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Dissertations / Theses on the topic 'Chladni'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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1

Malagon, Samuel A. "Chladni Figures through Vibrating Plates." Scholarship @ Claremont, 2015. http://scholarship.claremont.edu/cmc_theses/1203.

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In this paper, we examine a method on how to model and produce Chladni Figures. We walk through how a thin metal plate, when vibrating at certain frequencies, can create various interest patterns. First we discuss the equation for the vertical force exerted on the plate, then we derive a PDE to solve for the nodal lines (lines that remain fixed, while the rest of the plate is oscillating). And, discuss how to create and model these figures, through a finite difference method. There have been several experiments on Chladni Figures, using some sort of vibrating membrane or plate and then either
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2

Silva, Halley Chaves da. "Música Cimática: processos composicionais provenientes de experiências físicas para geração de materiais sonoros." Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/8413.

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Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2018-05-02T11:59:29Z No. of bitstreams: 2 Dissertação - Halley Chaves da Silva - 2018.pdf: 6012139 bytes, checksum: eee8ec2f7253ef689d470172bbd4b7bb (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-05-02T12:56:24Z (GMT) No. of bitstreams: 2 Dissertação - Halley Chaves da Silva - 2018.pdf: 6012139 bytes, checksum: eee8ec2f7253ef689d470172bbd4b7bb (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made a
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3

Hoffman, Pavel. "Inovace žebroví kytary Dreadnought." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442572.

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This diploma thesis deals with the spectrum analysis, frequency characteristics, Chladni figures and simulation of modal and harmonic analysis of an acoustic guitar in ANSYS program interface. In the acoustic guitar analysis, various details that can influence the instrument spectrum are discussed. Especially on its performance over time, the number of generated harmonic components and their performance. Then the guitar bracing innovation of the dreadnought guitar was created from the measured, simulated and calculated data. Four acoustic guitars with the innovation were then made. These innov
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Trepka, Petr. "Chladič frekvenčního měniče tepelného čerpadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230406.

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Thesis in the introductory section describes the theory of heat pumps, the principle of their functions, including components used in pumps. The thesis includes a description of the air-water heat pump indoor unit, which also includes a frequency converter. Electronic frequency converter produces waste heat that must be cooled. The most extensive part of the work therefore deals with the computational model of heat transfer in the exchanger. The output is a map of all heat pump operating points with checking cooling efficiency of the inverter. In the final part are recommended modifications of
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5

Havlíček, Jan. "Chladič vody pro stropní chlazení." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230881.

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The topic of this diploma thesis is to design water chiller for ceiling cooling system. The thesis is divided into four main parts. The first part deals with the theoretical description of emitting cooling systems. The following part focuses on the theory of refrigerating systems and describes especially the thermal cycle and refrigerants which are used in cooling systems. In the third chapter refrigerating equipment are described. Compressor, heat exchangers and expansion valves belong to the main parts of refrigerating systems. The final chapter is devoted to the draft and selection of compo
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6

Gaverník, Michal. "Návrh zdroje chladu pro konkrétní aplikaci." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228185.

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This diploma thesis deals with design of chiller for specific aplication – The City Theatre in Brno. The solving equipment of cooling appliance includes complete design of heat exchanger, battery cold and dimensioning of pipeline system used for various media. One part of design is also choice of individual coolant pumps, which guarantee necessary cirkulation of cooling medium in a certain pipeline routes. Selected battery cold in this administration reduced the size of the necessary cooling resources, therefore the cost of implementation. Everything is processed in calculating software. The r
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7

Komárek, Luboš. "Optimalizace dodávky elektřiny, tepla a chladu pro servisní budovu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228270.

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This thesis is aimed at the optimization of electricity, heat and cold supply for a service building. The profiles of electricity, heat and cold consumptions for a specific building are incorporated in the case study. The main aim is focused on the qualification of the potential of the incorporation of technologies for energy production and conversion for the building namely the cogeneration and trigeneration technologies.
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8

Baláž, Jozef. "MODELOVANIE SYSTÉMOV VENTILÁTOR - CHLADIČ V HERMETICKEJ ZÓNE JADROVÝCH BLOKOV VVER 440 V213." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-234166.

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The topic of the thesis regards of problems of compilation the model of existing fan-cooler systems of VVER440/V213 NPP. These systems can be operated not only normal operation conditions but also during abnormal and accidental operation of the plant, which are significantly different from those operating conditions for which were systems dedicated and designed. An advanced model, compiled as one of the subjects of this thesis, capable to predict behaviour of these systems during accidental conditions of the plant, is described within this paper. The advanced model is a part of LEAKBOX model.
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9

Krobot, David. "Výběr vhodného uspořádání toku pracovních látek s laminárním režimem proudění v trubkovém chladiči." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228625.

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This master’s thesis is devoted to problematic of selection of suitable flow directions in double pipe heat exchanger. First chapter is oriented to the construction of tube heat exchangers. It is also discussed impact of construction solution to the flow character and changing of his process parameters. The difference between parallel and countercurrent flow is also occurred in this parts. The next chapter is focused to the basics of heat-hydraulic calculations of heat exchanger. This also means explanation of ways of heat transfer and heat exchanger function. There are told about specific acc
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10

Šalšová, Bára. "Komplexní hodnocení tepelně technických vlastností stavební konstrukce a zdroje tepla/chladu pro rodinný dům." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417434.

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The diploma thesis deals with overall reduction of energy use in the family house by reducing heat loss and selecting heat and cold source. In the first part are described different types of heat loss along with ways to efectively reduce each loss. Contact insulation systems are further more described, because of beeing used more often. Newer materials are also presented to readers, although their use is less common. The next chapters describe the parameters of choosed heat and cold sources. The calculating part describes process of annual power usage calculation. Further there are three desig
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Dvořák, Josef. "Zvýšení průtoku chladící vody pro absorpční chladící agregáty ve stanici zdroje chladu na JE Dukovany." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231828.

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The thesis focuses on comparison of the original and the new solutions of cooling water circuit of the York cooling units for the purpose of cooling water flow increase for the absorption units in the Dukovany Nuclear Power Plant. The individual parts of the cooling units that were changed and modified within a reconstruction are described here. The aim of the work is also to process and compare the original and the new solutions of the cooling units and the cold source station from the available measured data. The data are processed into illustrative graphs and tables. Based on the obtained d
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Gerák, Jakub. "Návrh testovacího zařízení pro statické a cyklické namáhání chladičů tlakem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232038.

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This diploma thesis describes the design of equipment for static and cyclic loading of coolers by pressure. The aim is to first identify the necessary parameters from the tested coolers. Then, based on the obtained data, design the hydraulic circuit, including the parameters of individual components and motors, followed by the design the control logic, which is required for designing the control system.
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13

Větrovec, Ondřej. "Návrh řešení chladiče elektrického komponentu automobilového světlometu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231796.

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This thesis is concerned with the cooling of electronic component. The work focuses on contemporary design of LED signal functions used in modern automotive headlamps and a on new design solution for the DRL function in the headlamp Skoda Octavia, including the use of alternative materials for cooler.
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14

Mozola, Ondrej. "Energetické nároky krytého lyžařského svahu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443197.

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This diploma thesis deals with the issue of energy requirements for operation of indoor ski slopes. The first part is dedicated to research of snow making, cooling and construction methods of ski halls along with the examples of specific projects. In the second part, the aim was to design a ski hall with specific geometry and insulation and then define energy losses of such building. Subsequently, all related energy flows were calculated, which led to the determination of the required cooling capacity. Based on this, the cooling cycle was calculated and the overall electricity demand for the o
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15

Juráš, Filip. "Kondenzátor páry." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-319685.

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The Master´s thesis is dealing with water-cooled condensers and is splitted into three main parts. The first section provides general knowledge about condensers and heat exchangers, including the basic information of hydrophobic surfaces. These surfaces were used during verifying the impact of hydrophobicity on the heat exchange in water steam. The second section describes an experimental testing. It shows the difference between hydrophobic and nonhydrophobic surfaces and their impact on the heat exchange. The third and the last part of this thesis is design and calculation of water-cooled con
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16

Kleger, Ondřej. "Zkušební stav pro zkoušení chladičů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230222.

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Emission limits and economic situation pressure automobile manufacturer, over the prospective buyer, to production more economy car. One of the elements which may indirectly reduce for example fuel consumption is automobile radiator. Construction of these accessories isn’t simple and simulation its characteristics need inspection in real measurements. Test bench for automobile radiator can help to easily choice and the project cooling system of the vehicles.
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Bastl, Ondřej. "Chladicí okruh pro formulový motor." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230484.

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Diploma thesis is focused on design engine cooling system for formula vehicle type. The aim is introduce with cooling systems of Formula Student/SAE car and competition rules. Based on the famous engine determine the initial conditions for the cooling system. In addition to design all parts of the cooling system and check affordability.
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18

Sejkora, Martin. "Řízení destilačního procesu v lihovaru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442449.

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This master‘s thesis deals with the design of a control system for a distillation column. It deals with the issue of distillate production and acquaints the reader with the necessary knowledge that is necessary to understand the purpose of the work. The practical part of the work presents a specific distillation column, the means for its control and the method of implementation of the control system, then the visualization of the control system and the method of control. Part of the work is the evaluation of the results and benefits of the work.
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Mackovík, Matěj. "Optimalizace chlazení oleje letounu VUT 100." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229449.

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The mein objective of this diploma thesis is to optimize the oil cooler of the VUT 100 aircraft, so that it complies with the CS-23 regulation and requirements of the engine producer. This is fulfilled by using of suitable oil cooler and by optimization of the air duct. Computational Fluid Dynamics approach – namely Ansys Fluent software package is used for it.
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20

Březina, Josef. "Návrh aditivně vyráběného tepelného výměníku olej-voda pro formuli student." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399336.

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Diploma thesis deals with a design and manufacture of oil cooler by technology Selective Laser Melting for Formula Student. The main goal of the design is to ensure optimal oil circuit cooling at a minimal mass. The design of manufactured oil cooler is based on a plate heat exchanger concept with optimized intakes by CFD simulations and heat exchange body with fins of thickness 0.17 mm. An analytical model was created. SLM process parameters were optimized for a thin walls printing, Subsequently, a fabrication of testing parts was finished for measuring pressure drops and performances of micro
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21

Fazekaš, Slavomír. "Návrh kanálu olejového chladiče pro modernizovanou motorovou gondolu letounu L410NG." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231663.

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This thesis describ es a design of co oling channel for the engine installation to the L-410NG aircraft. Firstly, it was compiled on the basis of analytical calculation of channel mo del and afterward underwent CFD analysis. In conclusion, the flowing of analytic calculation characteristics are compared with CFD analysis and there are also describ ed p ossibilities of flowing improvement for next channel mo dification.
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22

Tannert, Jiří. "Snížení energetické náročnosti výrobního areálu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-319688.

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The diploma thesis deals with possibilities and subsequent proposal of individual measures to achieve the reduction of energy intensity in the company fischer Vyškov, s.r.o. At the beginning of the thesis is the analysis of the current state of the areas on which the work is further focused. These include the production of compressed air, cooling technology and lighting. The main cost-saving measures for the production of compressed air is a proposal to purchase a new compressor. For cooling, there are free cooling options, including the design of a dry cooler and its inclusion in the cooling
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Kaleta, Radoslav. "Výpočetní model a analýza energeticky úsporných budov." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2019. http://www.nusl.cz/ntk/nusl-403117.

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The thesis deals with the analysis of the properties of the external and internal environment of the buildings, the possibilities of heating and cooling. The emphasis is mainly on the energy intensity and the impact of weather conditions on the building temperature during the year. The model created by UPPAAL SMC describes the behavior of heating and cooling during the year and identifies the energy demand of the given building. The building model itself can be partially modified using the built-in user interface.
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Bečka, Pavel. "Revize a návrh úprav chladícího systému smykem řízených nakladačů B861, B961." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231228.

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The object of this diploma thesis is revision of coolant system skid steer loaders “BOBEK” B861, B961 and his eventually optimization for prevention of overheating hydraulic system and engine. The first part dedicate of general issues of coolant skid steer loaders. The second part is the calculation during heat stress hydraulic systems of loader and the third part include proposals for solutions problems of overheating hydraulic systems and combustion engine.
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Sedlář, Tomáš. "Simulace odvodu tepla výkonového prvku do okolí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242159.

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The diploma thesis deals with the simulation of heat dissipation for LED Seoul SZ5-P. The heat transfer is discussed first. Further, the issue of thermal management and its design is analyzed. The dependence of LED junction temperature on area of single and double layer printed circuit board is simulated with Ansys Icepak. Additionally, influences of the number and placement of vias on the printed circuit board and aluminum substrate printed circuit board are simulated. Last but not least, the equations describing the dependence of printed circuit board area on desired LED junction temperature
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Snopek, Milan. "Řešení vybraných aspektů chlazení jatek." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226848.

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The topic of my diploma is a solution of selected aspects of cooling slaughterhouses. The main objective is the solution of mechanical cooling from the technical to the physical expression of nature and theoretical foundations comfort cooling.
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Malovaný, Daniel. "Úprava držáku celohliníkového chladiče." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230914.

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The purpose of this thesis is to overview the basic design solutions of full aluminum radiators. By finite element method to check the first generation of full aluminum low temperature radiator bracket and based on this calculation to modify the design to reduce tension in the critical areas. At the end of this thesis to evaluate the new design.
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Šebela, Kamil. "Chladící systém Formule Student." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399361.

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The thesis deals with Formula Student cooling system. The thesis is divided to three main parts, the first part deal about description of current cooling system and lubricating system. The second part of thesis deals with measuring individual component of system at measuring stand, wind tunnel and measuring at vehicle. The last part of thesis deal about evaluation of measurement and construction changes for improving parameters of the cooling system.
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Mejzlík, Michal. "Návrh a tvorba laboratorní úlohy s Peltierovým článkem." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218158.

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The introduction of this paper describes three thermoeletrical effects and their properties. It also deals with thermoelectrical cells, which are using Seebeck´s and Peltrier´s effects. The paper decribes principles how the Peltier´s cells work, their mathematical model, construction and practical use. The paper shows what kinds, shapes and output we can meet at the market and which kinds of parameters regulate their selection. The paper suggests the possibility to measure characteristic behaviour and quantity during laboratories tasks and their evaluations. At the conclusion is adduced the su
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Gančev, Jan. "Emisivita a její vliv na odvod tepla." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241160.

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This work deals with the issue of emissivity and its impact on the heat dissipation.The first part describes the basics of thermal management, the issue of emissivity and its measurement. In the second, experimental part, are dedicated the emissivity values of examined specimens. These values are then used as initial conditions for the thermal simulation. In the last part are compared the measured results and the simulated results and is evaluated the impact of emissivity for the heat dissipation.
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Géryk, Ondřej. "Tepelná čerpadla ve vzduchotechnice." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2012. http://www.nusl.cz/ntk/nusl-225664.

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This thesis deals with issues of heat pumps for air conditioning purposes. Mainly addresses itself with physical principles of heat pumps and with division of heat pumps according to natural resources, from which they draw heat energy. The next part of this thesis dedicates itself to experimental measurement of air conditioning unit, which in winter time operates on the principle of heat pump. The last part of this thesis is focused on design of two options of employment of heat pumps as sources of heat and coldness for a central air handling unit, which regulates incoming air for a dining roo
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Susna, David. "Návrh chladícího okruhu pro odvod tepla z kondenzátoru parní turbíny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378737.

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This thesis deals with the problems of wounding of low potential transferred from steam turbine condenser. First, in the theoretical part variations of steam condenser design are described. Then there is a description of variations of cooling cycles and possibilities of their operation range. In second part of the thesis there are two common cooler options chosen. Those are wet cooling tower with natural draft and dry chiller with forced draft. Two types of cooling liquid are chosen to be used for dry cooling. These are water and the other one is 50 % mixture of water and propylene glycol. Bas
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Hájek, Daniel. "Zvýšení pružnosti zážehového motoru přeplňováním." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-228975.

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The master’s thesis deals with the question of petrol engine boosting by rotary turbochargers. The objective of the thesis is to project suitable turbocharger for defined single-cylinder petrol engine. After selecting the suitable turbocharger type it will follow the construction of the computational model of the single-cylinder turbocharged petrol engine in the Lotus Engine Simulation software. In the computational model is boost pressure regulated by the turbine waste gate valve. The result will be the boost pressure values scheme for the highest possible torque so that the maximum combustio
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Loibl, Jan. "Výrobník ledu s přímým odparem." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231819.

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The theoretical part of the diploma thesis deals with introduction to the issue of refrigeration systems with thermal energy storage. Possibilities of thermal energy storage with phase change are introduced. The thermodynamic principle of functioning of the particular refrigeration system type is explained here as well as its coefficient of performance and fundamental components. In addition, several examples of ice-making systems are discussed. In the practical part the design of a particular refrigeration system is calculated. The main part of the design is the cold evaporator with direct ev
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Laga, Ondřej. "Využití termoelektrického generátoru pro zvýšení využití odpadního tepla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231965.

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This thesis deals with the problem of waste heat, namely, the exhaust gas which are not frequently used. Specifically, it is a design of thermoelectric generators set, power electronics for fan and heat exchanger proposal. The entire system uses the energy of the waste heat to increase the heating efficiency.
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Morávek, Aleš. "Hydraulický agregát pro regulaci parní turbíny." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254353.

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This diploma thesis is focused on the design of high-pressure hydraulic unit to drive a regulation of condensation turbine. The aim is to calculate all the elements of the hydraulic system, piping design and the necessary drawings. The entire assembly consists of purchased parts from other manufacturers. Major oil tank and a safety catch tank is described in detail and will be made, not bought.
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Kroupa, Petr. "Vzduchotechnika bytového domu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392206.

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The purpose of my diploma thesis is to propose the air condition to apartments. The work is divided into two parts. The first part describes the climate of the internal spaces, its forms, what it is influenced by and what way it influences the human. It analyzes natural and indoor ventilations. The second part desings air condition to concrete flat, technical report including the mechanical drawings and technical paper of used products.
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Studený, Jan. "Power - plant." Master's thesis, Vysoké učení technické v Brně. Fakulta architektury, 2015. http://www.nusl.cz/ntk/nusl-216180.

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The "POWER - PLANT" deals with the rehabilitation of the former Central Power Conversion and Dale Schoeller (Nejedly I and III) in the village Libušín Mine. Will be newly designed for building the power plant technology with progressive fluidized bed boiler to biomass steam turbine with an output of 7 MW and absorption (trigeneration) unit producing heat, cooling and electricity, which also will function as a cooler primary circuits. The source of water for the power plant will not only former mining pit Nejedlý I which is currently flooded drinking water at about 12 ° C. This system uses high
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Vaňko, Adam. "Svítidla a aplikace s Power LED zdroji." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219080.

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Progress in development of modern LEDs, their long lifetime and high luminous efficacy predetermine them for usage in lighting systems. This master's thesis examines possibilities of application of LEDs in luminaires, parameters of diodes and problems, which can appear in construction of luminaire with LED lighting source. In the practical part of this thesis a luminaire is designed, capable of illuminating traffic signs, vertical surfaces, billboards and fasades. By standards required parameters of a lighting system and adaptability of application must be considered in complex predesign. Simu
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Cielecký, Jan. "Systémy zvlhčování vzduchu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-371837.

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This diploma thesis deals with the use of adiabatic cooling for the improvement of microclimate of large-scale tents in Czech climatic conditions, specifically in city of Rožnov pod Radhoštěm. First part thesis is the design of a universal calculation tool for calculating the heat load of two types of large-scale tents. This tool was used to design and construct the suitable mobile trickle adiabatic cooler. The experimental part is focused on the finding of suitable material to be used to as filling of trickle adiabatic cooler and further testing it.
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Kubík, Roman. "Nouzový zdroj elektrické energie s termočlánkem." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217833.

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This master´s thesis is directed to an research of thermoelectric cells as power sources. It is discoursing about general properities of thermoelectric cells and their using at practical aplications in the first part. Then a heating and cooling system is designed and made for a selected type of thermoelectric cell which represents the emergency back-up power source. In the next part a DC/DC step-up converter is designed for a selected type of thermoelectric cell. This converter generates the DC load voltage 12V. The converter is controlled by PWM with a carrier frequency 50kHz.
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Najbrtová, Zuzana. "Dodávka energie pro skleníkovou produkci." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443195.

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The import of the vegetable has prevailed in the long run over the own production. In connection with this reality and increasing demand for the food with higher quality the production greenhouse is more often built. The providing heat, cold and electricity for the year-round operation is related to the construction and working of these objects. The theoretical part of this theses describes possible ways how to cover energy consumption for the model greenhouse in Kožichovice, Třebíč region. The heat losses and the year-round heat consumption were stated for the selected model and compared with
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Vydra, Tomáš. "Hydrostatický pohon pojezdu multifunkčního nakladače DAPPER." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232040.

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This thesis deals with design of hydrostatic drive for multipurpose loader and tool carrier DAPPER. At the beginning is research of different basic concepts and modern solutions to the problem, aided by a detailed description of competitive machine in the same performance category. Extensive comparison with other producers is included in the annexes to this thesis. Furthermore, a theoretical driving characteristic and its appropriateness is examined further on the basis of two model situations. The calculations of the individual components of the hydraulic circuit precedes drive kinematics ana
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Horák, Jakub. "Moderní bioplynová stanice jako součást „Smart Regions“." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232158.

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This thesis deals with the design of computational model of a biogas plant and its use in the concept of intelligent region with focusing on district heating and cooling network. The introduction contains review of technology used in the biogas plant. This review covers the description of modern biogas plants and determination of the energy and technology parameters for computational model of biogas plant. The next part of thesis describes analyze of the dynamics of the operation and the possibilities of using waste heat from biogas plant. The last and also the most important part is based on
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Fodor, Viktor. "Analýza konstrukce části elektrického stroje." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219920.

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This thesis discusses the optical diagnostics of electrical motor parts using a 3D scanner. It describes the construction of electrical induction motors, their heat losses, cooling and refrigeration systems that may be used by such motors. It approaches the possibilities of heat recording and briefly explains the 3D scanner’s principal. It also introduces the simulation program ANSYS which uses the finite element method. This thesis shows the post processing of the digitalized object and the simulations and compares the simulation and measurement results. The final part is devoted to the analy
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Vrba, Martin. "Koncepční návrh zástavby tepelného spínače do konstrukce družice." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417583.

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Tato diplomová práce je zaměřena na sestavení přehledu konstrukcí a teplených cest kosmických lodí a kosmických vozidel, které se v současné době používají. Na základě specifických požadavků a standardů jsou vypracovány koncepční návrhy zástavby tepelného spínače do konstrukce družice. V jednotlivých kapitolách jsou popsány určité členy, které se na vedení tepla podílí a jsou důležité pro navrhované koncepty z pohledu konstrukce. Diplomová práce popisuje postupy výpočtu tepelných vodivostí a rozložení působící tíhové síly do míst uchycení pro jednotlivé koncepty. Na závěr provádí hodnocení a v
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Diatel, Jakub. "Vytápění bytových domů." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392111.

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The topic of this diploma thesis is heating of apartment buildings, where an attention was focused on thermal comfort in heated rooms. The first theoretical part brings results of CFD simulations which compare radiators with floor heating. The second part consits of practical application o the given building. There are two options in this project - heating by radiators or floor heating. The third part describes two experiments - measurement of indoor environment in two rooms and measurement of gas consumption in apartment buildings with different heating concepts. In the last part the mean rad
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Komárek, Filip. "Návrh rekonstrukce stávající vstupní rozvodny a kabelové sítě 22 kV v areálu fakultní nemocnice." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377072.

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This master's thesis deals with the area hospital distribution networkand one of the hospital's entry substation. The first part of this master's thesis deals with the project of the new cable network, her gradual revival without any power outages at the collection points. Futher, in this thesis is project of temporary transformer station for supplying power during the reconstruction of the HV switchboard. Subsequently, in this thesis is project of the new HV switchboard in one of the entry substation. new HV switchgear and a new HV substation were projected. Futher, in this thesis is proposed
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Huang, Zhi-Wei, and 黃致瑋. "Exploring the Characteristics of Chladni Figures via Anisotropic Vibrating Plates." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/6pkgjb.

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碩士<br>國立交通大學<br>理學院科技與數位學習學程<br>105<br>In this thesis, the modern thin plate vibration experiment was demonstrated by anisotropic brass plate in four different cutting angles. According to the experimental results, the phenomena of asymmetry in brass plate is getting stronger from 45° to 0°, and the nodal line of the Chladni patterns are getting more circular at the same time. By utilizing the theoretical model of figure reconstruction, we could rebuild the Chladni patterns under different cutting angles via tilting the parameters and get the precise comparison between experiment and theory. O
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Teng, Yu-Chun, and 鄧宇峻. "Exploring the characteristics of Chladni figures with various granular media size via a vibrating plate." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/98647948257590435235.

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碩士<br>國立交通大學<br>理學院應用科技學程<br>103<br>The purpose of this thesis is to explore the Chladni figures which are effected by various granular media size in resonant thin plate experiment. We choose Al and brass thin plates to investigate the phenomena for representing isotropic plate and anisotropic plate respectively. We spread various sizes of granular media on these two plates to progress the vibrating thin plate experiment. The characteristics of forming the nodal figures, the pattern forming time, the ways the pattern forming and how the mass of granular media on plate play the role are the spe
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