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Carbon Capture Storage/Utilization
Šuráň, Michal ; Baláš, Marek (referee) ; Lisý, Martin (advisor)
The bachelor thesis deals with the issue of CCS and CCU. The main objective is a research of capture, transport, storage and utilization of carbon dioxide, specifically technologies associated with the combustion of fossil and biomass resources. The first part describes fuel transformations and subsequent separation technologies. The second part explains the transport of CO2. The third and fourth chapters refer to methods of storing and using carbon dioxide. The last section focuses on the issue of CO2 capture using biomass resources.
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Measuring station firmware for wireless data collection via LoRaWAN
Jánoš, Vít ; Možný, Radek (referee) ; Juráň, Radovan (advisor)
This thesis deals with software development for STM32WL55-JC1 MCU. Development kit was chosen primarily bacause of its LPWAN possibilities. Final prototype communicates on LoRaWAN network. Data are sent through public network from The Things Network, these data are concentrations of carbon dioxide, temperatures and carbon dioxide flux. Data are also backed up locally on SD card along with timestamp. The software was designed with the use of the chamber measurement method in mind, which is also described in the text.
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Influence of electricity generation on the environment
Žák, Jiří ; Novotný, Jan (referee) ; Matoušek, Antonín (advisor)
The concern of this Bachelor Thesis is current structure of electric energy sources in Czech Republic and their influence on the environment. The theoretical part maps the current state of energetics, structure of sources, consumption and installable output in ES CR. In the thesis, there is shown evolution of balance of electricity since 1988 and netto production of electricity in CR. There is also decribed export and import of electricity in the year 2008 and determination of the influence of different energetic equipments on the environment. The practical part deals with the emission of individual types of power stations, their manufacturing, calculation and possibilities of decreasing amount of carbon dioxide emission from the electric energy manufactories. Next point considers predicted development of equipments in relation to the environment. In the end, there is the overall evaluation of achieved information and results with influence on the environment.
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Nanocomposite varnishes
Hlavčo, Tomáš ; Rozsívalová, Zdenka (referee) ; Frk, Martin (advisor)
This work deals with issues of nanoparts and nanotechnology and it’s applications in the sphere of dielectrics. Primary objective has been to make series of varnish samples filled with nanoparts. Then we have measured dependencies of absorber and resorber currents and we have been monitoring changes of dielectric properties against unfulfilled samples. Used materials were epoxy resin TSA 220S filled with nanoparts of silicon oxide.
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Electromobility, today and vision
Valíček, Roman ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
The main target of this bachelor thesis is to create an overview of current and future status of electromobility in the Czech Republic, including an analysis of possible impacts of this developing field to other sectors, especially energy industry and ecology. This work is divided into several sections. The first part is research and it deals with general knowledge related to electromobility at first and then it analyzes the current situation in our country. The electric vehicle charging and electromobility support are discussed in detail. The second part of the thesis focuses on the influence of electromobility growth on the power system and on the electromobile emission footprint. These chapters are based on self calculations and the results are evaluated at the end. The conclusion summarizes the findings and there is a comment about upcoming development of electromobility in the future.
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Energy Assessment of Cogeneration and a Gas Boiler room
Kandl, Petr ; Počinková, Marcela (referee) ; Horák, Petr (advisor)
The thesis contains a gas boiler room energy assessment in Lišov. In the mentioned boiler room, there are instaled gas condensing boilers and cogeneration units Theoretical part of the thesis lists a summary of generally used cogeneration equipment and ordinarily used gases. Calculation part includes four variants of the boiler room reconstruction. Energy assessment compares the chosen variant from the calculation part with the original condition of the boiler room.
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Valves timing of compressor for CO2 refrigerant
Kamenický, Robin ; Kobský, David (referee) ; Hejčík, Jiří (advisor)
V posledních několika desetiletích se objevuje snaha o snížení firemních nákladů, stejně tak jako nákladů, které je nucen vynaložit zákazník, čímž se společnosti snaží získat výhodu vůči svým konkurentům na trhu. Spolu s tímto trendem jde i neustálá snaha snížit dopady na životní prostředí. Vývoj stávajících produktů se proto zdá být klíčovým prvkem. Tento dokument se zabývá vývojem pístového kompresoru na CO2 chladivo, který vyrábí společnost Emerson Climate Technologies. Cíl práce je zvýšit COP kompresoru při zachování stávající životnosti kompresoru. Diplomová práce je rozčleněna do několika kapitol, které se zabývají analýzou originálního designu kompresoru, návrhem a vyhodnocením designů nových. Nezbytné teoretické základy mohou být také shlédnuty v počátečních kapitolách. V poslední části dokumentu jsou sdělena možná další vylepšení a případné jiné konstrukce. Vývoj byl zaměřen na sestavu ventilové desky. Na základě několika předpokladů a výsledků analýzy původního designu kompresoru byly navrženy nové konstrukce, které byly dále testovány statickou strukturální analýzou. Pomoci modální analýzy byly také vypočteny vlastní frekvence a vlastní tvary sacího jazýčku. Mimo modální a statické strukturální analýzy byla provedena také CFD analýza. V posledním kroku byly testovány navržené prototypy a jejich výsledky byly porovnány s původním kompresorem. K správnému návrhu bylo zapotřebí programové podpory a to především v podobě MATLABu, ANSYSu WB a Microsoft Excelu. V práci jsou velmi často prezentovány obzvláště výsledky získané v programu ANSYS WB.
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Air Quality Analysis in Office and Residential Areas
Tisovčík, Peter ; Korček, Pavol (referee) ; Kořenek, Jan (advisor)
The goal of the thesis was to study the indoor air quality measurement focusing on the concentration of carbon dioxide. Within the theoretical part, data mining including basic classification methods and approaches to dimensionality reduction was introduced. In addition, the principles of the developed system within IoTCloud project and available possibilities for measurement of necessary quantities were studied. In the practical part, the suitable sensors for given rooms were selected and long-term measurement was performed. Measured data was used to create the system for window opening detection and for the design of appropriate way of air change regulation in a room. The aim of regulation was to improve air quality using natural ventilation.
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Engineering solutions for mitigation of climate change - methods applicable at the source of greenhouse gases
Remeková, Valentína ; Jedelský, Jan (referee) ; Lízal, František (advisor)
This work aimed to produce a research study on the topic of engineering solutions designed to mitigate climate change and which are applicable at the source of greenhouse gases. The first part outlines the fundamental matters of climate change. The second part focuses on technologies CCS (Carbon capture and storage) which capture and sequester carbon dioxide and possible options for separating CO2 from flue gases. The third chapter describes technologies CCU (Carbon capture and utilization) that use captured carbon as a product for further use. The future of these technologies and other abatement methods are addressed in the following section. The financial aspects of solutions for climate change mitigation are discussed in chapter five. The last part summarizes the main advantages, disadvantages, findings, and limitations of research.
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