman (advisor)
In this Master thesis are mentioned the most used constructions of non-return valves. Further consist of operation principles, fields of application, properties and diffi-culties connected to non-return valves. Motion plug of check valve in liquid is described based on CFD Software simulation.
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Determination of the working range and efficiency of the water hammer pump
Růžička, Jakub ; Himr,, Daniel (referee) ; Špano, Miroslav (advisor)
This thesis focuses on setting the range and efficiency of a water ram pump through experimental measurements in a laboratory. The measurements were carried out on three different constructions of water ram pump, each of the designed and assembled by the author of this thesis himself, to find out whether the weight on the pulsating valve has an influence on the water ram pump efficiency. Further on this thesis aims at the comparison of up to now methods of water transport arrangement used at a summer camp and the usage of the water ram pump and its advantages. The principal of water ram pump originates in hydraulic impact that is being precisely described in a great detail as well. On of the chapters even includes the placement manual for the water ram pump and its overall assembly and connexion. Because the presence of floating debris is inevitable, this thesis also deals with the possibility to solve the incoming water impurities by adding an inflow gating to prevent such problem. This inflow gating has only been designed in a Flow 3D programme to introduce the idea and functions.
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Determination of the working range and efficiency of the water hammer pump
Růžička, Jakub ; Haluza,, Miloslav (referee) ; Špano, Miroslav (advisor)
This thesis focuses on setting the range and efficiency of a water ram pump through experimental measurements in a laboratory. The measurements were carried out on three different constructions of water ram pump, each of the designed and assembled by the author of this thesis himself, to find out whether the weight on the pulsating valve has an influence on the water ram pump efficiency. Further on this thesis aims at the comparison of up to now methods of water transport arrangement used at a summer camp and the usage of the water ram pump and its advantages. The principal of water ram pump originates in hydraulic impact that is being precisely described in a great detail as well. On of the chapters even includes the placement manual for the water ram pump and its overall assembly and connexion. Because the presence of floating debris is inevitable, this thesis also deals with the possibility to solve the incoming water impurities by adding an inflow gating to prevent such problem. This inflow gating has only been designed in a Flow 3D programme to introduce the idea and functions.
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Water supply of scout camp by hydraulic ram
Růžička, Jakub ; Duchan, David (referee) ; Špano, Miroslav (advisor)
This work is dealing with water supply of a scout camp from Trusovický potok. The water is pumped with a ram pump to the water tank. The construction of the ram pump is simplified and it is collected from commonly available fittings and fixtures. The water from the tank is distributed by pipe network gravitationaly. Operating charakteristics of the hydraulic ram pump were measured in the laboratory.
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