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Support of the energy sources construction for households
Stručovský, Aleš ; Radil, Lukáš (referee) ; Bartošík, Tomáš (advisor)
This bachelor thesis deals with the comparison of energy sources used for residential construction. It focuses on photovoltaic power plants, wind power plants, hydropower plants and cogeneration units. Budget cost of energy source is limited to the amount of 550 000 CZK. Every source of energy is defined by its feature, operating principle, advantages and disadvantages. Options of selling the produced energy and its price are specified. Furthermore, the particular building licence applications (construction administration approval, generation of power questionnaire, application for connection to the distribution network, application for the contract of energy production support) including all the necessary enclosures have been analysed. Essential aspect for buying the energy source is its power and it is chosen according to the type of source. Energy source of hydropower systems is flow and gradient, in wind power systems it is wind speed, in photovoltaic power systems it is sufficient intensity of sunshine and in cogeneration units its dependance on annual heat consumption. Specific energy source available on our market is chosen for every group and the calculations of annual electricity production, period of repayment and profitability in 20-year running period are performed.
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Cogeneration power plant
Ptáček, Martin ; Pospíšil, Jiří (referee) ; Fiedler, Jan (advisor)
This bachelor thesis deals with heat and power supply of the family house, which uses natural gas.The first part reveals cogeneration technology in general, especially cogeneration unit based on gas-engine (internal combustion engine).In the second part, the thesis focuses on energy budget (power-balance sheet) issue. Finally, the third and fourth chapter, deal with particular calculation of usability of cogeneration unit in the small family house. Due to a small final financial difference and large investment costs, with such a low heat and power consumption, this technology is unsuitable for this type of usage.
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Cogeneration unit at the wastewater treatment plant
Hoferková, Lenka ; Hlavínek, Petr (referee) ; Hluštík, Petr (advisor)
Energy management is topical issue and we have to solve this global problem. There is also an option to exploit the renewable energy. The source might be biogas produced during anaerobic sludge stabilization. This bachelor thesis deals with using biogas in cogeneration units at sewage water plant. First section covers the main Czech and EU legislation and regulations in the field of water treatment, sewage sludge treatment and cogeneration. The next section is devoted to production of biogas and possibility of utilization in cogeneration. The thesis divides cogeneration systems and mentions the main parameters such as energy efficient and wattage. Local and European companies are chosen from the fields of manufacturer. The practical part deals with designing of cogeneration unit at sewage water plant Zdar nad Sazavou. According to calculated and measured parameter adequate unit from local manufacturer Tedom is chosen. Moreover, there are other solutions for replacing the engine in the current unit (by Tedom) or general repair (by Motorgas). All options are evaluated from the view of profitable investment. The conclusion is that It would be preferable to replace the engine.
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The design of alternative heating system for object Technicka T12
Bártů, Jan ; Mastný, Petr (referee) ; Pitron, Jiří (advisor)
The aim of this work is to design an alternative source for the property Technicka 12. In the first part of this work, the author introduces the methods of heating and possibilities of using renewable resources of energy for heating, including their advantages and disadvantages. In the second chapter are described alternative energy sources. In the next chapter, individual buildings are typified by size and heat requirement, defined factors influencing their consumption and described heating methods for real examples described and used methods of heating buildings in practice. In the final practical part, the heat pump ground/water is selected from the above described alternative sources, as currently the best alternative solution for large buildings. Within this practical section is described the design and proper calculation of this type of pump, including return on investment. At the end of this bachelor’s thesis was elaborated the technical report and the detail design for installation of the heat pump.
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Design of industrial boiler with cogeneration
Mička, Radek ; Tvarůžek, Martin (referee) ; Křenek, Ladislav (advisor)
The diploma thesis deals with the design of the industrial boiler for biomass, Which deals with the issue of the energy future of combustion of fuels using current power generation - microcogeneration, designed for larger houses or smaller com- panies. The shape of the device is the interconnection of individual functional and technological parts of the boiler, a view of a new product that re ects its function. It uses modern and timeless materials, color and control technology to achieve overall comfort and time savings and service.
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Trigeneration and its use in practice
Čupera, Pavel ; Mastný, Petr (referee) ; Baxant, Petr (advisor)
e master's thesis clarifies the concept of trigeneration and the principle of absorbing cooling. Compare the advantages and disadvantages of this method of manufacture cool with compressor cooling. It presents an overview of the implementation of a developing cold absorption and performance. Acquainted with the types of absorption chillers of the two leading suppliers, their characteristics and existing applications of these refrigeration units in operation in the Czech Republic and abroad. It also assesses the possibility of using these units in conjunction with a cogeneration unit powered by internal combustion engine. It follows from the economic assessment of costs and income of the absorption chillers and compressor chillers and on concrete examples and an assessment of the effectiveness of the various options.
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Cogeneration units for the heating industry
Kašpar, Jakub ; Milčák, Pavel (referee) ; Kracík, Petr (advisor)
The bachelor thesis on the topic of Combined heat and power units for central heating systems focuses on the potential benefits of CHP units within energy mix of the Czech Republic. Furthermore, it describes basic functional principle and construction of gas CHP units. In the last part there is developed mathematical-physical-chemical model, which is able to predict the operating parameters of the CHP unit, assuming the combustion of a mixtures of natural gas and hydrogen, while the hydrogen concentration changes. The model was compiled on the basis of the technical sheet of the real motor generator MTU 20V4000 GS with an electrical output of 2,538 kW, which is designed for natural gas combustion. According to the calculations, it was found that the overall efficiency of the cogeneration unit decreases as the hydrogen concentration in fuel increases. At the same time, it is necessary to increase the power input of the fuel to maintain constant electric power.
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Biomass microcogeneration unit with turbomachine
Horák, Jiří ; Fiedler, Jan (referee) ; Škorpík, Jiří (advisor)
This Master´s thesis deals with a theoretical micro cogeneration unit design contains hot air microturbine using energy from biomass. In the first part of the thesis there are model examples of energy consumption in typical family or apartment houses. In the next part there is the overview of micro cogeneration commercial units which can be used in model examples of a family or apartment housing. According to the assignment of this thesis and based on the analysis of model examples a new cogeneration system is designed. The last part of the thesis deals with the economic evaluation of the new cogeneration system compared with commercial systems.
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Cogeneration units for the heating industry
Kašpar, Jakub ; Milčák, Pavel (referee) ; Kracík, Petr (advisor)
The bachelor thesis on the topic of Combined heat and power units for central heating systems focuses on the potential benefits of CHP units within energy mix of the Czech Republic. Furthermore, it describes basic functional principle and construction of gas CHP units. In the last part there is developed mathematical-physical-chemical model, which is able to predict the operating parameters of the CHP unit, assuming the combustion of a mixtures of natural gas and hydrogen, while the hydrogen concentration changes. The model was compiled on the basis of the technical sheet of the real motor generator MTU 20V4000 GS with an electrical output of 2,538 kW, which is designed for natural gas combustion. According to the calculations, it was found that the overall efficiency of the cogeneration unit decreases as the hydrogen concentration in fuel increases. At the same time, it is necessary to increase the power input of the fuel to maintain constant electric power.
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Design of industrial boiler with cogeneration
Mička, Radek ; Tvarůžek, Martin (referee) ; Křenek, Ladislav (advisor)
The diploma thesis deals with the design of the industrial boiler for biomass, Which deals with the issue of the energy future of combustion of fuels using current power generation - microcogeneration, designed for larger houses or smaller com- panies. The shape of the device is the interconnection of individual functional and technological parts of the boiler, a view of a new product that re ects its function. It uses modern and timeless materials, color and control technology to achieve overall comfort and time savings and service.
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