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Air-condioning of lecture hall
Kaštánek, Martin ; Horák, Petr (referee) ; Rubinová, Olga (advisor)
The objective of this thesis is the design of the air-conditioning system for university pavilion. The lecture halls and foyer with attached staff section of Faculty of Business and Economics of Mendel University were dealt within the design of this building.
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Dual channel bench power supply
Stehlík, Ota ; Brančík, Lubomír (referee) ; Kubíček, Michal (advisor)
The aim of this thesis is to design and construct a two-channel bench power supply with variable output voltage in range from 0 V to 25 V with a maximum output current of 2 A. At the beginning of the thesis a general principles of power supplies are summarized. In the following section a detailed design description and simulation results of the main power supply are given. Afterwards, the design and description of auxiliary power supply with electronically controlled fan is presented. Finally, measured characteristics of the bench power supply are given.
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Thermal Calculations of Permanent Magnet Motors in High Current Technology
Deeb, Ramia ; Singule, Vladislav (referee) ; Duroň,, Jiří (referee) ; Aubrecht, Vladimír (advisor)
Práce se zabývá výpočty magnetických a tepelných vlastností servomotoru s permanentními magnety (motor M718 I vyráběný firmou VUES s.r.o. v Brně). Všechny uvedené výpočty jsou založené na numerických metodách konečných prvků a konečných objemů. 2D magnetická analýza motoru byla řešena s pomocí programu FEMM, zatímco pro 3D analýzu byl využit software ANSOFT. Magnetické analýzy umožnily stanovit rozložení magnetického pole v motoru a ve vzduchové mezeře. Ztráty způsobené vířivými proudy byly počítány v závislosti na rozměrech permanentních magnetů a velikosti toku magnetické indukce ve vzduchové mezeře. U 3D modelu v programu ANSOFT byly vypočítány i Joulovy ztráty. Pro daný servomotor byly navrženy dva způsoby chlazení. V prvním případě se jedná o vnitřní chladicí systém. K původnímu modelu motoru byly přidány některé modifikace (otvory v rámu motoru a radiální ventilátor na hřídeli uvnitř rámu motoru). U druhého způsobu chlazení bylo navrženo vnější chlazení. K původnímu rámu byly přidána chladicí žebra a radiální ventilátor na hřídeli vně rámu motoru. Výpočty proudění a tepelná analýza byly provedeny jak pro původní model motoru, tak i pro modifikovaný návrh (vnitřní a vnější chlazení) pomocí software ANSYS Workbench. Teplotní charakteristiky původního motoru byly měřeny různými senzory. Bylo provedeno porovnání experimentálně získaných výsledků s vypočteným teplotním modelem. Práce byla vytvořena v rámci doktorského studijního programu Elektrotechnika a komunikační technologie, obor Silnoproudá elektrotechnika a elektroenergetika. Podstatná část práce vznikla za podpory Centra výzkumu a využití obnovitelných zdrojů energie a výzkumných projektů CZ.1.05/2.1.00/01.0014 and FEKT S-11-9.
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Construction of turning tool with internal cooling
Matoušek, Jan ; Maixner, Vladimír (referee) ; Zemčík, Oskar (advisor)
The bachelor´s thesis is partly focused on a general overview of turning and the turning tools with internal cooling. It describes the benefits and latest developments of this section at worldwide producers. There are a solution of a proposal of turning tools with internal cooling and its technological and economic evaluation in the second part of the thesis.
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Ventilation of an office building
Hrbáček, Tomáš ; Uher, Pavel (referee) ; Rubinová, Olga (advisor)
The aim of this Bachelor Thesis titled “Ventilation of an office building“ is the design of the ventilation of an office building. The work is divided into free main parts: theoretical part, computational part and project part. The theoretical part introduces the topic of air conditioning units and their chambers. The computational part deals with the design of two air conditioning units on the 3rd floor of the office building operating a meeting room, a corridor and toilets with washing facilities. The last, the project part, describes project documentation of ventilation in depth.
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The lamination of Low Temperature Co-fired Ceramic
Hudeček, Ondřej ; Klíma, Martin (referee) ; Kosina, Petr (advisor)
Master’s thesis deals with the optimalization of low-temperature cofired ceramic lamination process that affects the final quality of 3D structures (eg., channels, cavities, membranes, etc.). The paper evaluates the influence of lamination parameters (pressure, temperature, time) on the formation of defects in the structure, which were detected by appropriate methods. The last parts describes designed and simulation cooling water system using LTCC technology.
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Extension of the production hall
Dvořák, Petr ; Rubina, Aleš (referee) ; Rubinová, Olga (advisor)
The bachelor thesis deals with the design of air-handling devices for the first floor of the production hall extension. The devices are designed to achieve operational, functional, and hygienic requirements. The changing room and sanitary facilities are warm air heated. For purposes of the showrooms is designed central air conditioning. The dining room and food preparation areas are also air-conditioned. The theoretical part focuses on the influence of the shading coefficient and direct solar radiation on the course of heat gains.
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Ventilation of an office building
Hrbáček, Tomáš ; Uher, Pavel (referee) ; Rubinová, Olga (advisor)
The aim of this Bachelor Thesis titled “Ventilation of an office building“ is the design of the ventilation of an office building. The work is divided into free main parts: theoretical part, computational part and project part. The theoretical part introduces the topic of air conditioning units and their chambers. The computational part deals with the design of two air conditioning units on the 3rd floor of the office building operating a meeting room, a corridor and toilets with washing facilities. The last, the project part, describes project documentation of ventilation in depth.
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Extension of the production hall
Dvořák, Petr ; Rubina, Aleš (referee) ; Rubinová, Olga (advisor)
The bachelor thesis deals with the design of air-handling devices for the first floor of the production hall extension. The devices are designed to achieve operational, functional, and hygienic requirements. The changing room and sanitary facilities are warm air heated. For purposes of the showrooms is designed central air conditioning. The dining room and food preparation areas are also air-conditioned. The theoretical part focuses on the influence of the shading coefficient and direct solar radiation on the course of heat gains.
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Dual channel bench power supply
Stehlík, Ota ; Brančík, Lubomír (referee) ; Kubíček, Michal (advisor)
The aim of this thesis is to design and construct a two-channel bench power supply with variable output voltage in range from 0 V to 25 V with a maximum output current of 2 A. At the beginning of the thesis a general principles of power supplies are summarized. In the following section a detailed design description and simulation results of the main power supply are given. Afterwards, the design and description of auxiliary power supply with electronically controlled fan is presented. Finally, measured characteristics of the bench power supply are given.
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