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Regulation options of renewable energy sources
Pavlíček, Jiří ; Morávek, Jan (referee) ; Pěcha, Jiří (advisor)
This bachelor's thesis deals with the regulation of renewable energy sources. It focuses on ways of managing and possibilities of regulation renewable energy resources. Indicates the proportion of various types of renewable energy sources in electricity production and their representation in the electrical load profile. Thesis describes the various storage systems, which can be used to stabilize the renewable energy sources. Evaluate the applicability of these storage systems in the energy sector.
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Use Compressed Air to Electric Power Accumulation
Martinák, Rostislav ; Radil, Lukáš (referee) ; Baxant, Petr (advisor)
The aim of this paper is to acquaint the reader with the possibilities of using the energy of compressed air in different areas, but particularly with the use of compressed air to accumulate electrical power. This paper introduces the technologies they use to their function pneumatic tools, compressed air car and compressed air energy storage facilities. The next section is to compare the compressed air energy storage systems with some accumulation possible ways of electrical power. The conclusion sums up work opportunities to accumulate electrical energy in compressed air.
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Accumulation of electricity for a source with unstable production
Petrenec, Jan ; Milčák, Pavel (referee) ; Pospíšil, Jiří (advisor)
This diploma thesis deals with possibilities of accumulation of electricity generated by renewable sources with unstable production. Several goals were set by an assignment of this thesis. Within a research, current trends of the accumulation are presented in detail on examples of specific representatives with their technical parameters and economic possibilities. Further, an unstable source of electricity – the wind farm of three power plants Multibrid 5000 with all its parameters and operational details is defined for purposes of individual designs of accumulation systems. Firstly, the detailed design of an advanced compressed air energy storage (A-CAES) is realized. It includes a thermodynamic calculation of chosen components, their partial technical solutions, a financial evaluation of investment and a determination of theoretical payback period. Furthermore, the design for accumulators Tesla Powerpack is realized. It contains a calculation of individual system parameters, a financial evaluation of investment and a determination of theoretical payback period. Last part of the thesis is dedicated to a comparison and an evaluation of the achieved results of both realized methods of the electricity accumulation. In the end, A-CAES is chosen as more perspective variation.
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Optimization of ultrasonic leak detector of pneumatic system
Macků, Ondřej ; Mazal, Pavel (referee) ; Vlašic, František (advisor)
The thesis deals with design and optimization of exchangeable modules for localization of air distributable ultrasound in concept of ultrasound probe design. Several series of these modules were manufactured using the technology of rapid prototyping and tested on artificially created source of air leak. Based on these verification experiments two types covering wide use for identification of pneumatic systems leaks were selected and modified. These two types are long range module for more accurate and expended reach of the leak detection and focusing attachment for narrowing the received range of scanning module and elimination of surrounding ultrasound. Part of the thesis is also analysis of the acoustic signal processed by modern acoustic emission analysers which allow besides standard parameters recording also continuous sampling up to 10 MHz and design solution for attachment of add-on modules to the detector. The thesis is beneficial for raising awareness of leak measurements, prototype manufacturing by using the 3D printing and designing and manufacturing of modules.
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Accumulation of Energy from Renewable Energy Sources
Heller, Ondřej ; Radil, Lukáš (referee) ; Mastný, Petr (advisor)
The objective of the first part of master’s thesis is mapping the potential of various types of renewable sources in Europe and Czech Republic, especially solar energy, wind energy, water energy and biomass. There are described principals and ways of energy generation from these sources, brief overview of current technologies, and also their advantages and limitations. An important part is electric supply continuity from renewable sources, there are large differences and the resulting to restrictions on construction and connecting the units to the power system. In this work there are mentioned some impacts on network and rates of change of supply, some sources are also evaluated in terms of maximum power, that can be connected to the power system in our country. The conclusion of the first part is dedicated to energy storage technologies, which are suitable and usable for renewable sources, there are described their principals, properties, status of development and types of aplications, in which these technologies are used. This chapter also focusses on the price level of each technology. The second part of the thesis deals with 1 MWp on-grid photovoltaic power plant design. This design includes also the redox flow batteries accumulation, the first variant calculates on 24-hour steady energy supply, the second optimalized variant calculates on daily energy supply. There are the accumulation system costs estimated and also the payback period for the both variants. Additionally there is also determined minimum penalization for cost-effective operation. The last part is dedicated to changes of impact on the local grid and changes of system impacts, after the accumulation system is installed.
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Increasing the range of a vehicle with alternative propulsion
Dryml, Tomáš ; Ranuša, Matúš (referee) ; Navrátil, Václav (advisor)
The bachelor's thesis deals with increasing the range of a vehicle with an alternative drive, which is compressed air. First, an analysis of the pneumatic circuit is performed, from which the areas to be modified result. To improve, it is chosen to find a suitable working pressure and the correct filling, which is calculated on the basis of constant pressure filling and subsequent adiabatic gas expansion. From the theoretical calculation, the runs per cylinder stroke at different pressures are determined and the selected pressures are subsequently experimentally verified. The results show that the most suitable setting increased the range from 331 meters using the original setting, to 616 meters with the new setting.
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Design of end effector for testing the defects in plastic bottles
Karn, Pavel ; Szabari, Mikuláš (referee) ; Kočiš, Petr (advisor)
This diploma thesis deals with the design of an end effector for robot that will be able to test the presence of defects in plastic bottles during their handling. The first part of the thesis is devoted to theory and deals with the different types of defects in plastic bottles as well as the currently used technologies for defect detection. The second part is focused on the systematic analysis and design of the variants, from which the most suitable one was selected using multicriteria analysis. The following part deals with the actual design of the selected variant and the necessary engineering calculations. The last part is devoted to the estimation of costing and the creation of manufacturing drawings.
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Minimalizace provozních nákladů pneumatických výrobních systémů
Horňák, Jan
The subject of the master thesis is the determination of process and implementation measures within energy management with a focus on compressed air consumption and leakage in pneumatic production systems. In cooperation with the company SMC Industrial Automation CZ s.r.o., the methodology of compressed air leakage detection using an ultrasound-based device was applied in an unnamed manufacturing company focusing on pneumatic production systems, which consist of twelve separate production lines. Measuring of the technical status of each production line, evaluation of the data, determination of measures and recommendations leading to minimization of operating costs. Comparison of leakage measurement methods and cost reduction opportunities for compressed air consumption.
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Compressed-air energy storage
Strnad, Jan ; Mauder, Tomáš (referee) ; Klimeš, Lubomír (advisor)
The bachelor thesis is focused on the problematics of compressed air energy storage. It includes a short introduction to the thermodynamics of ideal gases. The suitable geological conditions for the selection of CAES (compressed air energy storage) systems, the advantages and disadvantages of each type, the method of their production, and the process of compressed air accumulation itself were discussed. The thesis presents individual diagrams of compressed air power plants, and special attention is given to the description of the accumulation process. The last section is focused on the description and comparison of two built CAES systems working on an identical concept and also presents information on the unrealized planned CAES systems.
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Demonstration tasks for pneumatic automation devices
Uhlíř, Miloš ; Parák, Roman (referee) ; Hůlka, Tomáš (advisor)
This bachelor's thesis focuses on the creation of materials for teaching with a focus on automation using pneumatic automation devices. First of all, it is necessary to find out the availability and quality of freely available materials dealing with the same topic. Based on these findings, then create a theoretical basis and follow-up demonstration tasks. It was required that the complexity of this work would allow even a complete layman to understand the basics of designing and constructing pneumatic systems and circuits.
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