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Engineering solution of photovoltaic power station
Gajdošík, Ivo ; Sobotka, Jiří (referee) ; Míča, Ivan (advisor)
This thesis deals with the usage of solar photovoltaic panel production of electic energy. First part focuses on solar radiation alighting the Earth, respectively the area of Czech republic. Next part covers a development of photovoltaic from the very beggining til nowadays, it describes its spread in the world and the area of Czech republic. Then a reader us introduced to physical principles that work inside solar cells a one single chapter desribes individual parts of photovoltaic power station. Next chapter is dedicated to a model study of photovoltaic power station devided in two alternates- with stacionary placement of panel and placement on trackers, where after a market research, there is a whole technical solution designed and economical and delivery balance is calculated. At the last part there are described main directions of development in the field of usage of solar energy for electric current production.
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Off-grid street lamp design.
Hampl, Petr ; Karásek, David (referee) ; Křenek, Ladislav (advisor)
Oblast problémů, ze kterých konkrétní téma projektu vychází, zahrnuje současnou globální transformaci zdrojů energie a jejich dodávek se zvláštní pozorností na obnovitelné zdroje energie. Důraz je kladen zejména na hodnoty jež přináší produkt určený k užívání ve veřejných prostorách. Autorovým zadáním bylo navrhnout osvětlovací jednotku nezávislou na vnějším zdroji napájení. Cílem návrhu je přehodnotit způsob, jakým jsou dnes technologie využívání sluneční a větrné energie běžně používány, a navrhnout řešení přinášející nové vlastnosti a užitné hodnoty pro přímého uživatele i celou společnost. Autor přináší návrh produktu jenž je reakcí na současné globální hrozby a příležitosti. Výsledkem projektu je návrh pouliční lampy kombinující fotovoltaický článek a větrnou turbínu s cílem získat elektrickou energii jež je dočasně akumulována a následně dodávána svítidlu. V návrhu je kladen důraz na požadavky ergonomie a estetickou hodnotu produktu. Navržené řešení znamená finanční přínos z hlediska šetření neobnovitelnými zdroji energie a případnými finančními výhodami pro investora plynoucími z provozování veřejného osvětlení. Pouliční lampa nezávislá na vnějším zdroji napájení má navíc menší negativní dopad na životní prostředí a představuje technologie využívání větrné a solární energie v přívětivé a nerušivé podobě.
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Use of GIS at the Management of Photovoltaic Power Stations
Válek, Milan ; Martásek, Jan (referee) ; Dydowicz, Petr (advisor)
The Thesis topic deals with the design and implementation of the system for photovoltaic power stations property administration. Due to the scope of the property administered, a solution using geographic information systems has been selected. Functionality of the designed system with data defined for the photovoltaic power stations were verified in the pilot operation. The results of the pilot operation proved efficiency and effectivness of the designed system.
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Optimization of cooling the photovoltaic cell using CAE systems
Sodomka, Pavel ; Vyroubal, Petr (referee) ; Maxa, Jiří (advisor)
This thesis deals with the optimization of the concentrate photovoltaic cell cooling system through the CAE system. In the theoretical part, the thesis treats there the problematic of the photovoltaics and focuses on the concentrator cell and its problems coupled with the cooling system and the sink of heat. In the next theoretic part, it also analyses there the problematic of the conduit and transfer of heat. Moreover, the mathematical description of the fluid flow, the finite-volume method that is used in the SolidWorks Flow Simulation for the calculations, are also described there. In the practical part, the models and steps which depict precisely all the process of the heat cooling optimization are mentioned. All the proposed variants are mutually compared and put up for the discussion about their advantages and disadvantages. Lastly, the resultant model was also put through the simulation with the suggested radiational component that gave precision to the results. In the end of the thesis, there was made out the documentation of the final model drawings.
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State of photovoltaic in Europe Union
Kada, Tomáš ; Špinka, Jiří (referee) ; Vaněk, Jiří (advisor)
Present state analysis of photovoltaic in Europan union is aim of this semestral thesis. First part is focused on technical aspects - principals, components and applications. However economics, policy and development aspects are primary objective. Research of Europan comission targets in 2020 and feasible of meeting them are assessed by two various scenarios. To analyse microenvironment and macroenvironment SWOT nad PEST analysis are used. These analysis are focused for investors who wants to participate in the development of photovoltaic in Europan union.
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Test parameters and conditions of amorphous photovoltaic modules
Kostelník, Adam ; Křivík, Petr (referee) ; Vaněk, Jiří (advisor)
This master’s thesis deals with the problem of thin film solar cells, their parameters and measuring. The introductory chapter describes the properties of individual thin-film technology, summarizes their advantages against the crystalline silicon cell. Another chapter is exclusively focused on thin-film cells based on amorphous silicon. There is described the manufacturing processes of amorphous cells and modifications performed during the manufacturing. One part of master’s thesis is dedicated to the description of basic electrical quantities and PV cell degradation mechanisms that negatively affect these electrical properties. It is explained in detail the most important degradation phenomenon called Steabler - Wronski effect. The master’s thesis describes standards regarding testing amorphous cells as well as method, how to achieve their performance stability. The practical part is focused on the testing of several single-layer amorphous cells that were exposed to degradation and regeneration effects. One part of the thesis is studying of a new method of testing of amorphous cell, where is necessary to determine whether it is the degradation or regeneration process. Measured values obtained from several types of measurements were compared, evaluated and displayed in the graphs. The recommendation for future testing of amorphous article is stated in the final chapter.
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Laboratory measurement of V-A characteristic of PV cells in LabView environment
Kantor, Pavel ; Paar, Martin (referee) ; Procházka, Zdeněk (advisor)
In this thesis, we will deal with design and realization of measuring programme for laboratory measuring effectivity of photovoltaic converting with of evolutionary programming environment LabView. Thesis provides short ontroduction to the photovoltaic, theory of photoeffect. Describes used materials on production fotovoltaic cells and features major producer cells. Because measuring devices are interconnected with computer over port RS 232, this thesis deal with serial communication. Intoduce with evolutionary programming environment LabView and features possible methods solution of measuring programme. In the end set up instruction of metering.
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Systems design and possibilities of utilization of photovoltaic power station in the Czech Republic
Švec, Radovan ; Procházka, Zdeněk (referee) ; Mastný, Petr (advisor)
This bachelor thesis deals with project and possibilities of use of photovoltaic power stations at the area of the Czech Republic. The first part is dedicated to state and aproach to solar energy in our state and abroad. In the second part are described parts of mecanism used for conversion of solar radiation to electric energy. The third part deals with physical principal of photovoltaic effect. Other parts are dedicated to general project of photovoltaic power station and in the final part economic evaluation of project and joining to the transmission system are mentioned.
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