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Design of synchronous linear motor thermal network
Čech, Jan ; Toman, Marek (referee) ; Knebl, Ladislav (advisor)
The first part of this thesis deals with the study of linear motors. The introduction of the thesis deals with the brief description of the linear motor, including its accessories. This part explains principle of linear motors, their general advantages and disadvantages. The next section contains an overview and division of the currently used linear motors. The second part deals with the theoretical description of forms of heat transfer. The third part of the thesis deals with the design of an equivalent thermal circuit model of a linear iron-core linear motor with permanent magnet. Hereafter, the proposed design will be used to calculate the temperatures of the individual motor units. The temperatures are later compared with the results obtained with finite element method.
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The Material Flow Production System Analysis and Improvement Proposals
Marešová, Petra ; Kuruc, Miroslav (referee) ; Bartošek, Vladimír (advisor)
This thesis focuses on the analysis material flow of the production system at ABB Ltd. and suggestions for improvements. The work consists of theoretical, analytical and design parts. The theoretical part contains the basic concepts of production. In the analytical part, there is described a current situation in production areas of the company on the basis of theoretical knowledge. In the final part, the solutions are designed to help improve the business.
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Automobile Charging System
Kovačík, Lukáš ; Janda, Marcel (referee) ; Hájek, Vítězslav (advisor)
This Bachelor thesis analyzes recharging systems in automobile. It explains main components of electric circuit used in automobile alternators, functions of each part of the alternator, comparison of the most common types of alternators. Main focus is to analyze and inovate the area of power losses, which determines the efficiency of each type. Final part of this thesis describes the analytical calculation of a three-phase generator.
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Analysis and Optimisation Power Parameter of Small Induction Motors
Pařízek, Jiří ; Mach, Martin (referee) ; Hájek, Vítězslav (advisor)
This thesis deals with the asynchronous engines, describes their structure, principles, properties, use, and briefly describes the design of three-phase asynchronous motor. The first section describes the most common three-phase induction motor, the emergence of the rotating magnetic field and the basic relationships. The second part deals with asynchronous motors for specific applications, their design and features. The next section is an analysis engine borrowed from the electric company ATAS Náchod, and The last section lists ways to improve the basic parameters of induction motors designed and optimized engine.
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Design of permanent magnet synchronous motor
Pavláček, Jan ; Vítek, Ondřej (referee) ; Huzlík, Rostislav (advisor)
This thesis is bent proposal synchronic motor with permanent magnets. Here are described characteristic synchronic motors, permanent magnets and possibilites construction. This thesis is sorted from common description, feature and principle function. Here are also mentioned benefits and disadvantages synchronic motors with permanent magnets. Main volume of work is proposal synchronic motor with various modifications. Proposal is realized in program Ansys Maxwell (modulus RMxpert). Engine data are entered from program Excel, where is state full calculation input and output parameters. Value is tested from [11]. Aim those work are various modification synchronic motor and his analysis.
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Steam boiler burning wood 60t/h
Umýsa, Radovan ; Baláš, Marek (referee) ; Skála, Zdeněk (advisor)
This diploma thesis deals constructional and calculation design of the steam boiler 60t/h of clean burning wood. For the parameters of the stoichiometric calculations are carried out and enthalpy calculations of combustion and air. The collected data is then made It a diagram of air and flue gas. The following are the calculations with the heat balance calculations of losses and determination of the boiler thermal efficiency of the boiler. It is made of the combustion chamber design and its thermal calculation. After determining the main dimensions of the combustion chamber moves continue the calculation of boiler heating surfaces. At the end of the calculations are controlling the overall energy balance. Boiler output parameters as temperature, pressure and quantity of the steam.
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Thermal analysis of a small induction machine
Holcman, Marek ; Toman, Marek (referee) ; Mach, Martin (advisor)
This thesis deals with the thermal analysis of a small asynchronous motor with a power of 600 W. The motor losses were determined first by the program RMxprt, and then by laboratory measurement. Temperatures in engine are calculated using the thermal resistance method. For analytical calculation of motor temperatures, a simple program was created using the Matlab computation program. Using the created program and determined losses, engine temperatures were calculated, which were then verified by measurement.
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Optimization of the permanent magnet machine based on the artificial inteligence
Kurfűrst, Jiří ; Duroň,, Jiří (referee) ; Singule, Vladislav (referee) ; Ondrůšek, Čestmír (advisor)
The dissertation thesis deal with the design and the optimization of the permanent magnet synchronous machine (SMPM) based on the artificial intelligence. The main target is to apply potential optimization methods on the design procedure of the machine and evaluate the effectiveness of optimization and the optimization usefulness. In general, the optimization of the material properties (NdFeB or SmCo), the efficiency maximization with given nominal input parameters, the cogging torque elimination are proposed. Moreover, the magnet shape optimization, shape of the air gap and the shape of slots were also performed. The well known Genetic algorithm and Self-Organizing migrating algorithm produced in Czech were presented and applied on the particular optimization issues. The basic principles (iterations) and definitions (penalty function and cost function) of proposed algorithms are demonstrated on the examples. The results of the vibration generator optimization (VG) with given power 7mW (0.1g acceleration) and the results of the SMPM 1,1kW (6 krpm) optimization are practically evaluated in the collaboration with industry. Proposed methods are useful for the optimization of PM machines and they are further theoretically applied on the low speed machine (10 krpm) optimization and high speed machine (120 krpm) optimization.
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High-speed Condesing Steam Turbine
Klíma, Petr ; Trojan, Aleš (referee) ; Fiedler, Jan (advisor)
ith one controlled extraction and one uncontrolled extraction, calculation of the flow channel at all stage, design and calculation of the regulation valve and create connection diagram of steam turbine and air cooled condenser. At the beginning of this work is an overview of manufacturers of steam turbines and their unified products. Master thesis was developer with G-Team, a.s. as using calculations and the instructions given in the recommended literature with supporting CFD simulations to determine the loss coefficients and FEA simulations to determine the eigenfrequencies blades.
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