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Energy optimization of the administrative building
Černý, Tomáš ; Horák, Petr (referee) ; Adam, Pavel (advisor)
The diploma thesis deals with the energy audit of administrative building. In the theoretical part I described the heat pumps. In a calculated part I proposed austerity measures and created of them saving variant. I chose the most suitable variant and assess it from an economic and ecological point of view. In the third part, I use the calculation program to optimize the building.
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Hydraulic cylinder
Černý, Tomáš ; Kozák, Jiří (referee) ; Klas, Roman (advisor)
Bachelor thesis contains a brief description of the principle of operation of hydraulic motors, their use and computational relations. The main part of the research is devoted to hydraulic cylinders, their principle of function, division and construction. Also, a space for calculating the buckling stiffness of the piston rod is given. The next part deals with mathematical modeling of hydraulic mechanisms. A simple mathematical model is created in the case of a hydraulic cylinder with two identical piston rods and in the case of a differential piston. Based on the model, graphs of the frequency of oscillation are plotted. The possibilities of influencing the frequency of oscillating are explained by changing the parameters of the cylinder.
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Electronic Flight Bag for IPad
Černý, Tomáš ; Dittrich, Petr (referee) ; Chudý, Peter (advisor)
This thesis deals with the EFB systems, its standards, types and modes of operation. It describes the design and implementation of an Apple iPad application, intended to be used as an EFB by the Czech general aviation pilots. The real utilization of such application allows for simplification of the preflight check and safe execution of flight while removing the usual load of paper documents from the cockpit. This is achieved through a SW im- plementation of operationally attractive functions. It could be for example: searching in regulations and pilot's handbooks, acquisition and viewing of meteorological informations and recent changes in air traffic, interactive calculation of important parameters or flight navigation.
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Verification of geometry influence on dynamic properties of immersed body
Černý, Tomáš ; Pochylý, František (referee) ; Habán, Vladimír (advisor)
Immersion of the body into the fluid creates additional effects which must be considered when designing the machines. Additional effects from the fluid influence the dynamic properties of the body. In this work the decrease of the natural frequency and the increase of the damping ratio during the gradual immersion of the body into the fluid are investigated. Diploma thesis is based on an experiment, which is performed on a series of flat strip steel components of various widths. The first three bending and first three torsion shapes of the free-hanging body are examined. Emphasis is placed on the influence of part width. In the next phase of the experiment, the influence of the proximity of the solid wall to the dynamic properties of the cantilever beam is examined. Further, the determination of the added density from the fluid is performed by modal analysis using the ANSYS software.
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Heating of the kindergarten
Černý, Tomáš ; Topič, Jan (referee) ; Počinková, Marcela (advisor)
The bachelor thesis solves the design of the nursery heating. The theoretical part deals with the topic of floor heating. The calculation part contains the design of heating the building using hot-water underfloor heating. Further solves the calculation of hot water exchanger for forced ventilation of selected rooms. The air-water heat pump is designed as the heat source. Part of the calculations is also the preparation of hot water and all the necesary equipment of the system. Kindergarten is designed as a nearly zero-energy building.
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Shielding and detection of neutrons
Černý, Tomáš ; Šťastný, Ondřej (referee) ; Katovský, Karel (advisor)
The master’s thesis provides an overview of available neutron sources in terms of neutron yields and energy spectrum of emitted neutrons. Reactions of neutrons with matter, especially neutron scattering and radiation capture, are described. The possibilities neutron neutron detection and spectrometry are also described. The following experiment deals with a design of suitable shielding materials and the analysis of the moderated energy spectrum of neutron flux. The properties of the neutron field were measured using detection by activation. Subsequently, a simulation of the problem was performer in the MCNP program. In the end, the achieved results are compared and evaluated.
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Tool for Designing the NCF Tags on Android
Černý, Tomáš ; Zachariáš, Michal (referee) ; Maršík, Lukáš (advisor)
This thesis follows up a wireless technology called NFC, its support on the Android and its use in practice. It describes the design and implementation of the application, which is able to handle own NFC tags, including their creating, editing, erasing and interpretation. The real use of NFC tags consists in speed-up and automation of common tasks and actions, which we often do on Android-powered mobile device. It could be for example: changing of settings, changing of ring profile, controlling hardware, launching applications, initializing a call, sending messages and so on.
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Operation of embedded cable lines into HV distribution grid
Černý, Tomáš ; Wasserbauer, Vojtěch (referee) ; Ptáček, Michal (advisor)
The thesis focuses on a section of cable line inserted into overhead high voltage power line. The essence is a description of the benefits, risks and impacts of the operation of such sections in terms of protection, transition processes. etc. The thesis also includes economical comparison of an acquisition and operating costs of both overhead and cable line. The topic of this thesis was given by ČEZ Distribuce a.s.
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Motivy spotřeby alkoholických nápojů u českých spotřebitelů
Černý, Tomáš
Černý, T. Motives of alcohol beverages consumption of Czech consumers. Diploma thesis. Brno: Mendel University, 2023. The diploma thesis deals with the motives of alcohol beverages consumption in the Czech Republic. The main objective is the identification of consumer behav-iour in connection with the alcohol beverages consumption. Using secondary data, the thesis evaluates the state of consumption in the world and in the Czech Repub-lic. The questionnaire survey and the testing of the dependence of qualitative characteristics were used to find out the motives of alcohol beverages consump-tion and for the consumer segmentation. Recommendations for the consumption reduction were based on the information found.
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