National Repository of Grey Literature 12 records found  1 - 10next  jump to record: Search took 0.00 seconds. 
Slip factor of the hydrodynamic pumps
Duda, Petr ; Archalous, Jakub (referee) ; Klas, Roman (advisor)
Bachelor thesis contains basic information about the hydrodynamic pumps. It describes the specific energy for an infinite number of very thin blade and following corrections to the finite number of blades. Part of this work is dedicated to all-weather resulting in Blade to blade channel and their effect on specific energy pump. There are illustrated by calculations of correction factors of individual authors and finally corrections are made on real three impeller wheels with a comparison of different methods.
Manual pumps
Matis, Michal ; Šedivý, Dominik (referee) ; Štigler, Jaroslav (advisor)
This thesis describes manual pumps. It contains research about history of usage of these pumps, further it deals with some pumps used today (construction, materials, pros-cons). Also it is pointing out on pumps in developing countries, which are used in places with lack of drinking water. In practical part is described design procedure of pedal-powered pump.
Stability of centrifugal pump characteristic curve
Chmatil, Ľuboš ; Haluza, Miloslav (referee) ; Pochylý, František (advisor)
This thesis includes the theoretical part explaining problematic of centrifugal pumps, Y(Q) characteristics of these centrifugal pumps and stability of these characteristics, ways and conditions for stabilisation and adaptations heading to stabilisation.
Slip factor of the hydrodynamic pumps
Chromek, Lukáš ; Himr, Daniel (referee) ; Klas, Roman (advisor)
This bachelor thesis deals with the initial draft of an impeller wheel, determination of its specific energy that has a pump with infinite number of impeller blades and following correction to real specific energy of an impeller wheel pump with finite number of blades. The correction will be performed using different methods by various authors and some of the methods will also be compared during the calculation of specific energy and discharge head of pump of several real impeller wheels. Then the thesis goes on to deal with some of the effects arising from the flow of fluid in the impeller wheel that often have negative influence on above-mentioned specific energy. At the end of the thesis, there will be brief abstract on problems of the correction, simulation, and analysis of flow in a blade channel using CFD software.
Theoretical and experimental setting of the side channel pump specific energy
Dančák, Zdeněk ; Habán, Vladimír (referee) ; Fialová, Simona (advisor)
This master’s thesis deals with side channel pumps. Derivated formula of specific energy is supplemented by other equations and the results of CFD simulation. Further are analysed the mechanism of energy transfer from the impeller and external characteristics of the pump.
Stability of centrifugal pump characteristic curve
Kollár, Martin ; Haluza, Miloslav (referee) ; Pochylý, František (advisor)
This master's thesis includes theoretical analysis of characteristics of a centrifugal pump, conditions of stability of Y(Q) characteristic, calculation of characteristics ßč(ns), modifications leading to stabilization of a spiral body and a runner, a design of the spiral, the runner and follow-up computation in Fluent program.
Manual pumps
Matis, Michal ; Šedivý, Dominik (referee) ; Štigler, Jaroslav (advisor)
This thesis describes manual pumps. It contains research about history of usage of these pumps, further it deals with some pumps used today (construction, materials, pros-cons). Also it is pointing out on pumps in developing countries, which are used in places with lack of drinking water. In practical part is described design procedure of pedal-powered pump.
Stability of centrifugal pump characteristic curve
Kollár, Martin ; Haluza, Miloslav (referee) ; Pochylý, František (advisor)
This master's thesis includes theoretical analysis of characteristics of a centrifugal pump, conditions of stability of Y(Q) characteristic, calculation of characteristics ßč(ns), modifications leading to stabilization of a spiral body and a runner, a design of the spiral, the runner and follow-up computation in Fluent program.
Theoretical and experimental setting of the side channel pump specific energy
Dančák, Zdeněk ; Habán, Vladimír (referee) ; Fialová, Simona (advisor)
This master’s thesis deals with side channel pumps. Derivated formula of specific energy is supplemented by other equations and the results of CFD simulation. Further are analysed the mechanism of energy transfer from the impeller and external characteristics of the pump.
Stability of centrifugal pump characteristic curve
Chmatil, Ľuboš ; Haluza, Miloslav (referee) ; Pochylý, František (advisor)
This thesis includes the theoretical part explaining problematic of centrifugal pumps, Y(Q) characteristics of these centrifugal pumps and stability of these characteristics, ways and conditions for stabilisation and adaptations heading to stabilisation.

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