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Study of thermal properties of materials for solar cells lamination
Dohnalová, Lenka ; Matiašovský, Peter (referee) ; Zmeškal, Oldřich (advisor)
The topic of presented bachelor´s thesis was study of thermal properties of materials for solar cells lamination. The main goal of this thesis was measuring and characterisation of the basic thermal properties of volume materials and plastic films, which are used to solar cells lamination. At first a thermal response to a concrete thermal pulse was measured by the thermoelectric thermometer. Then there was studied the distribution of temperature on the surface of a sample during heating and cooling by the non-point heat source. At the beggining of this thesis it was needed to define heat and ways it´s spread, then the basic thermal properties and also methods of their determination. The ways of measuring temperature were described and then used in praxis. My thesis deals with study of thermal properties volume materials. It was needed to characterize measured volume material and define it´s thermal parameters, because the values of thermal parameters of measured samples of lamination films were compared to these values. This thesis is concerned in solar cells too. So there were also described their structure, properties, utilization and way of their production. After the definition of all needed therms the experimental part of this thesis was begun. At first the thermal response of each of the eight different samples was measured by the pulse transient method. Then there was studied the thermal field on the surface of the sample by thermocamera through using the pulse transient method. Findings of both methods were finally compared.
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Vliv tepelné elektrárny na životní prostředí
Huvar, Karel
Combustion of fossil fuels in the energy sector is one of the largest sources of air pollution in the Czech Republic. This thesis describes the conversion of heat energy in coal power plant into electricity. It compares the combustion plants of solid fuel. It compares combustion of coal, biomass and solid alternative fuels. It analyzes the resulting pollution from the combustion of solid fuels and its impact on the environment. It also describes the use of cogeneration. There are mentioned the methods of disposal and elimination of harmful substances and waste products of solid fuels combustion and their use. It deals with a preview of the future of classical power engineering in the Czech Republic.
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Energy balance of household
BROM, Jiří
The name of my thesis shows it is focus on thoroughly evaluation of energy balance of households to analyse their consumption and on this basis to propose saving measures. Secondly there is explanation of concept of energy,its generation and transmission. Finaly the most important and challenging part is analysis of individual consumptions, sorting and processing the results. To obtain an overall picture there are tables with all the details.
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The different kinds of saunas and their health significance. Description and history of various types of saunas, the importance of health, indications and contraindications\\
KALÍŠEK, Bořivoj
The submitted work expertly monitors using of sauna with regard to its development in historical aspects, to the oddness depending on the geographical location and progress of using saunas in the Czech Republic. The theoretical aim of this work is focused on sauna health effect, usage of sauna as the medical rehabilitative system and its influence on particular human organs, including related percept of lows and legal enactments. The aim of practical part is to work up an educational plan of using sauna for nursery school in Vimperk starting running of sauna in school year 2010 / 2011. The next target is monitoring of sickness absence of pre-school children in consequence of respiratory illnesses, the absence of children at nursery school compared to other schools in town. This research should document (demonstrate) positive effect of regular using of sauna on children´s health, their better immunity and shorter convalescence after respiratory illnesses.
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Framework Educational Programmes and Teaching of Physics on Basic Schools
JANŮ, Jana
The thesis is divided into three parts. The first one focuses on both innovation of education and educational system in selected European countries in general. The second one deals with theoretical processing of Educational framework programme and with the way teachers and pupils react to it. The third one includes development of Educational framework programme for a particular school - Scholastic educational programme with description of basic school characteristic and characteristic of the subject of physics. It also includes a proposal of physics curriculum for 6th - 9th grade and one elaborated example of specific theme for demonstrational purposes.
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Chlazení vinutí synchronního motoru s využitím tepelné trubice
Vlach, Radek ; Ondrůšek, Č.
The paper is concerned with computational simulation of stator winding heating of synchronous machine. Software ANSYS 6.1 was used for computational modeling. Computational model consider heat pipe in the middle of winding slot. The results of computer simulation show effect of heat pipe on winding cooling. Other results show effect of heat pipe position and size of cooling surface on winding heating.
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