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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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Energy Management of Administrative and Industrial Buildings
Coufal, Jaroslav ; Jaroš, Michal (referee) ; Hejčík, Jiří (advisor)
Nowadays, energy management is very important in terms of trying to save the environmental impact of human activities. If we want to have beautiful nature around us, it is important to think conscientiously in our consumption. In my bachelor thesis I describe the requirements of energy management. The goal of my work is to define what belongs to energy management and what solutions already exist on the market.
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Modern coding of speech signals using overcomplete models
Zapletal, Ondřej ; Průša, Zdeněk (referee) ; Rajmic, Pavel (advisor)
The theoretical contents of this thesis are studies of overcomplete models. Those are the models of signals, on which is set for their parametrization more variables, than it's necessary and consequently there's computed so-called sparse solution via iteration algorithms. A goal of this analysis is a selection just of the considerable (sparse) parameters. The theory is based on a linear algebra, vector spaces, bases and so-called frames. The task of the individual project of this thesis is a description and simulation of two speech coders: a classical coder based on linear predictive speech coding and a coder, that's making use of overcomplete stochastic ARMA processes models. A part of their realization is to simulate their decoders and a analyze their reconstruction quality. For their realization there is used MATLAB and an overcomplete models' library (toolbox frames).
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Android app - Energy Monitor with Prediction
John, Tomáš ; Herout, Adam (referee) ; Szőke, Igor (advisor)
The thesis describes process of creation mobile application used for recording and processing data from consumption energy meters. Application targets on devices with operating system Android. The task was to study similar solutions and then design and implement own one. Enriched by the possibility of predict future energy consumption, using historical outdoor temperatures. Also bring the optional OCR (Optical Character Recognition) reading meter's values. Weather data obtain from internet weather service. And from stored data be able to make user- rendly charts and statistics showing energy consumption.
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The Energy of a Flying Object Necessary for Damaging the Vehicle Windscreen
Havlík, Ondřej ; Tylšar, Vladimír (referee) ; Bradáč, Albert (advisor)
The theoretical part of the thesis entitled "The Required Energy of a Flying Object to Damage a Windscreen" covers the historical development of glass as a raw material and its further use as a key material for the automotive industry. In the following chapters, the thesis provides an analysis of a windscreen in general including the material composition of various windscreen manufacturers, the distribution according to the accessories used in the windscreens, and the various options of placing a windscreen in a car bodywork. The homologation of a windscreen and the procedure for replacing or repairing a windscreen after a damage is also covered. Lastly, the experimental part of the thesis describes the process of testing the required energy of a flying object to damage a windscreen.
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Utilization of absorption systems in the heating systems
Vidlák, David ; Špiláček, Michal (referee) ; Pospíšil, Jiří (advisor)
Main goal of this work is familiarization with basic features of absorption heat pumps and it’s growing importance on the market. In the first part of the work there is a research for clarifying facts associated with such pumps. In the introduction there are descriptions of basic information from the field of heating industry and its connections to our systems. Next there is a brief analysis of price changes in electricity and heat in the last five years. Main part of the analytical section is a description of the used absorption system. Second part of the work is focused on the calculation of the absorption system itself. First there is calculated internal and external part of the device according to the parameters from GE Power s.r.o. After this step there are parametric studies based on changes of key parameters of the default device for a demonstration of the behavior of a heating pump. In the end of the work there is a integration of the unit into the heating cycle for variations including flue gas condenser and using a cooling water from the turbine condenser.
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Accumulation of electricity from renewable sources
Plíšek, Petr ; Špiláček, Michal (referee) ; Pospíšil, Jiří (advisor)
This diploma thesis deals with the issue of accumulation of electricity produced by renewable sources. The first part focuses on the description of possible ways of accumulation, especially with focus on those methods, that are suitable for renewable energy sources. The next part deals with the design of the accumulation energy in the compressed air for the selected photovoltaic power plant. The necessity of designing a particular method of energy storage, is also its technical and economic analysis, which is the content of the last part of the thesis.
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Potential of biomass resources in CZE and costs of its energy utilisation - II
Štěrba, Martin ; Pavlas, Martin (referee) ; Máša, Vítězslav (advisor)
In recent years, we are more and more confronted with the concepts of bio-energy, biomass or biofuels. In conjunction with the increasing pressure on the use of these commodities thein demand is increased. Crops for the purpose of energy production may be an important renewable source of energy and are the primary topic of the work submitted. Introductory chapter provides distribution, characteristics, list of representatives of crops and ways of energy utilisation the crops. Is folloved by an introduction to the legislation dealing with energy crops. The market for biofuels is still in its infancy, and therefore the work submitted presents only general view of the current status of the production and use in the Czech Republic and potential prospects. Interesting is also the position of farmers and the issue of competitiveness. These areas are collectively analyzed in the final chapters.
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Modern Application for Household Heating
Šoupal, Filip ; Brázdil, Marian (referee) ; Lisý, Martin (advisor)
This bachelor thesis is focused on the research of basic sources, methods, and possibilities of heating modern family houses. The thesis is divided into three parts, the first one is focused on the advantages and disadvantages of individual heating sources in the use of renewable and non-renewable energy sources. The next section thoroughly describes and compares the methods of heating considering current emission standards. At the end, there is a technical and economic comparison of the variant of the current gas boiler with the variant of the automatic coal boiler and the modern heat pump. The comparison in interpreted on a model house through performed calculations. For better accuracy, the thesis is enhanced with pictures and tables.
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