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Thermoelectric generators and their use with renewable energy sources
Bajgl, Tomáš ; Radil, Lukáš (referee) ; Baxant, Petr (advisor)
This work revolves around the principle of thermoenergy transforming into electrical energy by using a thermoelectrical generator. It is divided into these sections – theoretical, practical and experimental measurement. In the theoretical section, each thermoelectrical phenomenon is described, the properties of various materials used for production are listed, including their electrical properties and constructions. Then the attention switches to the currently available systems. The practical section includes a design for a device, which purpose is to recharge a mobile phone by using thermoelectric generators, and that section is followed by the elaboration of the measured values.
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Temperature stabilization system
Brtáň, Filip ; Kuchta, Radek (referee) ; Kadlec, Jaroslav (advisor)
This project deals with design of universal system for temperature stabilization using a Peltier device, controlled by microcontroller. The result of this work is an autonomous equipment with automatic tuning of regulation constants, calculation of temperature stabilization limits, possibility of setting required modes and with interface for connection to PC. The regulator stabilise temperature with an accuracy of 0,1 °C within the range of temperature from 0 to 60 °C.
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Thermoelectric Generator
Kozák, Jan ; Ančík, Zdeněk (referee) ; Vlach, Radek (advisor)
This thesis describes the design and construction of a device that would allow measure the basic characteristics of thermocouples. These thermocouples are often known in the literature as TEG ( ThermoElectric Generators)
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Small Temperature Test Chamber
Wolfshörndl, Robert ; Punčochář, Josef (referee) ; Šebesta, Jiří (advisor)
This diploma thesis deals with the design of a small temperature test chamber. The first chapter is a study of temperature sensors suitable for realization of temperature chambers. The conclusion of this chapter is devoted to digital temperature sensor DS18B20. The second chapter deals with the principles and basic parameters of Peltier cells. In the third chapter design of individual electronic components of the temperature chamber is realized (circuit diagrams and PCBs), including a description of basic features of the microcontroller firmware. The fourth chapter is devoted to a description of the basic properties of the application software and a description of the communication protocol. The last two chapters deal with the construction of the temperature chamber and the results of final functional test.
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Design of analog control device for mini glasshouse
Řehák, Martin ; Lukeš, Zbyněk (referee) ; Petržela, Jiří (advisor)
Nowadays there are several options how to grow plants that do not come from our climatic belts are used to implement the greenhouses, where the artificially simulated environments, in which plants can vegetate. This work deals with the issue, plant growing in climates that are not for the plants of the rainforest, characteristic. It was necessary to create a greenhouse in which to guarantee the basic conditions for their growth. Such as humidity, temperature and lighting. He was taken into account at the design and implementation of the website.
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Thermoelectric Generator
Štetina, Jakub ; Ančík, Zdeněk (referee) ; Vlach, Radek (advisor)
This thesis describes measuring of thermoelectric modules and building of the device, which would serve as an emergency electric energy source for specific purpose on the basis of ther-moelectric effects. We use thermoelectric generators (TEG).
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Thermostat for measuring passive component controlled of AVR
Demjanics, Ferenc ; Koňas, Petr (referee) ; Roubal, Zdeněk (advisor)
The aim of this work is to familiarize with the design of the thermal test chamber to measuring passive components. Show features and involvement of selected circuits that ensure reliable operation of the device. For the realization of the role are the most important the Peltier cells and temperature sensors. But they can not work without the control unit. The control unit provides the necessary communication with each component and also with user. For this purpose we made a selection of suitable type of microcontroller and communication equipment (matrix keypad, LCD, buttons and LEDs). Subsequently was designed the algorithm to control the thermostat suitable for using in students training. The algorithm was written in the microcontroller in form of a program. There is also implemented a PSD controller in the program, which evaluates the data collected by a sensor. Then set the correct function of Peltier cells. After the thermostat was designed and realized, test measurements were performed and the results were documented and evaluated.
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Design of education model of termocycler
Smělý, Jakub ; Sikora, Michal (referee) ; Vlach, Radek (advisor)
This work describes the design of the learning model thermocycler. Measurement and control of temperature trends by measuring MF624 card and computer in real time. They are described thermoelectric phenomena associated with the operation of Peltier elements and measured using thermocouples.
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Design Thermally Insulated Chamber and Constant Temperature Regulation of Chamber
Vejnar, Pavel ; Dohnal, Petr (referee) ; Šedivá, Soňa (advisor)
The purpose of thesis is proposes a small temperature chamber with temperature control. The first part is focused on description Peltier cells, the theory of heat transfer and cooling. Next part of thesis is select suitable thermo-box and computes temperature resistance and includes simulation and real measuring. In next step is chamber simulate in program ANSYS and compare with real measuring. At the end is construct electronic control of temperature in thermo-box for constant value with programming program for the PC. The conclusion summarizes the results of the work.
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