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The energy demand of an indoor ski slope
Mozola, Ondrej ; Linda, Jakub (referee) ; Pospíšil, Jiří (advisor)
This diploma thesis deals with the issue of energy requirements for operation of indoor ski slopes. The first part is dedicated to research of snow making, cooling and construction methods of ski halls along with the examples of specific projects. In the second part, the aim was to design a ski hall with specific geometry and insulation and then define energy losses of such building. Subsequently, all related energy flows were calculated, which led to the determination of the required cooling capacity. Based on this, the cooling cycle was calculated and the overall electricity demand for the operation of the ski hall during the year was set. In the third part, three options for covering electricity needs are evaluated and at the same time they are compared in terms of financial costs during the year.
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Construction and building of a wind turbine
Pavlík, Šimon ; Linda, Jakub (referee) ; Škorpík, Jiří (advisor)
The aim of the bachelor thesis is to write a background research which deals with construction and building process of big wind turbines. The theory of potential wind energy and fundamental principal of the wind power are introduced in the first chapter of this bachelor thesis. The second chapter deals with the description of each part of wind turbine and the differences in their construction depending on individual needs. Third chapter presents problems and solutions of transportation and construction of wind turbines. Fundamental building and logistic mechanisms are also included. The last part of this bachelor thesis is focused on multi-rotor wind turbines which can represent the future in the wind power industry.
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Determination of the carbon footprint of different waste treatment techniques
Suchomel, Ondřej ; Linda, Jakub (referee) ; Köbölová, Klaudia (advisor)
This bachelor’s thesis focuses on the issue of waste treatment, waste management and carbon footprint. The aim of this thesis is to understand the complexity of these industries and propose a plan for the city of Brno based on the research done. The first theoretical part explains the benefits of circular economy and waste analysis in Czech Republic. The ensuing part describes the process of carbon footprint calculation and presents its advantages and disadvantages of carbon footprint. The two following theoretical sections discuss the methods and possibilities of waste treatment by conventional and modern methods. Last part of this thesis is a computational design and offers a waste processing proposal for the city of Brno. This thesis predominantly addresses the advantages and disadvantages of composting and anaerobic digestion for biowaste processing. A practical use of these technologies has been proposed based on the calculations.
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Wind machines for urban areas
Linda, Jakub ; Pospíšil, Jiří (referee) ; Škorpík, Jiří (advisor)
The submitted diploma thesis deals with wind machines in densely populated areas. The aim of the work is to design a appropriate wind machine for use on the roofs of buildings, including all the specifics that the air flow in the city may contain. At the beginning, the work focuses on the production of electricity in cities in general, which results in an ideal system of obtaining energy for households. Furthermore, the work deals with the wind in general, where all its specifics are taken over. A very important part of the work is the study of the specifics of air flow in the urban environment together with the numerical simulation of this flow, which results in certain regularities of the location of wind machines on the roofs of buildings. The work then passes to a search of used wind machines, from which the most suitable candidate for use in cities is subsequently selected. The last part of the work is the design of the machine itself for a specific location. In this chapter, the design wind speed is determined from the measured data, which is later followed by the calculation of the geometry of the blades, and finally its benefits and advantages are determined from the properties of the wind machine
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The concentration of fine particles in the indoor environment of buildings
Turčina, Lukáš ; Linda, Jakub (referee) ; Köbölová, Klaudia (advisor)
The issue of health is given a great deal of attention. However, human health is mainly affected by what enters the human body during life. Therefore, the emphasis is mainly on the quality of water, food, air or the overall environment in which people live. This bachelor thesis is focused on the issue of fine particles in the indoor environment of buildings, in which people spend most of their lives. Many of these particles enter the ambient air from the daily processes that people perform in the households. A high concentration of fine particles results in a greater probability of these particles entering the human body, where they can subsequently cause serious health problems. The theoretical part deals not only with the structure, size and impact of fine particles on the environment, but also on techniques for identification and measurement of fine particles, or methods of indoor air purification. The practical part is focused on the experimental measurement of fine particles in the indoor environment of buildings during everyday activities such as cooking, cleaning or using some equipment. The measurement results have shown that, especially during cooking and baking, a huge amount of particles enters the indoor air, especially PM1 particles, which have not yet received sufficient attention. Therefore, it is important to find suitable measures to eliminate these particles.
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Utilization of carbon fibre for construction of elastic elements of mountain bike rear triangle
Linda, Jakub ; Švancara, Pavel (referee) ; Březina, Lukáš (advisor)
The aim of the thesis is to design a carbon elastic element in the suspension mechanism of the rear wheel of a mountain bike. The elastic element will replace the rotary link and its deformation will allow movement of the rear wheel suspension mechanism. At the beginning, the thesis deals with the theoretical introduction to bicycle geometry, types of rear wheel suspension mechanisms and their characteristics. Later on, the work is devoted to composite materials in general, and it also deals with methods of manufacturing a composite bicycle frame and deals with the mechanics of composites. Further, the thesis is focused on the research of already existing frames utilizing the flexible element in the suspension mechanism of the rear wheel. Finally, the work focuses on the design of a full-suspension bicycle using a flexible element, justifies the choice of the replaced suspension mechanism and also justifies the individual simplifying assumptions and their impact on the solution. The elastic element is analyzed for deformations and stresses in the Ansys software. Finally, the results of the analysis and recommendations are presented.
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Possibilities of using biomass for home heating
Jurák, Matúš ; Linda, Jakub (referee) ; Lachman, Jakub (advisor)
This bachelor thesis deals with pellets and agropellets and their combustion, where main attention is given to emissions and their efficiency. Thesis consists of two parts. First part is theoretical, which consists of shown types of biomass, their properties and emissions created during combustion. The second part is experimental and its task is to compare efficiency and emissions created during combustion
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Small wind turbines in urban enviroment
Ondráček, David ; Škorpík, Jiří (referee) ; Linda, Jakub (advisor)
This thesis is focused on the problematics of smaller wind turbines usage in the urban environment. The beginning of the thesis deals with the basic theory of wind, its origin, and specifics of air flow in the urban environment. Furthermore, a search of currently available wind turbines suitable for the urban built environment is performed, and regarding the specific air flow in this environment, possibilities are proposed to increase the efficiency of these turbines. The next part of the thesis analyses the experience from real world applications. At the end of the thesis, the energy gains generated by the selected turbine and photovoltaic panels in given locality are calculated, ending with a comparison of the suitability of these two sources of renewable energy.
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Energy utilization of biomass through wet fermentation
Odehnal, Lukáš ; Linda, Jakub (referee) ; Kalivodová, Markéta (advisor)
The final thesis focuses on the energy utilization of biomass and the description and calculation of the energy balance of a specific biogas plant, Valeč near Hrotovice. The text is divided into five blocks, in the first block the sources of biomass and its subsequent energy use are discussed. The second part covers processes and technologies using wet fermentation. The third chapter describes a specific biogas plant. The fourth part calculates the balance of electricity and heat production, and the last chapter of the thesis summarizes the calculated values and compares the technology used with other possible sources.
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Storage systems for renewable energy
Šebek, Denis ; Linda, Jakub (referee) ; Poláčik, Ján (advisor)
The accumulation of energy by hydrogen technologies is an important topic for the advancment of energetics in the future. This thesis is based around different methods of accumulation of energy including acumulation of energy by hydrogen technologies. Furthermore, the thesis describes methods of hydrogen storage, its advantages and disadvantages, and the overall principle. In the last part of the thesis, a hydrogen accumulation plant is designed, which uses electricity from renewable sources as its energy source.
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