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Influence of input materials for quality architectural concrete
Ondryášová, Veronika ; Novosad, Petr (referee) ; Hela, Rudolf (advisor)
This diploma thesis focuses on the influence of properties of feedstocks for the production of quality surfaces of architectural concrete. The introductory part describes the definition of architectural concrete with the advantages and disadvantages of its implementation. In the following chapters, the characteristics, the dosage or the chemical composition of the input materials are given. Besides the design of the mixture, important parameters for the creation of a quality surface of concrete are compaction, precise placement in formwork and subsequent treatment of the surface. Individual types of architectural concrete, their method of production with the examples belonging to concrete constructions are also given. In the practical part, 4 mixtures were designed, whose type or dosage of feedstocks was changed. In creating mixtures, emphasis was placed on minimal segregation of fresh concrete and the formation of pores on the surface of hardened concrete.
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Porovnání přístupu k bioplynovým stanicím v ČR a vybraných státech EU.
FIKAR, Miloslav
This diploma thesis focuses on biogas stations used in agriculture. The thesis is divided into two parts - the literary research and the practical part. The first part of the thesis introduces the overall description of the biogas, its production, definition, and use. Moreover, the input and output raw materials of a biogas station are described. Subsequently, the operation and the chronological procedure used during the biogas production and resulting electricity in biogas station are introduced. The practical part of the thesis focuses on the actual situation in Europe and the development of both, the biogas stations' construction and the production of electricity from biomass. This part also analyses preferred raw materials of selected countries of the EU. Electrical capacity (IEC) and a particular state subsidy policy are also mentioned in the thesis. The research also includes particular examples of a good attitude and use of biogas stations in practice. In detail, the thesis deals with how these topics are dealt with in selected countries. In the Czech Republic, Slovakia, Germany, and Poland. In conclusion, according to the ascertain data, the overall summary and prognosis for the future are introduced.
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Influence of input materials for quality architectural concrete
Ondryášová, Veronika ; Novosad, Petr (referee) ; Hela, Rudolf (advisor)
This diploma thesis focuses on the influence of properties of feedstocks for the production of quality surfaces of architectural concrete. The introductory part describes the definition of architectural concrete with the advantages and disadvantages of its implementation. In the following chapters, the characteristics, the dosage or the chemical composition of the input materials are given. Besides the design of the mixture, important parameters for the creation of a quality surface of concrete are compaction, precise placement in formwork and subsequent treatment of the surface. Individual types of architectural concrete, their method of production with the examples belonging to concrete constructions are also given. In the practical part, 4 mixtures were designed, whose type or dosage of feedstocks was changed. In creating mixtures, emphasis was placed on minimal segregation of fresh concrete and the formation of pores on the surface of hardened concrete.
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Extruze a její využití v cereální technologii
Tesař, Miroslav
The aim of study was describe the extrusion and its application in cereal technology. The study contains an overview of the normally used grains and other raw materials. There is also described the principle of extrusion technology applied to specific production conditions. With that is associated manufacturing equipment, extruders, whose parameters are also included in this work. The important part is the changes of raw materials during the extrusion process. The second part about cereal extruded products. The food market offers a wide range of extruded products. Individual products require specific manufacturing processes. This work includes a qualitative assessment of extruded products expanded of my practical own sensory evaluation extruded snacks.
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Proposal for measures to increase the efficiency of particular biogas station "Měčín" in the district Klatovy
MACH, Stanislav
The thesis is mainly aimed at agricultural biogas stations. The theoretical part is focused on agricultural biogas stations operation and the use of generated waste that is produced there. The practical part describes the economy, technology and the operation of the agricultural biogas stations Měčín. Further, the thesis suggests some measures to increase the efficiency by selecting appropriate substrates and especially the utilization of waste heat, which is not significantly used by the company.
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Proposal for measures to increase the efficiency of biogas station Obora
NOVÁKOVÁ, Renata
In my thesis, entitled "Proposal for measures to increase the efficiency of biogas station Obora" in the theoretical part deals with factors affecting the efficiency of biogas plants. The practical part focused on the specific biogas plant solves the technological and economic aspects of the station. It also deals with waste heat produced during electricity generation, feedstocks, the use of digestate and biogas station linked with the adjacent farm. The thesis also discusses the problems with which the biogas plant in Obora meets, which have significant impact on the efficiency of the biogas plant.
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