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Heat exchanger design
Skalický, Vojtěch ; Lachman, Jakub (referee) ; Baláš, Marek (advisor)
This bachelor's thesis deals with the design of a heat exchanger for water – air media. In the first part, the principle of the heat exchangers function and the basic division of heat exchangers are mentioned. Subsequently, an overview of frequently used heat exchangers working with liquid – gas media is presented. Design variants, types of ribbing used and operating conditions are discussed. Design variants, fin types used and operating conditions are discussed. In the second part, the design of the exchanger itself, which includes the choice of geometric dimensions and thermal and hydraulic calculation of the exchanger, is already processed. At the end of the thesis, the obtained results are evaluated. The work also includes the basic drawing documentation of the designed heat exchanger.
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Hydraulic losses of electric inverter coolers
Sněhota, Daniel ; Kracík, Petr (referee) ; Toman, Filip (advisor)
This bachelor's thesis compares two electric inverter heat sinks with the same geometry but manufactured using different technologies. The first part briefly discusses the categorization of heat exchangers. The second part describes the differences in the manufacture of the heat sinks: one through milling and the other through SLM 3D printing. Subsequently, the achieved surface roughness of both heat sinks is measured using a microscope. Finally, pressure loss in both heat sinks is measured, and the acquired data is evaluated. These results enhance our comprehension of the impact of manufacturing technology and surface roughness on pressure loss in small heat sinks.
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Optimization of Thermally Activated Building Structures
Oravec, Jakub ; Kalousek, Miloš (referee) ; Čekon, Miroslav (referee) ; Šikula, Ondřej (advisor)
The thesis deals with the modelling, analysis and optimization of thermally activated foundation piles using the in-house developed numerical software Epile. A sensitivity analysis of short energy piles was performed and a deep regression neural model was developed to predict the energy gain of the pile. A Bayesian optimization method was implemented to find the optimal parameters of the energy piles in order to maximize the financial and energy gain.
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Low temperature heat exchanger
Křivánek, František ; Toman, Filip (referee) ; Hejčík, Jiří (advisor)
The aim of this work is to design a low-temperature heat exchanger for a lyophilization device. The theoretical part of the work includes a basic description of lyophilization technology, a literature review of heat transfer at low temperatures with a focus on suitable construction materials and heat transfer fluids, and an overview of utilized heat exchanger designs. The practical part of the work deals with the actual design of the heat exchanger for indirect cooling in two variants, one of which utilizes a direct vaporization system of the heat transfer fluid, while the other focuses on purely liquid cooling.
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Production process optimization
Habásko, Jakub ; Koška, Petr (referee) ; Fiala, Alois (advisor)
HABÁSKO Jakub: Production process optimization. The Master´s thesis of Master degree, second grade, school year 2008/2009, FME Brno University of Technology, Institute of Metrology and Quality Assurance Testing, October 2009, pages 68, pictures 40, tables 2, supplements 4. The project elaborated in frame of the Master degree, study branch Metrology and Quality Assurance Testing. This Master´s thesis deals with optimization of process plan. In virtue of submission was created an analysis present condition using of statistical methods and it was created suitable statistical methods applicable in production organization. Then is here described the problem of brazing bells, because in this place is originating the most of uptightness. Then the thesis brings recommendation and findings, which can help with optimization this process.
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Feedwater heater design
Holčapek, Josef ; Tomáš,, Zdeněk (referee) ; Skála, Zdeněk (advisor)
This diploma thesis deals with the design of a feedwater heater. The aim of the work is to perform thermal, hydraulic and stress analysis. A preliminary technical documentation is also part of this work. The first part contains a summary of basic types of heat exchangers and processes of heat transfer. The main part is focused on thermal analysis to determine the main parameters of the heat exchanger. Next part is followed up by hydraulic analysis to determine the pressure drop of the heating water. After that is created design of heat exchanger with stress analysis of the proposed wall thicknesses of the shell, water chambers and tubesheet. Achieved results are summarized and evaluated at the end of the diploma thesis.
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The issue of energy-efficient home heating
Kollár, Ľubomír ; Hrnčířová, Michaela (referee) ; Baláš, Marek (advisor)
Low-energy houses are becoming more common and requested. The Bachelor's thesis focuses on heating and ventilation of low-energy houses. The beginning chapters describe and explain basic principles of these buildings and basics of air-handling and heating systems. The main part of the work overviews contemporary heating and ventilation systems while pointing out their advantages and disadvantages. The work includes a design of heating and ventilation of low-energy house.
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Heat exchanger design
Tatýrek, Lukáš ; Kudela, Libor (referee) ; Baláš, Marek (advisor)
The designed heat exchanger is part of a cogeneration unit, which I am considering as a possi-ble alternative for acquiring electrical and heat energy during heating season. The objective is to compile research about usable heat exchangers, pick a suitable technology for flue gas water application, calculate and design a heat exchange surface, calculate pressure drops and pro-cess the enclosed drawing documentation of the heat exchanger. For calculations, the recuper-ation gasket plate heat exchanger was chosen. The design of gaskets is nonstandard as it has been made for higher than usual temperatures. The result of this work is a heat exchanger with uncommon dimensions with a very low count of plates.
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Wireless dataexchange for heat exchanger
Wojnar, Petr ; Hynčica, Ondřej (referee) ; Štohl, Radek (advisor)
The subject of this bachelor’s thesis is firstly an introduction to devices that are used for controlling the heat exchanger model, visualization and wireless data-exchange. For this purpose are used ROCKWELL AUTOMATION programmable logic controllers, ROCKWELL AUTOMATION terminal and SATEL radio modems. A schematic of the heat exchanger model is also included with description of each model part. The second part of this document is focused on the design of regulation, visualization and wireless data-exchange by means of already mentioned devices. The last part describes realization steps of controlling, creating of visualization and algorithm for wireless data transfer according to designs mentioned in the second part of this document.
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