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Biomass drying
Kroupa, Zdeněk ; Špiláček, Michal (referee) ; Baláš, Marek (advisor)
The bachelor thesis deals with drying of biomass and balance calculation of specified drying equipment. The task is to calculate the amount of flue gas needed to dry 170 kg of fermentation with a moisture content of 50% to 15%.
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Turbogenerators in nuclear power plants
Oulehla, Jan ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
The aim of this thesis is to prove the viability of analytical methods for evaluation of thermodynamical properties of steam in the turbogenerators by calculation and comparison with the real data from NPP Dukovany. Calculation is seconded by a brief introduction to the principle of electricity generation in nuclear power plants and description of primary, secondary and terciary circuit of NPP Dukovany. Substantive part is also analysis of often used turbogenerators and their comparison with those used in classical thermal power stations.
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Design of combustion chamber 30 kW for gaseous fuels
Rychter, Aleš ; Hudák, Igor (referee) ; Skryja, Pavel (advisor)
Master thesis deals with design of combusting chamber for gaseous fuels with predicted thermal output less than 30 kilowatts. Designed equipment will be used as a generator of flue gases with required parameters further used for experimental catalytic unit. Due to the need of draft creation inside the combustion chamber and exhaust pipe is master thesis also deals with design of ejector nozzle, which will be used for this purpose. Opening chapters of this work, considering a theoretical part, are focused on basic classification of combustion chambers and industrial burners. Next and main chapter is dedicated to main goal of this work, which is combustion chamber design, containing necessary calculations divided into balance calculation and construction design. Final chapters deals with above mentioned calculation of ejector nozzle ensuring sufficient draft and also sufficient cooling of flue gases incoming from catalytic unit.
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Steam Turbine for fossil power plant - MP LP casing
Třináctý, Jan ; Weber, Norbert (referee) ; Fiedler, Jan (advisor)
This thesis describes the design of a condensing steam turbine with reheating for fossil power plant. The turbine is a double parts. The first casing is formed by a simple HP casing. The second casing is combined MP-LP casing with axial outlet of steam into the water-cooled condenser. Feedwater regeneration system consists of two high-pressure heaters, the four low-pressure heaters and feed tank. In thesis is includes the calculation of heat balance and the draft of flow channel of HP and MP-LP casing. Next is a detailed calculation of MP-LP casing with includes calculation of flowing part, selection of blade´s profiles and its stress control. Rotor MP-LP casing is checked for torsion and computed size of the critical speed. Clutch is ispected by security check and draft radial bearings. Stress control casing is carried out according to the theory of thick shells. Work includes flow scheme for 100% and 75% performance. In the end is comparing the efficiency of the individual casing of the turbine with the work 3b together with the specific heat consumption. Work includes a longitudinal section of the MP-LP casing. This thesis has been developed in cooperation Škoda Power, Doosan.
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Assessment of energy storage systems - Power to gas
Šojat, Filip ; Zlevorová, Tereza (referee) ; Baláš, Marek (advisor)
This bachelor's thesis is focuses on the issue of electrical energy storage using Power to Gas technology. The thesis is divided into two parts: a research part and a practical part. The research part provides a detailed description of the basic principles of Power to Gas technology, hydrogen production, and its potential applications in various fields. The practical part consists of a hypothetical study on obtaining electrical energy from solar panels and subsequently storing it as hydrogen. Various storage methods are compared.
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Turbogenerators in nuclear power plants
Oulehla, Jan ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
The aim of this thesis is to prove the viability of analytical methods for evaluation of thermodynamical properties of steam in the turbogenerators by calculation and comparison with the real data from NPP Dukovany. Calculation is seconded by a brief introduction to the principle of electricity generation in nuclear power plants and description of primary, secondary and terciary circuit of NPP Dukovany. Substantive part is also analysis of often used turbogenerators and their comparison with those used in classical thermal power stations.
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Posouzení stavu a návrh optimalizace technologie neutralizační stanice ČOV v provozovně Prym Consumer CZ s.r.o.
SKUHROVEC, Tomáš
The bachelor thesis is focused on the issue of wastewater treatment generated from the inter-operation and final processes of electroplating. In the theoretical part, the reader gets acquainted with the current legislation in the field of wastewater treatment, which must be considered when we deal with water management. In connection with the influence of the mentioned production operations on the formation of hazardous waste of gaseous, solid and liquid state thegreat emphasis is placed on the categorization of waste water according to the type of harmful substances and the technique of their processing in the system of divided water management. The most important chemical or mechanical cleaning procedures are explained in this thesis, conditioned by the specific composition of the waste water where the knowledge is very necessary. Treatise on minimizing the production of waste from individual galvanic and associated production operations is attached for a possible suggestionof optimizing the operation of a wastewater treatment plant. From an economic and ecological point of view, it is equally important to pay attention to both wastewater treatment and the processes in which they are generated. In this area, optimization interventions are often more effective than at their own wastewater treatment plant. The practical part deals with the assessment of the efficiency of cleaning the internal wastewater treatment plant in the company called PRYM CONSUMER CZ s.r.o. The assessment was based on the theoretical basis of available cleaning techniques, local investigation and chemical analysis of wastewater. The operation of a galvanic line with a narrow focus on a two-stage economic rinse required a special approach. The bulk of the economic rinse was destined for disposal during the local investigation. This non-standard procedure significantly increases the level of wastewater pollution. The technological balance calculation of the recovery of the economic rinse was carried out in its whole volume based on the results of the chemical analysis. The material balance assessed possible benefits in the surface treatment workshop and the internal wastewater treatment plant. Subsequently, the design of the solution for the return of the economic rinsing to the galvanic bath was carried out. Despite the increased material load, the neutralization station achieved good cleaning efficiencies during the 2017-2018 period. The average concentration of Ni2+ ion was 0.059 ? 0.03 mg.1-1, F- = 6.5 ? 4.1 mg.l-1, NL = 3.5 ? 1.9 mg.l-1 and a pH of 9.04 ? 0.4. In the control profile of the neutralization station, the contractually agreed pollution limit values were not exceeded. Additional analysis of RAS did not comply with the sewerage regulations in two cases, namely by 10 mg.l-1 (March 17, 2017) and 650 mg.l-1 (September 1, 2017), the average concentration was 1792.5 ? 404.7 mg.l-1. The results were consistent with the suggested wastewater treatment technology and technique. From the balance calculation was found out that the gradual return of the two-stage economic rinsing to the galvanic bath reduces the annual production of RAS 1,037 kg. The total annual production of sludge will decrease 3,754.6 kg and the total annual operating costs of the galvanic line will decrease CZK 178,590. The results of this work will be used by PRYM CONSUMER CZ s.r.o. in the Optimization of Neutralization Plant Operations Savings Project.
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Biomass drying
Kroupa, Zdeněk ; Špiláček, Michal (referee) ; Baláš, Marek (advisor)
The bachelor thesis deals with drying of biomass and balance calculation of specified drying equipment. The task is to calculate the amount of flue gas needed to dry 170 kg of fermentation with a moisture content of 50% to 15%.
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Steam Turbine for fossil power plant - MP LP casing
Třináctý, Jan ; Weber, Norbert (referee) ; Fiedler, Jan (advisor)
This thesis describes the design of a condensing steam turbine with reheating for fossil power plant. The turbine is a double parts. The first casing is formed by a simple HP casing. The second casing is combined MP-LP casing with axial outlet of steam into the water-cooled condenser. Feedwater regeneration system consists of two high-pressure heaters, the four low-pressure heaters and feed tank. In thesis is includes the calculation of heat balance and the draft of flow channel of HP and MP-LP casing. Next is a detailed calculation of MP-LP casing with includes calculation of flowing part, selection of blade´s profiles and its stress control. Rotor MP-LP casing is checked for torsion and computed size of the critical speed. Clutch is ispected by security check and draft radial bearings. Stress control casing is carried out according to the theory of thick shells. Work includes flow scheme for 100% and 75% performance. In the end is comparing the efficiency of the individual casing of the turbine with the work 3b together with the specific heat consumption. Work includes a longitudinal section of the MP-LP casing. This thesis has been developed in cooperation Škoda Power, Doosan.
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Design of combustion chamber 30 kW for gaseous fuels
Rychter, Aleš ; Hudák, Igor (referee) ; Skryja, Pavel (advisor)
Master thesis deals with design of combusting chamber for gaseous fuels with predicted thermal output less than 30 kilowatts. Designed equipment will be used as a generator of flue gases with required parameters further used for experimental catalytic unit. Due to the need of draft creation inside the combustion chamber and exhaust pipe is master thesis also deals with design of ejector nozzle, which will be used for this purpose. Opening chapters of this work, considering a theoretical part, are focused on basic classification of combustion chambers and industrial burners. Next and main chapter is dedicated to main goal of this work, which is combustion chamber design, containing necessary calculations divided into balance calculation and construction design. Final chapters deals with above mentioned calculation of ejector nozzle ensuring sufficient draft and also sufficient cooling of flue gases incoming from catalytic unit.
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