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Biomass biolers
Maar, Tomáš ; Moskalík, Jiří (referee) ; Baláš, Marek (advisor)
This bachelor’s thesis deal with a biomass boilers. In the first part of this thesis is discribed biomass like a fuel for a boilers. Second part shortly discribes a combustion proces and possible construction these device. Main thing in this thesis is calculations a exchanger and with it nessesery calculations quantiti of air, produkt of combustion, enthalpy, calculations heat transfer surface and suggestion exchange.
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Alternative pellets production
Janíček, Jakub ; Lisý, Martin (referee) ; Baláš, Marek (advisor)
This bachelor thesis contains a review of possible technologies for the production of pellets and briquettes. Emphasis is placed on technology for the treatment of biomass for further use. Easy to biomass use is subject to the homogenization and adjusting to the wood chips, pellets or briquettes. The final part of thesis is concerned with energy and economic balance of a specific production line pellets.
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Photovoltaic, as an alternative source of electricity
Floková, Kateřina ; Baláš, Marek (referee) ; Pospíšil, Jiří (advisor)
The aim of this work is to provide a description and an explanation of the process of obtaining elektrical energy from solar radiation. There is preliminary mentioned an importance of producing electrical energy from renewable sources and development of photovoltaic systems. The body of the thesis is divided into seven chapters. At first, there is described the principle of transformation solar radiation into electrical energy. Then, the description of types of barrier-layer photocells follows. The types are divided according to their structure and material, which are they produced from. The third chapture is focused on production and construction of photovoltaic modules. Ways, how can be production of electricity increased, are mentioned in the fourth chapture. Advantages and disadvantages of solar concentrators are given there. In the fifth chapture there are described two basic kinds of connection of photovoltaic system. Different ways of taking-off produced electricity are related with those kinds of connection. The last chapture is the fundamental chapture of the thesis. There is given a project of concrete photovoltaic system. For this system is calculated economic return of investment included supposed increase of prices of electricity. In conlusion the author noticed events that would be given and emphasized the outcome of concerete project of photovoltaic system.
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Domestic heat pumps
Housírek, Jiří ; Baláš, Marek (referee) ; Pospíšil, Jiří (advisor)
The Bachelor´s thesis “Pump Heats for Heating Residential Buidings“ is divided into three parts. The first part explains the principle of pump heads, characterizes individual parts, describes interconnected relations, analyses theoretical diagram of the Carnot Cycle and division of pump heads according to sources of getting heat. The second part deals with particular type of heat consumption – water – which should be suggested for chosen residential building. Then follows a brief description of a chosen object, principal parameters of the object and interconnected summary of calculating figures and particular calculation of energetic demand of the building. The third part deals with economic analysis of a chosen system of heating and its financial return (return on investment) when two systems of heating are compared. The first one uses only gas boiler and the second one heat pump. The conclusion gives a particular evaluation of advantage of a suggested solution.
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The Primary Air Power Heat Substitution on Biofluid 100
Čukat, Stanislav ; Moskalík, Jiří (referee) ; Baláš, Marek (advisor)
Initial section of this paper discusses the basic classification of exchangers and general principles and laws of heat exchange. Second section outlines the individual types of heat exchangers, used predominantly in the power industry. The final section of the paper offers a design proposal for heat exchangers for primary air heating by waste gas energy, generated by stand Biofluid 100.
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Historical development of land assessing
Čiháková, Hana ; Dušek, David (advisor) ; Baláš, Miroslav (referee)
Graduation theses deals with historical development of land assessing from 1897 till 1994. Period is resolved into four phases i term of price making. In each phase is description of previous legislation accordance with it was assessing provided. In practical part is concrete historical land assessing. Land is situated in village Leškovice.
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Uptake and Bioavailability of Copper after Liming of Alder Plantation
Jakl, M. ; Kuneš, I. ; Jaklová Dytrtová, Jana ; Balaš, M. ; Tlustoš, P.
The availability of copper in mountain forest soil (7 years after fertilization) afforested with alder (Alnus incana (L.) Moench) was explored using the diffusive gradient in thin films (DGT) technique compared with its water soluble fraction in soil and its total content in plant compartments. DGT seems to be more promising method determining elements availability; it corresponds with total concentrations in alder tissues closely than contents in water extract. Fertilization increased concentration of Cu in the thinnest root fraction; its total amounts in other tissues of fertilized alders were significantly higher than in the control.
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