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Cloth moisture monitor
Prokop, Jan ; Jirgl, Miroslav (referee) ; Bradáč, Zdeněk (advisor)
The aim of this thesis is design and construction of cloth moisture monitor. This is the experimental device, which should be used to real time detection of urine leakage of patient and children. Principle of this device is measuring conductibility of moistured cloth. In the theoretical introduction, important methods of moisture measurement are discussed and compared in terms of cloth moisture detection. Signal processing is provided by a microcontroller, which displays humidity on the display and alerts audibly. The device is able to accurately measure humidity and allows you to set the humidity level on an audible alert.
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Sensor of condensed moisture
Krejčí, Jakub ; Havránek, Zdeněk (referee) ; Beneš, Petr (advisor)
This master thesis deals with measuring condensed moisture in constructions using measuring moisture porosity material. Market research was performed and were made sensors own construction based on capacity principle and their attributes were measured. In this thesis is also described method, which is used for calibration for conditions in building constructions causing condensation of water.
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Possibilities of utilizing lightweight autoclaved silicate based materials for insulation of building structures
Novák, Jakub ; Sedlmajer, Martin (referee) ; Zach, Jiří (advisor)
This bachelor´s thesis deals with the issue of thermal insulation for building structures using autoclaved aerated concrete on silicate based with density up to 200 kg/m3. The theoretical part presents the knowledge of the thermal protection of buildings and thermal insulation materials. Thereafter are distributed insulation systems. Production of aerated concrete and its properties is described in detail. In thesis were evaluated possibilities of use this material. The materiál is proved to be suitable for the production of thermal insulating wall, insulated foundation slabs or composite external panels. In the practical part were find out the values of physical and mechanical properties of aerated concrete product. Test results showed that the product can be used as an alternative to standard insulation systems. Component of the practical part was also to compare various insulation materials on the present market. In the conclusion is performed an overall assessment that includes the overall findings and the results.
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Determination of moisture content in electrical insulating materials
Šebesta, Petr ; Rozsívalová, Zdenka (referee) ; Frk, Martin (advisor)
This work is based on determination of moisture content in electrical insulating materials materials and ways to measure the moisture. In the theoretical section describes the methods of thermal analysis, and subsequently described in detail Thermogravimetry method, which is used in the measurement. Measurements are made using the Moisture Analyzer RADWAG 60 W/H connected with a PC, using a variety of samples from inorganic to organic. A great variety of samples was chosen because of demonstrations thermogravimetric methods and a better understanding of wetting and drying of different materials.
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Efficiency Analysis of Mechanical Redevelopment Methods with a Focus to the Problems of Joints of Inserted Materials
Mizerová, Lenka ; Tichomirov, Vladimír (referee) ; Myslín,, Jiří (referee) ; Solař,, Jaroslav (referee) ; Beneš, Petr (advisor)
Parameters that characterizes quality internal building environment come forth these days. One of the main reasons for the choice of the topic of this thesis is to ensure the quality of the internal environment and well-being during the usage of the buildings. Prevention of the excessive wall dampness is one of the basic conditions of a healthy and quality building environment. The thesis verifies reliability and compares the efficiency of the selected damp-proof materials and its joints. The first part deals with the influences that are reasons for the dampness of the buildings, earmark of an interest area, introducing of the valid legislation focused on the building redevelopment, consideration and evaluation of the building constructions in light of the dampness. The next part of the thesis sets main and partial targets and consecutive steps leading to fulfilment of the targets. Selection of the appropriate redevelopment procedures, materials and joints of the selected materials selected for the experiment realization follows. As this area is relatively large, we selected mechanical redevelopment methods reaching the walls and three most commonly used materials and its joints within the framework of the selected methods. There are three main steps set in the thesis: preparation of the methodology and experiment realization, measurement optimization and measurement within the laboratory and on the real buildings, comparison and evaluation of the measured values. Experimental part of the thesis took place between the years 2008 - 2011. Experiment realization comprises of material acquisition, building of the test samples and application of the single redevelopment measures. The next step includes measurement on the individual samples on the fixed measuring points. Measurements are evaluated through the mathematical statistical methods. Efficiency of the particular materials are compared and evaluated.
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Effect of material moisture on mechanical properties of a FDM printed part
Matějka, Tomáš ; Zouhar, Jan (referee) ; Zemčík, Oskar (advisor)
This thesis deals with the effect of humidity to the mechanical properties of 3D FDM printed parts. The aim of the thesis was to experimentally determine the rate of infulence of humidity to the mechanical properties, according to selected tests, for 3D printed parts by FDM method. Furthermore the course of air moisture absorption over time was monitored. The thesis contains description of the machines and material used. The way in which materials absorb moisture is also described here. Based on the research were selected specific materials, PLA, ABS, PETG, ASA and Nylon PA12. Tested samples were produced on a Kossel Linear Plus 3D printer from Anycubic. First experiment dealt with weight loss due to drying and the weight change due to air mositure absorption over time. This was followed by experimental evaluation of changes in tensile properties of the samples. In the next part of the thesis the change in toughness of materials was evaluated. There were made analysis of the macrostructure of the quarries for both tests. Furthermore the hardeness change was measured depending on the presence of moisture in the original samples. A microtome cut was made to analyze the results. The last part of the work was the economic evaluation of drying processes, which resulted in specific recommendations for the storage of printing materials.
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Airconditioning of the house
Milatová, Adriána ; Blasinski, Petr (referee) ; Rubina, Aleš (advisor)
The bachelor's thesis deals with the design of airconditioning devices in specific sections of the house with the swimming pool. The individual devices are designed to meet the hygienic, operational and functional requirements as demanded by the indoor microclimate of the premises. The device number 1 ensures the indoor air circulation. Coverage of heat rise in summer is ensured by the multi – split system. The device number 2 ensures moisture remove and coverage of heat loss in winter. The theoretical part of the thesis focuses on the moisture microclimate of buildings. The practical part comprises the specific proposal of two airconditioning devices for hot-air ventilation and heating of the house. The result of the thesis is the project dokumentation of two airconditioning devices of the object.
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Analysis of varnish composites properties in the course of moisture
Novák, Petr ; Frk, Martin (referee) ; Rozsívalová, Zdenka (advisor)
The presented bachelor´s work deals with preparation of micronized mica filled varnish sauples. At the same time the temperature and relative humidity influence on the electrical properties of composite material by dielectric relaxation spectroscopy method are monitoring. The composite material consists of epoxide varnish TSA 220S, which is modified with different mass percentage of micronized mica. The results of this project are frequency dependencies of real and imaginary parts of complex permitivity with the environmental temperatures and humidities parameters of varnish components.
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Study of properties of Fiber-Reinforced Polymers
Fojtášek, Martin ; Hela, Rudolf (referee) ; Bodnárová, Lenka (advisor)
Bachelor thesis deals with monitoring the properties of the FRP reinforcement when exposed to aggressive environments that cause degradation. In the theoretical part of this thesis there are described the method of production, the most commonly used types of FRP profiles, the composition of the FRP profiles, durability of FRP profiles against the action of aggressive environment and durability of the FRP material in the damage environment. Further more there are briefly described the most common types of tests on FRP profiles. In the experimental part of this thesis there are defined conditions for laboratory testing of FRP samples, which were stored in an alkaline environment at temperatures of 20 degrees, 40 degrees and 60 degrees. These samples of the FRP were stored and tested after 90 days. Subsequently there are described the changes of the physical properties of rebar in a time when saving in an aggressive environment.
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Reconstruction of the Knurr palace, Fulnek
Kvapilová, Vendula ; Cigánek, Jiří (referee) ; Novotný, Miloslav (advisor)
This diploma thesis deals with the reconstruction and rehabilitation of a real cultural monument in Fulnek. It is a four-winged object with almost rectangular atrium. The main subject of the diploma thesis is the change in the use of the building and the proposals for remediation of damp walls. Knurr's palace has three above-ground floors and is non-decked, covered by a classic shell with fiber cement. The use of the object is mainly designed as a civic amenities, now the building is not used. The building is located in close proximity to the slope and the building is adjacent to the building. The project is solved at the level of the documentation for construction.
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