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Conceptual design of a hydroelectric plant on the Liwagu River in Malaysia
Hamsová, Adéla ; Jobánek, Stanislav (referee) ; Šulc, Jan (advisor)
The bachelor thesis deals with the conceptual design of a small hydropower plant on the Liwagu River in Sabah Province, Malaysia. The background and site survey was provided by Stream Ltd. The work included the design of the intake structure, intake pipeline, engine house and its process section. A suitable type of machine was selected for the hydropower plant. At the end of the work, an economic analysis of the project was prepared. In terms of payback, the project was evaluated as beneficial. The bachelor thesis includes a calculation part, a drawing part and a photo documentation of the designed site.
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Evaluation of real PV system operation
Macák, Vít ; Gregorovičová, Eva (referee) ; Pospíšil, Jiří (advisor)
This bachelor thesis covers photovoltaic systems, their various configurations and main components. It analyses a specific installation on a single-family house, evaluating the operational data and the economic return of the system. The thesis also provides recommendations for future operations and system expansion options.
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Evaluation of real heat pump installation operation
Pliml, Patrik ; Gregorovičová, Eva (referee) ; Pospíšil, Jiří (advisor)
The bachelor thesis on heat pumps focuses on various aspects related to heat pumps, including heat transfer or economic benefits. The function of the heat pump is described in a review way. Furthermore, the main heat pump components, low temperature energy sources and different types of heat pumps are presented. The main part of the thesis is focused on the evaluation of the heating of a family house after a real installation of an older heat pump. To solve this part, own measurements were used as well as a calculator to calculate the heat loss of the heated building. These results formed the basis for the evaluation of the system in terms of operational, technical, and economic aspects. A table was created in which the data on the electricity con-sumption for the heating period was kept in order to compare the heat losses obtained from this calculator. The aim of the last part of the bachelor's thesis was to design the heat pump in order to reduce the electricity requirements for heating. This requirement is based on the results obtained in the previous part and corresponds to the current standards of new heat pump technologies. The output of the thesis is a new heat pump design in order to reduce the electricity consumption.
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Electroculture: A New Way of Boosting Crops?
Šácha, Michal ; Langerová, Petra (referee) ; Špoula, Jakub (referee) ; Šedrlová, Magdalena (advisor)
Tato práce se zabývá hypotézou elektrokultury, která zkoumá vliv magnetického pole na osiva jež nebyla zaseta, sazenice a dospělé rostliny. Práce podrobně zkoumá výzkumy, které podporují hypotézu elektrokultury, včetně zjištění o zrychlení klíčivosti, zvýšení vitality a specifické přínosy u jednotlivých druhů. Studie klade důraz na vztah mezi intenzitou magnetického pole a délkou expozice, spolu s pozorovanými účinky jež mohou mít pozitivní či negativní výsledky. Kromě toho práce rozebírá elektrokultivační zařízení, včetně metody e-ventus, a zkoumá důvody, jež stojí za nálepkou pseudovědy s níž bývá elektrokultura často spojována. Je provedeno srovnávání mezi chemickými prostředky používanými v zemělděství a metodou e-ventus, přičemž výsledky průzkumu ukazují podobné či dokonce lepší výsledky při chemickém ošetření. Nakonec je uvedena kritická analýza elektrokultury a její potencionální budoucnosti, která naznačuje, že ačkoli elektrokultura nemusí být nejvhodnější pro velkoplošné zemědělství, mohla by si najít místo v ekologickém zemědělství.
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Retail electricity price analysis
Chmelař, Šimon ; Zinecker, Marek (referee) ; Radil, Lukáš (advisor)
This thesis focuses on the analysis of electricity retail prices within the Czech Republic. In recent years, spot electricity prices have become a significant topic due to their high volatility, which was caused by market liberalization, geopolitical factors, and the gradual transition to sustainable energy sources. The aim of this work is to create a computational model for estimating the composition of various types of wholesale prices from the retail prices offered by electricity suppliers. The first part of the thesis summarizes the functioning of the wholesale electricity market, its components, and the types of electricity trading. The second part of the thesis focuses on compiling calculations using MATLAB software. By analyzing wholesale prices and prices offered by a certain supplier, it determines whether the supplier has secured at least the minimum part of the estimated consumption of its customers and is thus able to fulfill its obligations.
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Energy supply of the complex Technicka 2
Buráň, Petr ; Lisý, Martin (referee) ; Pospíšil, Jiří (advisor)
The theme of this master thesis is „Energy supply to the site Technická 2“. This thesis is divided into several parts. First we will get in touch with concept of combined heat and power and also with principle of photovoltaic electricity production. We will continue with description of site before and after reconstruction. Then we will follow with analyze the effect of reconstruction on energy consumption. In the end we will make some suggestions for using the local source of heat and electricity in Faculty of mechanical engineering, Brno university of technology. All suggestions will be analyzed from energy and economic point of view.
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Realization of a smart meter
Cu, Lukáš ; Mlýnek, Petr (referee) ; Lieskovan, Tomáš (advisor)
This thesis deals with the issue of smart metering, specifically electricity metering. It introduces the reader to the basic concepts associated with it and describes the technology used to implement such an electricity meter. The practical output of this work is a real smart electricity meter made of a singleboard platform Raspberry Pi 3 B, the Arduino platform and two external modules for measuring the state of electrical network. These modules are current sensor SCT-013-000 and a voltage sensor ZMPT101B. The software solution for controlling individual components and for working with the data is implemented using a combination of code created specifically for this purpose and of code from an external library belonging to Gurux company.
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Electricity Consumption Progression Analysis
Kunc, Dominik ; Procházka, Jiří (referee) ; Bartošík, Tomáš (advisor)
The aim of this thesis is to briefly introduce the reader to the problem of development of the electricity consumption, to show the possibilities of its prediction, and provide an example of electricity consumption analysis, which may serve as a basis for long-term forecast. The first part of this work is devoted to brief overview of the development of consumption of electrical energy in the Czech Republic and factors associated with that development. The main events of Czech electrification history are outlined, as well as factors influencing the magnitude of the demand for electricity in the recent times. There are described the possibilities of the influence of foreign exchange and price of the electricity, net losses, GDP, the consumption of gas, the number of inhabitants, or the structure of the economy. This work further describes the development of the consumption of electric energy abroad and comparison of the electricity consumption in the Czech Republic to its neighboring countries, in which there are apparently influence by variety of factors that affect the consumption development trend. For more complex overview, the electricity consumption of most of European states is being noted, and near the end of the chapter the development in poorest countries and in quickly growing economies is shown. The fourth chapter mentions methods for short and middle-term prediction of consumption of electricity. There also is more consistent description of possibilities useful for long-term prediction, for which the use of the results of statistics analysis is possible. The description of observed data that are used to find the dependences of different factors is made in the following part. Further the approach of the statistics analysis used in this thesis is shown, and the key terms are explained. The dates concerning the consumption of Czech Republic are analyzed, followed by the states with similar trend of the consumption and finally other European states. Sixth chapter examines the possible uses of the outcomes of statistical analyses for long-term prediction of electricity consumption. The conclusion sums up the knowledge acquired during the research concerning problem of electricity consumption and my own analysis of data.
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Thermodynamic cycles used in power engineering
Suchomel, Josef ; Kracík, Petr (referee) ; Baláš, Marek (advisor)
Power engineering is one of the most important parts of industry. Among other things, it deals with production of electricity, without which many of us can no longer even imagine life. All energy devices can be described on the basis of different thermodynamic cycles. And with these thermodynamic cycles this thesis deals. It lists both, the most important cycles, such as Rankin Clausius cycle, which is the basic cycle of most of the power plants, as well as less known, resp. almost new thermodynamic cycles. The emphasis of the whole work is also focused on the advantages and limitations of the stated cycles and on their application in practise, too.
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Power - plant
Studený, Jan ; Severa, Zdeněk (referee) ; Mléčka, Jan (advisor)
The "POWER - PLANT" deals with the rehabilitation of the former Central Power Conversion and Dale Schoeller (Nejedly I and III) in the village Libušín Mine. Will be newly designed for building the power plant technology with progressive fluidized bed boiler to biomass steam turbine with an output of 7 MW and absorption (trigeneration) unit producing heat, cooling and electricity, which also will function as a cooler primary circuits. The source of water for the power plant will not only former mining pit Nejedlý I which is currently flooded drinking water at about 12 ° C. This system uses high efficiency embedded fuel (biomass), which is ultimately required less. A greater proportion of electricity generated and part of the heat will be distributed to the public network. In most areas will be proposed publicly accessible greenhouses of steel-aluminum construction filled ETFE foil forming the heat insulating membrane filled with air. The reason is to create conditions for the cultivation of tropical and subtropical plants. Greenhouses will be connected to the absorption unit power (underground meanders through which water will circulate), the ventilation shaft mine and mine water - therefore it will be possible to manage the conditions of the internal environment of the building without the influence of the season and especially without mounting other technological devices. It will provide for cooperation with the absorption unit for cooling the primary circuit - therefore eliminating the need for cooling towers or fans. The project will build a detached departments of the Faculty of Mechanical Engineering in Prague - Institute of progressive technologies and systems for energy and the Faculty of Agronomy and Natural Resources CULS. The reason is to allow students and scientists actively and in practice mainly participate in the operation and especially the development of the issue. The public in the area besides themselves open to the greenhouses indoor and outdoor thermal swimming. Part of the entrance hall is a bistro and foremost lecture hall. The aim is decentralized botanical-energy complex of buildings that produce electricity, heat, cooling, and biomass, and creating recreational, educational and research conditions.
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