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Mobile belt conveyor
Tenora, Jiří ; Škopán, Miroslav (referee) ; Jonák, Martin (advisor)
The aim of this work is to design a mobile conveyor belt to brown and black coal. The thesis contains a theoretical part, which describes all the components of the conveyor belt further functional calculations according to ISO 5048, the calculation of the performance conveyor, conveyor overall dimensions, the design of the drive, the tensioning device, strength calculation of selected parts and undercarriage.
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Non-energy uses of lignite
Zedníčková, Petra ; Taraba, Boleslav (referee) ; Pekař, Miloslav (advisor)
This bachelor thesis is focused on the meaning of coal and it's utilize. It is especially concentrated on lignit and it's utilize out of energetic sector. Lignit constitudes geologicly youngest type of coal and belongs to caustobiolits , which is solid with various degree of coalification of original phytomasa. Degree of coalification is situated between peat and lignit. Lignit is characteristic by clearly well-kept structure of wood. Exactly this relative youth of lignit is reason for it's interesting qualitative indexes, in which belongs especially it's natural sorptive ability and quite high volume of humic acids. Both of these characteristics cohere together, because humic substances will certainly be main reason for sorptive characteristics. Coal, in comparing with other natural material, is by it's structure very complicated mixture of both organic and inorganic substances in various states of matter. It is matter of heterogenous system of macromolecules, which is structured of microscopicly distinguishable and chemically various substances. It can be composed of organic components or work as mineral admixture.
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Boilers for solid fuel
Hotový, Michal ; Štelcl, Otakar (referee) ; Baláš, Marek (advisor)
The task of this bachelor thesis is write up a research about solid fuel boilers and describe solid fuels. In second part of bachelor thesis I make an experiment. I measure an emission and efficient burning wood and coal.
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Development of structural concrete with power plant ash
Ťažký, Martin ; Sokol, Pavel (referee) ; Hela, Rudolf (advisor)
Worldwide production of concrete is increasing, what has a negative environmental load of cement production. That is due to effort in building construction, also concrete production, greater use of the secondary raw materials. Fly ash is the most commonly used secondary raw material. His used has a very good impact on the economy and ecology of production and positively affects on the properties of concrete in both the fresh and hardened state. The aim of this bachelor's thesis was to improve its use in concrete, using a minimum void fraction of dry mix cement-fly ash.
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Boilers for house heating
Grepl, Martin ; Štelcl, Otakar (referee) ; Baláš, Marek (advisor)
This bachelor thesis deals with the issue of small boilers for solid, liquid and gas fuels for heating houses. Its introductory part describes types of fuels, their basic classification, characteristics, and environmental impact during combustion. Various types of boilers suitable for domestic heating are described in its second part. It shows classification according to the type of combustion fuel, advantages/ disadvantages, and also basic parameters of these boilers. The last part of this thesis focuses on calculation of selected boilers in terms of their parameters and cost.
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Belt conveyor for transport of pit cole
Kostelník, Jan ; Kubín, Martin (referee) ; Škopán, Miroslav (advisor)
The goal of my bachelors thesis themed Belt Conveyor for Transport of Pit Cole with maximal granulity 45mm was to design technical concept with: functional concept, calculation of main proportions, design of engine and solidity calculation of the parts which the supervisor told me. The camber of belt conveyoris 12m and land lenght is 45m. Next make: general assembly drawing including prefabricated structure, assembly drawing of straining machinery and next assemblies and next drawings by the instructions of supervisor.
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Solid fuels boilers
Sitek, Tomáš ; Kracík, Petr (referee) ; Baláš, Marek (advisor)
This bachelor thesis is focused on solid fuel heating of a detached house. The first section describes most common solid fuels, their composition, characteristics and combustion principle. Following section is about solid fuels boilers with their operation description and most common designs and types. In the end economic and user aspects of four selected boilers are described, such as acquisition and operation costs, operation comfort etc. The resulting graph of total costs over fifteen years can be used for general comparison of selected boilers.
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