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Study of materials for the Li-ion batteries by electron microscopy
Hujňák, Jan ; Čudek, Pavel (referee) ; Kazda, Tomáš (advisor)
This work deals with problems of lithium-ion batteries. In the theoretical part are described electrochemical sources in general and their division. The main representatives of individual types of electrochemical sources are described in more detail. In the next part the thesis focuses specifically on lithium-ion accumulators, their history, electrochemical reactions taking place inside and materials of individual parts of which the accumulator consists. Next part focuses on electron microscopy and its division into scanning and transmission. Basic parts and the principle of operation are described. The practical part is focused on creating a small cell for examination under an electron microscope.
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Bioreactor monitoring and control for optimal heat gain
Hujňák, Jan ; Bajko, Jaroslav (referee) ; Baxant, Petr (advisor)
This bachelor thesis deals with thermal energy generation in biodegradation processes, monitoring and control of these processes. In the theoretical part, it gives a brief overview of biodegradation processes, then focuses only on processes in which waste heat is produced. Mainly it focuses on the composting process, its stage, the ideal composition of the composting material, the composting methods, the control quantities and the metering devices. The practical part focuses on the improvement of the original bioreactor and the subsequent realization of the new bioreactor. The bioreactor is subsequently monitored using temperature sensors that describe the ongoing processes inside the compost using measured temperatures. The aim of the bachelor thesis is to connect the bioreactor with yurt, to realize thermal circulation and to control this circulation through the AMiNi system in order to achieve optimal heat recovery without negative effects on the course of biodegradation processes inside the bioreactor.
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Study of materials for the Li-ion batteries by electron microscopy
Hujňák, Jan ; Čudek, Pavel (referee) ; Kazda, Tomáš (advisor)
This work deals with problems of lithium-ion batteries. In the theoretical part are described electrochemical sources in general and their division. The main representatives of individual types of electrochemical sources are described in more detail. In the next part the thesis focuses specifically on lithium-ion accumulators, their history, electrochemical reactions taking place inside and materials of individual parts of which the accumulator consists. Next part focuses on electron microscopy and its division into scanning and transmission. Basic parts and the principle of operation are described. The practical part is focused on creating a small cell for examination under an electron microscope.
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Bioreactor monitoring and control for optimal heat gain
Hujňák, Jan ; Bajko, Jaroslav (referee) ; Baxant, Petr (advisor)
This bachelor thesis deals with thermal energy generation in biodegradation processes, monitoring and control of these processes. In the theoretical part, it gives a brief overview of biodegradation processes, then focuses only on processes in which waste heat is produced. Mainly it focuses on the composting process, its stage, the ideal composition of the composting material, the composting methods, the control quantities and the metering devices. The practical part focuses on the improvement of the original bioreactor and the subsequent realization of the new bioreactor. The bioreactor is subsequently monitored using temperature sensors that describe the ongoing processes inside the compost using measured temperatures. The aim of the bachelor thesis is to connect the bioreactor with yurt, to realize thermal circulation and to control this circulation through the AMiNi system in order to achieve optimal heat recovery without negative effects on the course of biodegradation processes inside the bioreactor.
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