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Materials for photovoltaic neurostimulators based on silicon photodiodes
Kunovský, Ondřej ; Weiter, Martin (referee) ; Glowacki, Eric Daniel (advisor)
Tato práce je zaměřena na možnosti neurostimulátorů s bezdrátovým přenosem energie, konkrétně se zabývá přenosem energie pomocí světla. Běžně používané neurostimulátory zahrnují bateriově napájené implantovatelné pulzní generátory a trpí problémem objemných baterií, které vyžadují invazivnější operace a nutnost periodické výměny. V této práci je zkoumána alternativa přenosu energie s využitím fotovoltaických diod. Monokrystalické křemíkové fotovoltaické diody jsou modifikovány a používány pro přeměnu energie ze světelné na elektrickou. Tyto diody byly rozřezány na různé velikosti aktivních ploch a byly zapojeny do sériových nebo paralelních zapojení. Tyto fotovoltaické články byly spojeny s elektrodami vyrobenými z osmi různých materiálů a se čtyřmi různými velikostmi fotovoltaických diod, aby pokryly širokou škálu možných neurostimulačních aplikací. Dále byl vyroben prototyp fotovoltaického stimulátoru skládající se z flexibilních elektrod a fotovoltaické diody. Tento prototyp byl úspěšně testován na modelech malých zvířat, kterými byli Hirudo verbena a Locusta migratoria. Tato práce charakterizuje řadu kombinací jednotlivých velikostí a materiálů elektrod s fotovoltaickými diodami pro různé intenzity a frekvence světla a vytváří mapu relevantních parametrů, z nichž lze navrhnout prototyp stimulátoru pro konkrétní aplikaci. Tato práce pokládá základ pro další vývoj fotovoltaických neurostimulátorů, které umožní nové experimenty a jednoho dne možná méně invazivní klinická zařízení.
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Feasibility study of a photovoltaic power plant investment project
PATERNA, Patrik
The work deals with the economic evaluation of a selected investment project for a photovoltaic power plant. The work seeks to explain the process of evaluating investment projects within technical-economic studies and methods for assessing the economic efficiency of investments. The aim is to characterize the process of evaluating investment projects and to make final financial and investment decisions for the selected investment project for a photovoltaic power plant based on calculations of economic criteria. Case studies are created in the practical part of the work, on which investment evaluation methods are applied. Sensitivity analyses are also conducted, which assess the impacts of variable changes on the final investment outcome. In conclusion, research questions are answered, and final financial and investment decisions are formulated.
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Using Industry 4.0 principles for mobile warehouse design
Eisenwort, Lukáš ; Zimáková, Jana (referee) ; Binar, Tomáš (advisor)
The aim of this diploma thesis is to apply industry 4.0 principles for designing a mo-bile warehouse. The first section contains the literary research, which deals with industry 4.0 in logistics. Next part deals smart warehouses and military warehouses. Analysis of the current state of the warehouse follows, technologies and processes in the military warehouse to be exact. Afterwards, the automation design of this warehouse is addressed. Both the current and the automated states are compared using the Saaty method. Finally, the photovoltaic system is designed.
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Evaluation of possibility of modifying selected part of public lighting network for EV charging
Hýsek, David ; Vrána, Michal (referee) ; Baxant, Petr (advisor)
The master thesis deals with the concept of smart cities in the context of motivation for the use of the synergy of public lighting network and charging points. The thesis provides an overview of projects from the Czech Republic and abroad focusing on the adaptation of the urban public lighting network for charging electric vehicles. Different variants of charging station installations and their management are discussed. Another important topic is the selection of a suitable location for charging stations and the concept of synergistic connection of these stations with the existing public lighting network. The thesis proposes scenarios for using the existing public lighting network for charging electric vehicles and scenarios for bringing a parallel cable to this network in selected Brno locations. The aim is to optimize the efficiency and performance of the public lighting network and at the same time provide a charging infrastructure for electric vehicles. The results of the thesis represent a valuable contribution to urban planning and the development of smart cities that focus on sustainable and environmentally friendly mobility. The synergy between the public lighting network and charging points represents a potential for efficient use of infrastructure in the urban environment while contributing to the reduction of greenhouse gas emissions.
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Financial return of home photovoltaic power plant
Jančík, Josef ; Malý, Milan (referee) ; Mauder, Tomáš (advisor)
This thesis if focused on return on ivestment evaluation of a photovoltaic system of residential house. The calculation is made for photovoltaic system with and without accumulation and in combination with other alternative source – heat pump. The costs of instalation and working of new systems are then compared between each other and with the cost of working of a current system without photvoltaic.
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Optimization of organic solar cells
Kratochvíl, Matouš ; Novák, Vítězslav (referee) ; Weiter, Martin (advisor)
This diploma thesis focuses on the preparation of large-scale organic solar cells using techniques compatible with large volume production. The theoretical part consists of research summarizing the basic theoretical background of the function of organic solar cells and the current state of investigation of the shift from laboratory to large-scale production. The experimental part deals with the optimization of methods of preparation of layers of structure of solar cells, which can be converted into industrial scale.
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Draft mix for network independence
Horváth, Radovan ; Špiláček, Michal (referee) ; Pospíšil, Jiří (advisor)
The aim of this diploma thesis is the development of research on the topic of the draft mix for network independence. Next is the outline the various design solutions of the battery systems for accumulation electric energy and balance model energy supply system for the selected object. The practical part of diploma thesis deals with necessary resources and the size of batteries for autonomous operation during the summer months and also implements technical and economic studies aimed at finding cost-effective solutions. The work is divided into 6 chapters that contain 16 tables and 18 figures. Diploma thesis brings an option to configure a photovoltaic system and also describes the features, functions and the choice between the most used technologies. Evaluation of results of theoretical methods are described in the final part.
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Energy Performance Certificate of the Building
Lněnička, Petr ; Vyhlídalová, Karolína (referee) ; Horák, Petr (advisor)
This bachelor thesis deals with the evaluation of the energy performance of the Mars hotel in Špindlerův Mlýn. The theoretical part of this thesis is focused on the conversion of sunlight into electric power using solar-powered photovoltaics. The practical part is focused on the analysis of energy consumption and energy flux of the inspected building. The final part C concerns about the result of this thesis – the energy performance certificate of the analyzed building.
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