The diploma thesis deals with the processing of project documentation. Specifically, the parts A, B, C, D.1.1 and D.1.3 of Annex 6 to Regulation No. 499/2006 Coll., On construction documentation, as amended by Decree No. 62/2013 Coll. The documentation refers to Multifunctional building object which contains seven apartments, space for commercial use and collective garages with automatic parking system. The plot is located in the city Hradec Králové. The building has four above ground floors and one underground floor. Apartments in second and third floor are equipped with spacious terraces which are created by decreasing of width of building. Roof is solved as walkable green roof with entrance from the staircase space. Foundations are made as concrete belts. Vertical load bearing structures are created by lime sand blocks and reinforced concrete columns. The structure of ceilings is designed as monolithic reinforced concrete with cantilevered part where thermal insulating prefabricated panels should be placed.

The diploma thesis deals with the use of waste glass powder as an aggregate in thermal insulation plasters for AAC. In the theoretical part, the problem of thermal protection of buildings is discussed first. The production and properties of foamed glass are described. Then the research of plasters, their composition and properties was made. Thermal-insulating plasters are specified and their use has been proposed for thermal insulation of building structures. In the practical part, suitable formulations have been proposed in the form of dry plaster and mortar mixtures (SOMS). Test samples were prepared from them. The physical and mechanical properties were measured. These were compared with the requirements set by standards and technical regulations. To get closer to the behavior of plasters on real buildings an AAC wall was built. The individual recipes were applied on it. It was monitored working with plaster and how it held on the masonry. During ripening crack development was observed. Optimization calculation inculded these aspects and it determined the optimal recipe. All designed recipes can be used as a thermal-insulating plasters.

This work deals with properties of electro insulating varnishes and composite materials. The general aim is to study the influence of nanoparticles on dielectric properties of electro insulating varnishes.

This master's thesis deals with the electrical insulation fluids used in electronics industry. The analysis of the current state of research and innovations in modern, biodegradable fluids in terms of their use as diagnostics. It is described by the physical nature of polarization and conductivity mechanisms, which are applied in liquids. It was compiled automated workstation for monitoring components of the complex permittivity over a wide temperature range. In the experimental part we analyzed the behavior of liquids selected alternative based on natural esters when exposed to an alternating electric field at various temperatures. Evaluated results are compared with values for conventional mineral oil.

The increasing quantity of waste represents serious environmental, social and economic problem. Wastes produced from industry and households. A large part of the economy transforms a certain amount of raw materials to waste in their production, because it is currently emphasis is placed on finding sustainable sources of raw materials. One of the suitable secondary raw materials can be discarded textiles or waste from the textile industry. These kinds of textile waste often ends up in landfills or incinerators, so it is from an ecological and environmentally advantageous to their further use. The diploma thesis deals with the study and development of thermal and acoustic insulation materials based on textile fibers. It focuses on the legislative requirements for waste management for the sorting of textile wastes and their subsequent modification before reuse. Further it contains kinds of textile fibers and bonding technologies thermal and acoustic insulation materials. Finally, an evaluation of thermal insulation, acoustic and mechanical properties of fibrous insulation materials.

En Europe, le secteur du bâtiment est le plus énergivore et représente environ 40 % de l’énergie totale consommée. A court terme, la façon la plus efficace de baisser cette consommation est de réduire les déperditions thermiques à travers l’enveloppe du bâtiment en augmentant son isolation thermique, tout en minimisant la perte de surface habitable. Dans ce contexte, les travaux de thèse portent sur l’étude et la mise au point pour pré-industrialisation de matériaux super-isolants composites à base d'aérogel de silice. Le matériau composite étudié fait partie de la famille des blankets aérogels et est obtenu via un procédé de séchage ambiant innovant. Grâce à leur faible conductivité thermique et leurs propriétés mécaniques renforcées, les blankets aérogels sont d’un grand intérêt pour l’isolation thermique qui nécessite de fines épaisseurs d’isolants. Les travaux de thèse visent dans un premier temps à effectuer une analyse des propriétés thermophysiques des blankets aérogels étudiés à la sortie du moule de fabrication et vis-à-vis de leur mise en œuvre lorsqu’ils sont soumis à différentes sollicitations (mécaniques, hygriques ...). Des travaux de modélisation du transfert de chaleur dans le blanket aérogel sont développés afin d’étudier les relations entre le transfert thermique et les paramètres morphologiques du matériau. Dans un second temps, les travaux de thèse portent sur l’étude des performances à attendre d’un système d’isolation basé sur le blanket aérogel mis en œuvre sur un bâtiment, à la fois par l’analyse du comportement thermique d’une cellule test en climat réel, ainsi que par la conduite de simulations numériques de bâtiments prenant en compte plusieurs techniques constructives, configurations de murs, et ce, pour plusieurs climats européens. Les résultats obtenus montrent que les blankets aérogels étudiés ont une très faible conductivité thermique –0,016 W.m-1.K-1– et ont un fort potentiel d’application dans l’isolation thermique du bâtiment. / Buildings are the largest energy end-use sector and account for about 40 % of the total final energy consumption in the EU-28. A short-term strategy to efficiently reduce this consumption is to decrease thermal losses through the building envelope by improving its thermal insulation, while minimizing the reduction of the available indoor living space. In this context, the thesis deals with the study and development for pre-industrialization of super-insulating composite materials based on silica aerogel. The studied material is part of the aerogel blanket family and is obtained by an innovative ambient drying process. With a very low thermal conductivity and reinforced mechanical properties, aerogel blankets are of great interest for applications where they can offer a cost advantage due to a space-saving effect. Firstly, the thesis work aims at performing analyses of the thermo-physical properties of the studied aerogel blankets at the exit of the molding and drying processes, and during application, when they are subjected to different environmental stresses (mechanical, hygric …). Heat transfer modeling is developed to study the relationship between the morphological parameters of the material and thermal transfer within it. Secondly, the thesis work focuses on the study of the expected performances of an insulating system based on the aerogel blanket, by the study of the thermal behavior of an experimental building monitored under actual climate, as well as the use of whole building energy numerical simulations taking into account several constructive techniques, different wall configurations, for various European climates. The results obtained show that the aerogel blankets studied have a thermal conductivity as low as 0.016 W.m-1.K-1 and have promising applications for building thermal insulation needs.

The subject of the diploma thesis is the elaboration of project documentation for the construction of administrative building in Brno. The main entrance to the building is oriented to the south-east. The building is L-shaped and it is designed as a two-storey, partly with a cellar. The perimeter bearing masonry of the above-ground floors is designed from ceramic blocks of thickness 300 mm and the internal bearing masonry of thickness 250 mm. After that the basement masonry is made of concrete blocks thickness 300 mm cast in concrete. Internal non-bearing masonry made of ceramic blocks thickness 115 mm. The insulation of the building is designed as a certified contact insulation system of EPS material. The horizontal bearing structures are designed as a ceramic prefabricated rib-and-filler floor with concrete grout. The stairs are designed as reinforced concrete monolithic. The roof is warm flat roof with an extensive vegetation layer.

The work description is to create a system of measures to prevent the spread and the consequent attenuation of sound in air handling systems serving the cleanrooms. The thesis presents a solution to noise attenuation in the investigated area, and in HVAC duct, which uses a commercially available material in the form of sound insulation hoses. In the systém solution is part of the work focuses on the optimal design of terminal elements to distribute air in a clean room. Processing methods utilize theoretical and experimental approach. The experiment comprises a unique analysis of the sound insulation properties of selected products under specific conditions. The data obtained are analyzed and incorporated into the framework of this work created program module for determining the attenuation and noise propagation in an enclosed space. Math and physical dependence are programmed into their own DLL by programming language DELPHI.

No description available.

This master thesis investigates a redesign for a maintenance tube, used for both sampling and draining transformer oil from a tap changer compartment. With the current design, one can do one or the other of sampling and draining. The effect of this on a transformer site during maintenance means that personnel must bring extra equipment to do the maintenance routine. Along with the extra equipment, it also involves climbing the transformer an extra time to place the equipment for draining. The project aims to address several issues in the context of the product. Redesigning the product to reduce maintenance time, and therefore downtime and electrical outages. Reducing the number of times that the transformer housing needs to be climbed in order to perform maintenance work. This with the purpose of improving working environment for maintenance personnel. With the new design of the maintenance tube, draining and sampling can be done with the same pipe without the need for extra equipment. This is through a mechanism in the tube which allows the personnel to choose whether to drain oil from the bottom of the container or to take oil samples from an area in the tap-changer housing which gives more accurate results. The function of the mechanism can be described in the same way as a pen, where if you push the button, a tube will extract itself and close of the sampling inlets, enabling draining from the bottom. Push the button again and the same tube will retract, allowing you to take samples from the appropriate area again. The new design also adheres to the dimensional requirements needed for the design to fulfil the additional functions the tube has. The project results in a design which would not only fill requirements of functions but also preserves some of the previous parts along with their interfaces. This means that the new design could be installed on current versions of tap-changer models when the next service interval is due.