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Project construction management technology unit
Šaroun, Josef ; Pospíšil, Jiří (referee) ; Fiedler, Jan (advisor)
The target of this master thesis is specify the requirements, which come up while summing the investment aim of a new 40MW energetic unit, and show the overall project management. Thesis is divided into two parts. First part deals with project management from the investors point of view. There is also detailed concept study, technological description of piston co-generation units and combined cycle, concept design of calculated variations and their economical analysis. Second part is taken from the point of view of the main supplier. There is defined the range of operations, documents and official permissions needed for successful finish of the civil part of the energetic unit project.
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Expansion Turbine
Hlavinka, Miloslav ; Kracík, Petr (referee) ; Fiedler, Jan (advisor)
The content of this bachelor thesis is the analysys of a problem of expansion turbines and their usage in the gas-steam cycle. In the first part the respective parts of the combided cycle are described, Brayton cycle and Rankine-Clausius cycle. The gas-steam cycle is discribed subsequently. In the second part the natural gas is briefly described and how it gets to us. There is described the conventional natural gas reduction station and the conventional process steam reduction station. The main part is a description of the expansion turbine, division of turbines, caluclation of efficiency and a description of steam and natural gas expansion turbine. Then there is a describtion of the steam-gas heating plant Červený mlýn and its parts. As an example of the economic evaluation the replacement of conventional reduction station at heating plant Červený mlýn by expansion turbine is shown.
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Design of a combined cycle electricity source
Kadáková, Nina ; Kolat, Pavel (referee) ; Milčák, Pavel (advisor)
A combined cycle is one of the thermal cycles used in thermal power plants. It consists of a combination of a gas and a steam turbine, where the waste heat from the gas turbine is used for steam generation in the heat recovery steam generator. The aim of the diploma thesis was the conceptual design of a combined cycle electricity source and the balance calculation of the cycle. The calculation is based on the thermodynamic properties of the substances and the basic knowledge of the Brayton and Rankin-Clausius cycle. The result is the amount and parameters of air, flue gases, and steam/water in individual places and the technological scheme of the source, in which these parameters are listed.
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Steam-gas cycle from a thermodynamic viewpoint
Pransperger, Jan ; Štětina, Josef (referee) ; Jaroš, Michal (advisor)
This thesis deals with thermodynamic of steam-gas cycle and compare that with some others heat cycles. It focuses on efficiency of cycle and its limits in the context of the second thermodynamic low. Also it shortly summarizes some technical solutions and possibilities of the cycle. The mentioned knowledge are applied to concrete example of Brno’s heat and power plant Červený mlýn (Red mill) in the last part and allow assessment of its efficiency.
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Increased power microturbines operating in indirect circulation
Polák, Luboš ; Fiedler, Jan (referee) ; Škorpík, Jiří (advisor)
Turbogenerator unit 100B TGU, produced in the First Brno Engineering Velká Bíteš a.s., works in Brayton indirect circulation. The aim of this work is the proposal to increase performance levels of technological unit in which the micro-turbine is applied. The work presents various ways to increase performance and efficiency of circulation. The possible options are compared with each of the technological and economic terms. Based on these criteria was selected variant feeding additional water into the circulation. For this design was the work of a mathematical model based on, which was established as the economic balance of the selected variants. The thesis also proposes a technological scheme, which is already incorporated the selected variant and an outline of the verification tests.
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Steam generator
Krčálová, Petra ; Tomáš, Zdeněk (referee) ; Fiedler, Jan (advisor)
Master thesis on topic steam generator deal with about improving the efficiency due to the use of combined cycle while producing electrical energy. The first part includes the possibility of using combustion engines in the energy sector and describes their advantages and disadvantages in the production of electricity. Further described is the use of the concept of a combustion engine in a combined cycle, and improving the efficiency of electricity through the use of waste heat boilers and steam turbines. The second part is design of the steam generator, which is connected behind the chosen combustion engine with power exceeding 10 MW. Whether this concept is profitable and competitive is in mentioned in the last chapter dealing with the return entry investment. In this chapter is compared several variants use and a demonstration of the impact of fuel prices on the profitability of this concept.
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Design of a combi cycle power plant based on a mixture of hydrogen and natural gas
Kopřivová, Anna ; Lisý, Martin (referee) ; Milčák, Pavel (advisor)
The aim of this diploma thesis is to create research on the use of a fuel mixture with hydrogen in gas turbines of combined cycle. The work deals with natural gas and hydrogen, their production and subsequent distribution or storage. It also contains a description of the combined cycle and the gas turbine, the calculation of which is devoted to a part of this work. The result is in analysis of the influence of the addition of hydrogen to the fuel mixture on the parameters of the combined cycle, together with an analysis of the possibility of using combustion with oxygen-enriched air in gas turbines, and the identification of critical points.
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Design of a combined cycle electricity source
Kadáková, Nina ; Kolat, Pavel (referee) ; Milčák, Pavel (advisor)
A combined cycle is one of the thermal cycles used in thermal power plants. It consists of a combination of a gas and a steam turbine, where the waste heat from the gas turbine is used for steam generation in the heat recovery steam generator. The aim of the diploma thesis was the conceptual design of a combined cycle electricity source and the balance calculation of the cycle. The calculation is based on the thermodynamic properties of the substances and the basic knowledge of the Brayton and Rankin-Clausius cycle. The result is the amount and parameters of air, flue gases, and steam/water in individual places and the technological scheme of the source, in which these parameters are listed.
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Steam generator
Krčálová, Petra ; Tomáš, Zdeněk (referee) ; Fiedler, Jan (advisor)
Master thesis on topic steam generator deal with about improving the efficiency due to the use of combined cycle while producing electrical energy. The first part includes the possibility of using combustion engines in the energy sector and describes their advantages and disadvantages in the production of electricity. Further described is the use of the concept of a combustion engine in a combined cycle, and improving the efficiency of electricity through the use of waste heat boilers and steam turbines. The second part is design of the steam generator, which is connected behind the chosen combustion engine with power exceeding 10 MW. Whether this concept is profitable and competitive is in mentioned in the last chapter dealing with the return entry investment. In this chapter is compared several variants use and a demonstration of the impact of fuel prices on the profitability of this concept.
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