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Energy Auditing of Building
Sýkorová, Iva ; Koňařík, Marcel (referee) ; Horák, Petr (advisor)
Master´s thesis solves problematic of energy evaluation of residential building in Kyjov. The theoretical part analyzes the legislative requirements, the practical part includes energy audit of brick residential building with 9 apartments for 18 inhabitants.
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Study of thermal insulation properties of cement concrete exposed to high temperature
Nováková, Iveta ; Sitek,, Libor (referee) ; Bodnárová, Lenka (advisor)
Master`s thesis is divided in to two parts, practical and theoretical. In theoretical part are listed basic information’s about light weight concrete, special emphasis are given to characteristic and practical application of compact light weight concrete with Liapor aggregates. In this study is described influence of high temperature on concrete structure and chemical, mechanical and physical changes, which take place during exposal to high temperatures. Further is evaluated surface permeability of concrete and addition of polypropylene fibres to concretes resistive to high temperatures. The practical part deals with design, production and testing of cement based concrete with use of different aggregates (light weight aggregates Liapor, basalt). The properties and use for applications in high temperatures is also mentioned. The influence of high temperature on strength, absorption, thermal conductivity, changes of surface permeability and degradation of testing specimens due to heat loads according to normative heat curve (ISO 834). For better transparency are experimental tests divided in to five phases and the measured values are evaluated on the end of each phase. In conclusion are resumed all knowledge’s obtained by testing and evaluated the most suitable formulation. The approach for further research is also mentioned.
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Study of applicability of suitable materials for long-term storage of heat energy
Bukvová, Veronika ; Šot, František (referee) ; Šťastník, Stanislav (advisor)
This bachelor thesis deals with appropriate ways of storing thermal energy and selection of materials for a high capacity storage unit. The thesis describes technologies currently used for long-term storage of thermal energy, structural arrangement of the thermal unit, physical properties of the materials usable for construction of high-temperature storage units and the utilization of these materials. The thesis also describes the measuring procedure of the material characteristics and the method of evaluation.
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Study of behavior of vacuum insulation panels based on hybride core insulators
Zelenka, Jakub ; Plachý,, Jan (referee) ; Zach, Jiří (advisor)
The theoretical part of the thesis covers a literature search on the topic of vacuum insulations, their composition and the possibility of replacing the used materials with natural ones. Furthermore, the theoretical part focuses on the application of vacuum insulation in the construction industry and in other areas of use. On the basis of the conducted research, the design of hybrid core insulators based on natural secondary raw materials was carried out, which could be used as a partial or complete replacement of already used materials.
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The Combustion of Organic Lightweighting Agents in the Chamotte Materials
Smékalová, Veronika ; Keršner, Štěpán (referee) ; Sokolář, Radomír (advisor)
Lightweight chamotte products are popular building material. There are many types of lightweight chamotte on the market, but the most popular lightening options are organic ingredients. This brings some problems to the production of these products. This thesis deals with the burning of various types of lighters from shards of fireclay materials. In the theoretical part are summarized raw materials, which are necessary for production of lightweight chamotte. The results of the published research studies on the topic of lightening of organic lightening products are being described here. The practical part deals with properties of products made of clay or kaolin with the addition of a certain amount of lighter. These added lighters are spruce sawdust, beech sawdust, peat, bran, paper slurry and anthracite. All these lighters are direct. For comparison, the cenospheres, which represent indirect lightweights, were also included in the research. For all specimens, the temperature interval of burnout of specimens, refractoriness, classification temperature, bulk density, thermal conductivity coefficient and other properties were defined.
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Study of the behavior of vacuum insulation based on secondary raw materials
Zelenka, Jakub ; Novák, Vítězslav (referee) ; Zach, Jiří (advisor)
The bachelor's thesis deals with an extensive literature research on the topic of vacuum insulation and their use in civil construction and other areas of application. The theoretical part is devoted to the composition of vacuum insulation and materials suitable for the production of their cores. Based on the performed research, the design of possible alternative core insulators based on natural secondary raw materials has been conducted. These can be used in the production of vacuum insulation.
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New Additional Industrial Insulation Systems for High Temperatures
Pániková, Juliana ; Kulísek, Karel (referee) ; Drochytka, Rostislav (advisor)
This bachelor´s thesis deals with the theoretical suggestion for external thermal insulation composite system with higher heat resistance. Here are briefly described appropriately selected materials with insulating properties and the most commonly used technology of prefabricated components. The practical part deals with theoretical calculations of heat transmission and suggestions for possible compositions including anchoring system and surface treatments.
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