National Repository of Grey Literature 39 records found  beginprevious26 - 35next  jump to record: Search took 0.00 seconds. 
Heating of houses with solid fuels
Gerát, Mário ; Poláčik, Ján (referee) ; Baláš, Marek (advisor)
Bachelor thesis deals with the ways of heating houses with solid fuels. In the first chapter is visualized preview of solid fuels suitable for application in family houses, properties of solid fuels, their structure and modifiaction to proper form for heating. In the second chapter is preview of solid fuel heating techonologies for family houses, their division, principle of operation, advantages and disadvantages of each technology. In the last chaper is economical assessment and comparison of chosen types of comustion devices aplicated on standard house, integration of devices and their operation costs.
Proposal the heating system of the house
Zouhar, Adam ; Poláčik, Ján (referee) ; Baláš, Marek (advisor)
This bachelor thesis is dealing with proposals for the heating of the model house and about assessment of investments to these solutions. First, research of heating systems has been done, then the model house has been described. After that heat loss of this building and the energy needs for heating and preparing hot water have been calculated. At the end, some solutions of the heating system have been proposed. The financial comparison of these solutions has been done in the last chapter of the thesis.
Efficiency of hydrogen production by electrolysis
Pelán, Ondřej ; Špiláček, Michal (referee) ; Poláčik, Ján (advisor)
This thesis summarizes the basic information abouth hydrogen, its production, storage and energy utilization. The emphasis is put on alkaline electrolysis, the factors affecting its effeciency and the results of applying pulsating direct current. The end of the thesis attempts to experimentally prove the possibilities of regulating the performance of the alkaline electrolyzer.
Solar Energy Applications in Houses
Jankůj, Tomáš ; Špiláček, Michal (referee) ; Poláčik, Ján (advisor)
This thesis is focused on photovoltaics and photothermics. Their source is solar radiation that belongs to the category of renewable sources. At present, great emphasis is placed on ecology and economics. For this reason, renewable sources are coming to the foreground. In the first part of the bachelor thesis, types of photovoltaic cells, technology and their efficiency are presented. Furthermore, the principle and construction of photovoltaic and photothermal systems are described. The second part describes the design of the energy solution of a family house using solar energy.
Effect of operating parameters of the boiler on presence of fine particles in flue gas
Košťál, Jan ; Poláčik, Ján (referee) ; Pospíšil, Jiří (advisor)
This diploma thesis is devoted to the issues of the formation of fine particles in dependents on the combustion parameters. The first part of thesis is review, which summarized the information about combustion process and about formation of the gaseous products and fine particles inside them which created during combustion process. The main content of thesis is realization of measurements of fine particles from combustion, in several types of the tested combustion devices. Next part is a description of used measurement devices, which used for measurement. Last chapters are focused on evaluation of results from the measurements, comparison of the measurements between themselves and the finding the existence of the dependence of the formation of fine particles on operational parameters of boiler. And all results are evaluated in the conclusion.
Hydrogen production
Kunický, Ondřej ; Šnajdárek, Ladislav (referee) ; Poláčik, Ján (advisor)
Bachelor thesis deals with the production of hydrogen by electrolysis. The introductory part describes the basic properties of hydrogen, the possibilities of its storage and transport, hydrogen safety, the hydrogen economics, and the impact on the environment. Greater attention is then paid to the current possibilities of using hydrogen and its production from fossil and renewable sources. The next part of this thesis deals with possibilities of increasing the efficiency of electrolysis and the control of its performance. At the end, there is a practical measurement of electrolyser and a calculation of the efficiency of hydrogen production by electrolysis.
Storage systems for renewable energy
Švácha, Filip ; Kracík, Petr (referee) ; Poláčik, Ján (advisor)
The aim of the thesis is to describe the current possibilities of storing electricity from renewable sources focusing on hydrogen technologies. In the first three parts, the question of energy sto-rage from renewable sources, the current energy storage options and the actual energy storage in hydrogen are discussed in the form of research. The last part is practical and its aim is to compare the current possibilities in designing a system that stores energy in hydrogen. Subsequently, the most favorable option is chosen and compared to other energy storage methods.
Off-grid system and container housing
Filka, Tomáš ; Kracík, Petr (referee) ; Poláčik, Ján (advisor)
This thesis sums up current possibilities of using renewable energy sources and addi-tional technologies which can be suitable for off-grid systems. Specifically, it describes the possibility of their application to the increasingly common container structures. The first part of this work contains information about history and present trends in the area of renewable energy sources and container housing. The second part shows a concept of such house, completely disconnected from the public grid. The results of this study allow basic insight into the problem and illustrate the practical application of acquired knowledge.
Assessment of investment in heating houses
Kučera, Cyril ; Poláčik, Ján (referee) ; Baláš, Marek (advisor)
The bachelor thesis deals with using the appropriate system for reducing the primary thermal energy for heating in a family house. The components of the work is the calculation of heat losses of the house according to ČSN 06 0210. The main focus of the thesis is to compare various energy saving systems and calculation of their profitability.
Solar energy storage
Řehák, Pavel ; Pospíšil, Jiří (referee) ; Poláčik, Ján (advisor)
This thesis aims to find solution that deals with excess energy produced by solar systems. Main point in this Bachelor's thesis is to solve off-grid solar power system that is completely self-sufficient. Introduction examines how solar panels works and the best weather conditions of operating. Analytics part of this thesis focuses on basic information about types of power accumulation with their advantages and disadvantages. Practical part proposes system used and also mathematical solution of solar system.

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