National Repository of Grey Literature 866 records found  beginprevious21 - 30nextend  jump to record: Search took 0.01 seconds. 
Control system for equipment using renewable energy sources
Novotný, Jan ; Bradáč, Zdeněk (referee) ; Benešl, Tomáš (advisor)
The work deals with design of power and control electronics for water micro source in island network. In the general part the readers are acquaints with the issue of renewable energy sources and describes commercially produced micro sources. The practical part deals with the design of its own control system and power electronics using its own control system or PLC for water micro source. The microcontrollers were used for the implementation of the control system, for which the program part was created.
Vertical worm conveyor
Sordyl, Martin ; Pokorný, Přemysl (referee) ; Malášek, Jiří (advisor)
The aim of this thesis is realization of functional calculation, design creation of vertical worm conveyor according to required parameters and consideration of transported materials. Here is realized calculation of main parts of the conveyor, approximate transport performance, design of propulsion, gear, conjuction and regulatory unit, emplacement of worm and strength control of functional parts of the machine. This thesis is composed of technical report and drawings.
Control of HVAC equipments
Zaoralová, Kateřina ; Weiglhofer,, Willy (referee) ; Rubina, Aleš (advisor)
The aim of the diploma thesis is application of the topic Control of HVAC equipments. The thesis is divided into three part – A, B, C. The first theoretical part deals with controlling/regulation in general, it focuses on controlling/regulation of HVAC equipments and it describes ways of air volume flow measurement, which relates to the third experimental part. The second part is focused on design of HVAC system in inpatient ward and fit-out for employees. In the third part was realized verification of air flow volume controller in two chosen buildings, whence in one there weren´t fulfilled manufacturer´s requirements and in the second one they were fulfilled. In conclusion there were compared measured values.
Nonlinear Control of Complex Systems by Utilization of Evolutionary Approaches
Minář, Petr ; Ošmera, Pavel (referee) ; Oplatková,, Zuzana Komínková (referee) ; Matoušek, Radomil (advisor)
Control theory of complex systems by utilization of artificial intelligent algorithms is relatively new science field and it can be used in many areas of technical practise. Best known algorithms to solved similar tasks are genetic algorithm, differential evolution, HC12 Nelder-Mead method, fuzzy logic and grammatical evolution. Complex solution is presented at selected examples from mathematical nonlinear systems to examples of anthems design and stabilization of deterministic chaos. The goal of this thesis is present examples of implementation and utilization of artificial algorithms by multi-objective optimization. To achieve optimal results is used designed software solution by multi-platform application, which used Matlab and Java interfaces. The software solution integrate every algorithms of this thesis to complex solution and it extends possible application of those approaches to real systems and practical world.
Steam turbine
Čípek, Petr ; Škorpík, Jiří (referee) ; Fiedler, Jan (advisor)
The aim of the thesis is to design a high-speed steam turbine as a small energy source. Steam turbine consists of a high-pressure, a medium-pressure and a low-pressure part with a removable condensing module. High-pressure part is designed to perform a single-stage radial turbine with axial steam outlet. The work also includes the layout of the modules and sections. To design individual parts are used steam table „X-steam“.
Project of the photovoltaic system
Ševčíková, Kateřina ; Půčková, Helena (referee) ; Kotlík, Josef (advisor)
The diploma thesis deals with elaboration of project solar thermal and photovoltaic solar systems for all-season service. The theoretical part focuses on the general description of the solar thermal and photovoltaic systems, legislation of renewable sources in the Czech Republic and the status of photovoltaics in the Czech Republic. The experimental part deals with the design of measures for energy saving by using solar energy systems. These measures are proposed for construction of houses in Podolí u Brna, especially on extra-family house. The aim of the work is to make a proportioning, choosing the right parts and calculating the economic and ecologic balance. Finally, thesis gives recommendations for further action in saving energy in houses in Podolí u Brna.
Street Lighting Control
Kořenek, Jan ; Krbal, Michal (referee) ; Štěpánek, Jaroslav (advisor)
This bachelor thesis deals in a theoretical part with the origin of the light, his features and lighttechnical quantities. There are also characterized light sources, which are currently most used to control street lighting. There are further described basics of the street light and currently most used ways of street lighting control. Further part of this thesis is focused on practical control of different types of light sources and monitoring their parameters, such as luminous flux, power, efficiency or correlated colour temperature during voltage reduction. These light sources are high pressure sodium lamps, halogenid lamp, fluorescent lamp and high pressure mercury lamp. Main conclusion from measurements are several cross characteristics, where is possible to monitor behavior of the parameters during voltage reduction. The last part concerned about practical street lighting control in Bezděkov, which is a village located near Havlíčkův Brod. There was connected the dimmer. On the street was created net of points according to the standard. In these points were measured illuminance for voltage 230 V and then for lower voltages 210 V and 190 V. These values were processed and average and minimum value was compared with the value defined in the standard.
Design of DC motor drive for 3D printer stepper motor drive replacement
Králík, Jan ; Spáčil, Tomáš (referee) ; Chalupa, Jan (advisor)
The subject of this thesis is to create a module for control DC motor using signals which are used to control a stepper motor. The module will be implemented into existing 3D printer. This work also includes testing of a new drive and its comparison with the prior stepper drive. The thesis also contains comparison of performance of both drives in terms of quality 3D printing.
Implementation of PSD controller into microcontroler MCF52233
Lang, Stanislav ; Holek, Radovan (referee) ; Macho, Tomáš (advisor)
The goal of my bachelor thesis is the project and realization of a digital regulator, including the possibility of user’s settings. The first two chapters, which present a theory and a survey of the problem of digital regulation, offer an introduction as far as the used hardware (32-bit microcontroller M52233 from the company Freescale) is concerned. The main part of my thesis deals with the description of concrete implementation of regulation algorithms into the selected hardware as well as the communication with the regulation unit and the selection and basic configuration of the peripheral used.
Cascade Boiler Houses of System Regulation
Smola, Vojtěch ; Rubinová, Olga (referee) ; Formánek, Marian (advisor)
This bachelor’s thesis is about designing cascade of condensing boilers and regulation for four storey house with unheated basement. Cascade consists of three condensing boilers that are controlled by the three-zone weather-compensated control. Heating systém is controlled via shung circuit with electronically controlled mixing valves. The heating system is designed to ensure the smooth function of the heating systém and the boiler operates as the largest part in condensing mode. In this thesis were designed mixing control units and control valves to operate across the range. The proposed heating system meets the requirements for housing corresponding to European standards.

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