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Design optimization of packed bed for thermal energy storage
Krist, Thomas ; Charvát, Pavel (oponent) ; Klimeš, Lubomír (vedoucí práce)
This Master’s thesis is dealing with the topic of heat exchange in a thermal energy storage unit of the type packed bed. The purpose is to describe heat transfer in a heat storage unit where hot air is flowing through that unit which is filled with stones of small diameter. This is designed in the environment of MATLAB. In the beginning, there is a brief introduction of the topic concerning heat storage and its possible use. Next, some short overview of heat transfer, types of heat transfers and thermophysical properties of the air-rock system are said. In the third chapter, the heat storage unit of type packed bed is introduced and various models and given conditions are explained. The next chapter is dealing with numerical methods, especially with the finite difference method used in this thesis. The fifth chapter is focusing on general optimization of the given heat transfer problem. A population-based metaheuristic optimization algorithm called the Genetic algorithm is described. The model setup is done in sixth chapter, as well as a presentation of results gained from MATLAB. In the last chapter, conclusions and suggestions are discussed.
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Matematický model geometrie vozovky
Krist, Thomas ; Kokrda, Lukáš (oponent) ; Porteš, Petr (vedoucí práce)
Tato bakalářská práce se zabývá modelováním vozovky. Na začátku je uveden krátký přehled z historie, která ujasňuje souvislosti historický událostí a dopravních komunikací. V další kapitole jsou uvedeny 2 modely vozovek. Jedná se o model, který svým principem připomíná metodu konečných prvků a dále geometrický model, který je popsán pomocí geometrických křivek. V této práci je kladen důraz na druhou metodu, která je detailně popsána. V kapitole 5 je nakonec sestaven model vozovky a popsán rovnicemi.
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Design optimization of packed bed for thermal energy storage
Krist, Thomas ; Charvát, Pavel (oponent) ; Klimeš, Lubomír (vedoucí práce)
This Master’s thesis is dealing with the topic of heat exchange in a thermal energy storage unit of the type packed bed. The purpose is to describe heat transfer in a heat storage unit where hot air is flowing through that unit which is filled with stones of small diameter. This is designed in the environment of MATLAB. In the beginning, there is a brief introduction of the topic concerning heat storage and its possible use. Next, some short overview of heat transfer, types of heat transfers and thermophysical properties of the air-rock system are said. In the third chapter, the heat storage unit of type packed bed is introduced and various models and given conditions are explained. The next chapter is dealing with numerical methods, especially with the finite difference method used in this thesis. The fifth chapter is focusing on general optimization of the given heat transfer problem. A population-based metaheuristic optimization algorithm called the Genetic algorithm is described. The model setup is done in sixth chapter, as well as a presentation of results gained from MATLAB. In the last chapter, conclusions and suggestions are discussed.
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Matematický model geometrie vozovky
Krist, Thomas ; Kokrda, Lukáš (oponent) ; Porteš, Petr (vedoucí práce)
Tato bakalářská práce se zabývá modelováním vozovky. Na začátku je uveden krátký přehled z historie, která ujasňuje souvislosti historický událostí a dopravních komunikací. V další kapitole jsou uvedeny 2 modely vozovek. Jedná se o model, který svým principem připomíná metodu konečných prvků a dále geometrický model, který je popsán pomocí geometrických křivek. V této práci je kladen důraz na druhou metodu, která je detailně popsána. V kapitole 5 je nakonec sestaven model vozovky a popsán rovnicemi.
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