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Artificial heart on the principle of gas accumulators
Kunický, Ondřej ; Fialová, Simona (referee) ; Pochylý, František (advisor)
The diploma thesis deals with the design of an artificial heart based on the principle of gas accumulators. The introductory part describes the anatomy and physiology of the human cardiovascular system, mechanical heart replacement and the basic properties of pneumatic mechanisms. Furthermore, there is shown the procedure of pneumatic circuit design and its simulation in the program Simulink. The experimental part contains verification of the functionality of the pneumatic circuit, designed the positive displacement pump, and the measured characteristics of both ventricles. The last part of the work deals with the reduction possibilities of dimensions and weight of the whole mechanism. There is also included computational modelling of the pneumatic circuit using helium as a working medium.
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Hydrogen production
Kunický, Ondřej ; Šnajdárek, Ladislav (referee) ; Poláčik, Ján (advisor)
Bachelor thesis deals with the production of hydrogen by electrolysis. The introductory part describes the basic properties of hydrogen, the possibilities of its storage and transport, hydrogen safety, the hydrogen economics, and the impact on the environment. Greater attention is then paid to the current possibilities of using hydrogen and its production from fossil and renewable sources. The next part of this thesis deals with possibilities of increasing the efficiency of electrolysis and the control of its performance. At the end, there is a practical measurement of electrolyser and a calculation of the efficiency of hydrogen production by electrolysis.
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Artificial heart on the principle of gas accumulators
Kunický, Ondřej ; Fialová, Simona (referee) ; Pochylý, František (advisor)
The diploma thesis deals with the design of an artificial heart based on the principle of gas accumulators. The introductory part describes the anatomy and physiology of the human cardiovascular system, mechanical heart replacement and the basic properties of pneumatic mechanisms. Furthermore, there is shown the procedure of pneumatic circuit design and its simulation in the program Simulink. The experimental part contains verification of the functionality of the pneumatic circuit, designed the positive displacement pump, and the measured characteristics of both ventricles. The last part of the work deals with the reduction possibilities of dimensions and weight of the whole mechanism. There is also included computational modelling of the pneumatic circuit using helium as a working medium.
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|
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Hydrogen production
Kunický, Ondřej ; Šnajdárek, Ladislav (referee) ; Poláčik, Ján (advisor)
Bachelor thesis deals with the production of hydrogen by electrolysis. The introductory part describes the basic properties of hydrogen, the possibilities of its storage and transport, hydrogen safety, the hydrogen economics, and the impact on the environment. Greater attention is then paid to the current possibilities of using hydrogen and its production from fossil and renewable sources. The next part of this thesis deals with possibilities of increasing the efficiency of electrolysis and the control of its performance. At the end, there is a practical measurement of electrolyser and a calculation of the efficiency of hydrogen production by electrolysis.
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