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Modification of a blood pump as a heart replacement
Simandl, Mirek ; Fialová, Simona (referee) ; Pochylý, František (advisor)
The master’s thesis deals optimization of regenerative pump and axial pump with ring motors that are designed as a heart replacement. Analysis of the koncepts is performed which were made in previous master’s thesis. There is created a new design of construction and hydraulition with using flat motors based on the analysis. The compact assembly of two impeller was formulated that replaced left and right heart and it served as a function of heart replacement. A functional model of the pump is created, there is measured characteristics of impeller and results are compared with CFD analysis. The design requirements some parts of the axial pump are added and it’s deviced feasibility analysis.
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Swirl pump as an artificial heart replacement
Čápová, Ludmila ; Fialová, Simona (referee) ; Pochylý, František (advisor)
The purpose of the diploma thesis is to establish on survey of swirl pump from previous years and his optimization via which is suggested the second degree of synchronous pump whereas they should work together like a total artificial heart. Hydraulic and constructional proposal is solved. Conception is realized experimentally also with help of CFD calculation, results are compared with each other.
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Vortex pump as a possible heart replacement
Coufalík, Martin ; Klas, Roman (referee) ; Klas, Roman (referee) ; Fialová, Simona (advisor)
The diploma thesis deals with the issue of artificial hearts and ventricular assist devices. The theoretical part describes the heart and its function. Blood is characterized in terms of rheological behavior and the possible criteria for hemolysis are discussed. The following section describes the most commonly used ventricular assist devices, with emphasis on the use of the regenerative pump, including its components. In the practical part, an experimental analysis of two pumps (COV 43 and COV 23) is performed. Furthermore, non-dimensional characteristics of the pumps are constructed using the laws of similarity. In the computational part, the CFD analysis of the regenerative pump is performed by means of stationary and transient calculation. The results are compared with the experimental findings and based on the results, the impeller of regenerative pump was modified.
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Dynamic radial force on centrifugal pump impeller
Nováková, Naděžda ; Hudec, Martin (referee) ; Habán, Vladimír (advisor)
This thesis deals with the radial forces acting on the impeller of a centrifugal pump. It focuses on the centrifugal pump type BETA 26. It addresses forces acting on the pump shaft. These forces are converted into the impeller. The most extensive part of this thesis is devoted to the experimental measurement and evaluation. The results are summarized and processed graphically.
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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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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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Positive displacement pump design
Klapka, Petr ; Šperka, Oldřich (referee) ; Klas, Roman (advisor)
This thesis gives an overview of the structure of hydrostatic pumps. First, there is shown the integration of the hydrostatic pumps between other hydraulic machines and then there are described the fundamental relationships and characteristics. The main objective of this work is to make a basic list of species distribution and the classical hydrostatic pumps. For each type, while mentioning his principle, his description of the main members is also highlighted some of their advantages and disadvantages.
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