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Air conditioning of the kindergarten
Raksová, Nina ; Uher, Pavel (referee) ; Rubina, Aleš (advisor)
The subject of this bachelor thesis is the design of an air-conditioning system in a kindergarten on the outskirts of Brno. The computational part deals with the design of air handling equipment, hot air ventilation and air conditioning. It deals with the analysis of the building, heat balance calculations, design of air flows and distribution in the designed spaces. The system is designed to meet all hygiene, operational and functional requirements and to create suitable indoor microclimatic conditions for occupants. The theoretical part of the work is focused on air filtration, air filters, pressure drops and the principle of particle separation.
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Nuclear power plant cooling and condenser design
Caletka, Aleš ; Imrichová, Anna (referee) ; Milčák, Pavel (advisor)
The presented bachelor thesis deals with the thermal balance calculation of the cooling circuit of a nuclear power plant and the design of the basic dimensions of the condenser. For the computational part of the thesis, a nuclear power plant located in the Czech Republic was considered, utilizing a cooling tower with natural draft and a water-cooled condenser. The thermal calculation was based on the parameters of the external environment - temperature, pressure, and humidity, and the steam flow, which were used to determine the parameters necessary for the condenser design - cooling water flow rate, inlet and outlet temperature of the cooling water, and pressure in the condenser. The condenser design was considered with straight tubes of 22x0,5 dimensions. Thermal and pressure losses in the condenser were neglected in the calculation. The result of the design calculation was a length of one tube of 22,8 m and a total heat exchange surface area of 88 100,436 m2. Within the theoretical part of the thesis, the technology of cooling nuclear power plants was introduced, and possible technological solutions of cooling towers were discussed.
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Biomass drying methods
Beran, Petr ; Špiláček, Michal (referee) ; Baláš, Marek (advisor)
This bachelor’s thesis deals with biomass and principle of drying solids, in next part there is a detail research of biomass dryers and final part of thesis deals with balance calculation of drum dryer and a calculation of flue gases properties.
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Gland steam system for a steam turbine
Skala, Šimon ; Šrůtek, Petr (referee) ; Fiedler, Jan (advisor)
The diploma thesis deals with preliminary design of condensing steam turbine with three unregulated steam outputs and its gland steam system particularly its description and design. The steam parameters in key outputs were determined in heat balance. The gland steam system parameters were calculated for different operating conditions. It also describes influence of pressure on performance of turbine in gland steam system. Finally, the inquiry sheet for gland steam system device was created based on calculated values.
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Ventilation of the shopping center
Šenkyřík, Adam ; Blasinski, Petr (referee) ; Rubinová, Olga (advisor)
The bachelor thesis deals with the design of air conditioning in existing shopping centre. Teoretical part describes ventilation, design of air conditioning in general and potential conception of air conditioning in shopping centres. Calculation part deals with the design of air conditioning units and related calculations. The last part consists of the project documentation.
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Oil heater design
Daxner, Ján ; Toman, Filip (referee) ; Baláš, Marek (advisor)
This diploma thesis deals with the design of heat exchangers for crude oil heating. The first part deals with the theoretical basis of heat transfer, heat exchanger properties and oil properties. In the second part, a design of two heat exchangers was developed. In the first variant, oil was placed in the pipes and steam was placed on the shell side. For the second variant, the media placement has been swapped. The design part consists of the design of the geometry of the tubes, the shell, and the baffles. Furthermore, thermal, and hydraulic calculations were performed. At the end, the proposed variants were compared, and a more advantageous design was selected.
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Condensing Steam Turbine
Víšková, Jaroslava ; Ing.Václav Urbánek (referee) ; Fiedler, Jan (advisor)
The theme of this master thesis is one body steam turbine of 150MW with reheat. There is calculated heat balance of the system with three low pressure heaters, deaerator and two high pressure heaters. Next part deals with calculation of blades and its lenght. Next are the attachments of blades into stator and rotor parts of the turbine. By the end of the thesis there is recalculation of heat balance scheme and blading followed by calculation of parameters for operation of turbine in 75% and 50% of the rated power output. The output of the whole thesis is drawing of horizontal cut of the turbine.
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Anaerobic digestion of sludge from pulp and fodder yeast production
Řezáč, Jaroslav ; Beňo, Zdeněk (referee) ; Pěček, Jan (advisor)
The thesis aims to identify suitable and in the locality available raw materials to a commnon fermentation with sludge from pulp and fodder yeast production in company Biocel Paskov a.s.. Introductory chapter briefly describes the mechanisms of penetration of the sludge itself. The following section deals with origin, chemical composition and properties of biogas. The factors affecting the production of biogas are described. A key part of this thesis is a performance of sludge fermentation test and selected mixed substrate. Acquired knowledge is evaluated and the optimum composition of input raw materials with regard to maximum, but also economic recovery of biogas selected. Further, on the basis of obtained data a rough draft of biogas station is done, icluding its energeic and economic balance.
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Bio-gas plant heat utilisation effectivity analysis
Šmarda, Marek ; Frič, Ondřej (referee) ; Pavlas, Martin (advisor)
This thesis focuses on the analysis of heat efficiency and effectiveness of the Vojtěchov biogas station unit. The material balances were developed in connection with biogas created in the cogeneration unit. The heat produced by the cogeneration unit is distributed to reactors and drying rooms. Pursuing the main goal of the thesis, the research of the complete heating balance for all months has been conducted. Additionally, a variety of options were assessed, to find the best solution of how to increase the effectivity of the heat. As for the final solution, two recommendations have been proposed in the thesis. The first recommendation lies in a better usage of low-level heat distributed to the secondary fermentor. The second suggestion deals with the amount of heat from cogeneration unit to the system. The result of the analysis is the final recommendation on how to increase the efficiency of the heat usage and potential impacts of the solution on the subsidy according to the KVET standards received in the given year.
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Air condition of cultural center
Bělehrádek, Lukáš ; Uher, Pavel (referee) ; Rubinová, Olga (advisor)
The aim of the bachelor thesis is to design an air condition of cultural center. The theoretical part describes processes of heat recovery in general, followed by description of various heat recovery ventilation systems in airconditioning. Design of an air condition for a multipurpose hall with an entrance hall and a pub is dealt with in the practical part of the thesis. The design consists of two air-conditioning units for cooling, and for warm air heating. The last part of the thesis consists of design documents for the air condition of cultural center.
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