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Carbon materials for power sources
Tichý, Jiří ; Bača, Petr (referee) ; Novák, Vítězslav (advisor)
This work deals with carbon materials and using them in electrochemical energy sources. Object of this work was to prepare carbon materials and investigate their electrical properties. The theoretical part objects of the carbon materials, their properties, application in electrochemical energy sources and measurement methods used in experimental part. Experimental part describes the preparation of the electrodes with various carbon materials and summarizes the results of measurements.
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Microprocesor controlled charger
Husník, Ondřej ; Ježek, Michal (referee) ; Kovář, Jan (advisor)
This thesis deals with design of microprocessor controlled battery charger with support of NiCd, NiMH and Li-Ion cells. The project focus is aimed within circuits design at algorithm of charge detection implemented into microprocessor. User interface is formed by PC application which communicates with charger via USB. PC connection allows recording of charging characteristics behaviour. The result of thesis is completely designed and created battery charger including microprocessor and PC application source codes.
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Device for measurement of electrochemical cells characteristics by the cyclic voltammetry
Kučera, Vojtěch ; Bilko, Radek (referee) ; Lábus, Radek (advisor)
The thesis deals with observation of cells parameters. One of the potential solutions for observing the characteristics of cells are utilization the electrochemical analyse called voltametry. Its fundamental consists of loading variable voltage in between two electrodes dipped in electrolytic solution and monitoring flowing current. The point of the thesis is to build up the measuring workplace, which can provide this measurement. We suggest utilization of modern laboratory technique and connection the measuring instruments with PC. The first part of the thesis deals with theoretical knowledge of used functions and describes theirs mathematics definitions. The second part deals with proceeding of workplace realization, instrument connection with PC and development application in computer’s language. Result is measuring workplace, which can provide observing cells according to entered parameters.
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Safe Uninterruptable Power Supply of Power Station Internal Consuption
Tomášek, Petr ; Přidal, Petr (referee) ; Orságová, Jaroslava (advisor)
This thesis examines issues connected to safe uninterruptible power supplies. The term safe uninterruptible power supply is used for an aggregate of devices providing power for appliances that participate in safe rapid shutdown of a power plant in case power from a usual source fails. The thesis is divided into two parts – theoretical and practical. Theoretical part deals with possibilities and ways of realizing an aggregation of safe uninterruptible power supply. Various devices that can appear in the section of a safe uninterruptible power supply are listed and each device is characterized. Appliances that can be provided for by the sources of safe uninterruptible power supply are mentioned as well. These appliances are listed in accordance with ČSN standard nr. 381120. The theoretical part concludes with new trends in realization of safe uninterruptible power supplies. One of these sources is a clean source technology that can also be implemented in various ways. Practical part contains a suggestion of a safe uninterruptible power supply for particular steam power plant. This suggested safe uninterruptible power supply consists of rectifiers, batteries, inverters and a dieselgenerator. Calculated parameters of each device at the conclusion of the practical part are followed by a diagram of the suggested section of safe uninterruptible power supply.
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Auxiliary sensorics for unstable balancing vehicle
Solnický, Vojtěch ; Krejčí, Petr (referee) ; Grepl, Robert (advisor)
This thesis continues on successful project of unstable balancing vehicle, which was completed in mechatronics laboratory in last year. The main goal is to supplement vehicle with display device displaying driving conditions. These conditions have to be acquired first from several sensors. Other issues, which are dealt in this thesis, is problem with damage of electronics due to induced voltage in DC motors with permanent magnets, built-in sensor for obtaining information about driver’s presence and logging driving conditions on SD card. In the end there is described implementation of sensors’ output signals verification.
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Additional Drive of Road HPV
Novák, Lukáš ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
This bachelor’s thesis is focused on the description of modern trends in additional drives of human powered vehicles study. It deals with the basic structures, the most important parts, recovery possibility and suggests future developments.
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Accumulation of energy
Neuman, Tomáš ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
This bachelor thesis comprises a technical retrieval of overview of energy accumulation usable in cars. The basic characteristics and problems of particular kinds of accumulators and ways of accumulation are brought in this thesis, describing characteristics of lead accumulator, the structure and composition of electromobiles and appropriate batteries. In the following part the description of heat and hydrogen accumulator is stated. The end of this bachelor thesis is dedicated to mechanical accumulator.
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Lithium as a strategic resource of future
Mothejzíková, Klára ; Čajka, Radek (advisor) ; Bolotov, Ilya (referee)
The purpose of this thesis was to most briefly summarize lithium topic, including as much information as possible, to introduce inexpert to this field. This thesis provides basic information about lithium as element and metal. It continues with enumeration of its applications emphasizing its importance in battery industry. Significant part of this thesis is dedicated to selection of some of the countries with lithium sites and reserves. Last there are suggestions of possible threats in rise of this industry. In conclusion there is a summary, whether the investment in lithium could be profitable.
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