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Fireplace Inserts
Ptáček, Martin ; Štelcl, Otakar (referee) ; Fiedler, Jan (advisor)
The goal of this thesis is examination of automatic controller in various operating modes on fireplace inlay Venus 12.1.W. The work compares few measurement, always with measurment without automatic controller In this measurements are evaluated the emissions of CO, CO2, oxygen content in the flue duct gasses and the temperature in the flue duct are listed here and the efficiency is calculated for different operating modes. Conclusion contains overall summary of this thesis. At the end there is a search of manufacturers not only in Czech Republic
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Outdoor environment imact on indoor room quality
Zemánek, Jan ; Horák, Petr (referee) ; Rubinová, Olga (advisor)
This thesis deals with the quality of the external and internal environment and the possibility of interaction. Resolves components, pollutants and sources of pollutants that are contained in the external and internal air and thus influence around us all. The theoretical part describes the resources, limit concentration or additional filtering of the individual substances. Are summarized in detail the possibility of air exchange and ventilation in buildings intended for public gatherings. Another part of the treatment methods solve indoor environmental quality (grade of primary school) according to the changes of air flow, ventilation options and the impact of external environment on indoor air quality. It also includes a proposal for forced ventilation of the building of the school. In the experimental part, I focused on the evaluation of the concentration of carbon dioxide in the external and internal environment and the possibilities of noise pollution. In conclusion, there are variants commented and evaluated.
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Structural analysis of part of electrical machine
Fodor, Viktor ; Hájek, Vítězslav (referee) ; Janda, Marcel (advisor)
This thesis discusses the optical diagnostics of electrical motor parts using a 3D scanner. It describes the construction of electrical induction motors, their heat losses, cooling and refrigeration systems that may be used by such motors. It approaches the possibilities of heat recording and briefly explains the 3D scanner’s principal. It also introduces the simulation program ANSYS which uses the finite element method. This thesis shows the post processing of the digitalized object and the simulations and compares the simulation and measurement results. The final part is devoted to the analysis of the obtained results.
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Flow measurement of air by multiport averaging probes
Šimák, Jakub ; Uher, Miroslav (referee) ; Šedivá, Soňa (advisor)
Master work deals with the measurement of fluid flow (particularly air) pipe, with orifice and multiport averaging probe. The theoretical part is followed by practical, which verifies the properties of the measured system. In a next part of semestral work are verifies the properties of multiport averaging probes Vavra s.r.o. MQS-011 and Rosemount Annubar 485. Measured values from probes are compared.
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Study of surface tension of systems applied in ultrasonography.
Říkovská, Klára ; Pekař, Miloslav (referee) ; Mravec, Filip (advisor)
Surface tension of sonography systems was investigated using several experiments. These experiments were comprised of measurements of surface tension using BPA-800P tensiometer. The influence of surface tension of commercial substance SonoVue®, which contains in its structure two types of phospholipids, was studied more detailed. Other phospholipids were studied to comparison with SonoVue®. All substances were dissolved in saline (0,15 M NaCl). Effect of gas type on microbubbles formation and surface tension was investigated. Some samples were studied using du Nüy ring method. It was found that gas constructing the microbubbles (air or SF6) has no impact to the surface tension value. Production of foam on the surface of solutions has an impact on the value of the surface tension. This foam degreases the surface tension. Gas pressure is significant to comparison of measured data.
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The use of air as a measuring media for the detection of leaks in the automotive industry
Babický, Jan ; Kalivoda, Milan (referee) ; Dvořák, Jaromír (advisor)
This bachelor thesis deals with the attributes and usage of air, as a measurement medium for detection and verifying of the leakage range of the measured composition. The goal of this thesis is to generally learn about the detection methods of the leakage range, which are used in the broad technical praxis and about the effects, which can sometimes substantially influence this measurement. In detail, this thesis deals with methods, which use as a testing medium compressed air. The practical goal of this bachelor thesis is the comparison of the measurement methods, alternatively proposal of a new method for the detection of the leakage range of the shaft sealing of the common rail high-pressure pumps, manufactured by the company Bosch Diesel s.r.o. in Jihlava, specifically at product series CPN5.
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Tractor Engines Intake Systems Overview
Pacovský, Tomáš ; Svída, David (referee) ; Dundálek, Radim (advisor)
The main focus of this work is creation of textual and pictorial documentation of equipments used on nowadays tractor engine intake systems. Firstly author is focused on introduction of individual parts of intake system with their detail function description and pictorial documentation. After that the separate intake systems overview is made via world known tractors such as Case IH, Deutz – Fahr, John Deere, Massey Ferguson and New Holland. Every representative of tractor is introduced with its overview and pictures of the most significant parts concerned with inletting of air into the engine. The entire pictures documentation of intake systems overview is made by camera at the place of tractor’s dealer and when this photo documentation was unsatisfactory, the www pages of dealers was used. This bachelor’s thesis should show the progressive development of intake system’s individual equipments. Eventually this thesis can be used to evolve another research projects.
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Hand dryer
Stránská, Aneta ; Buganská, Tamara (referee) ; Rajlich, Jan (advisor)
The content of this bachelor thesis is design of hand dryer. The aim is create original and elegant project which will use the modern technologies to achieve high efficiency of drying and satisfy economic, ecologic and hygienic demands of the present. The design is inspired with rounded shapes that are casual at bathroom and sanitary products. Interesting is the composing of glass behind which hands are drying. Thanks to using of the newest casual technologies is dryer high function device, which dries your hands in a few moments.
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Assesment of air concentration in water depending on pressure
Uttendorfský, Petr ; Himr, Daniel (referee) ; Pochylý, František (advisor)
This bachelor thesis deals with air concentration in the water. The general conception comes from Henry's law about gas dissolved in the liquids depending on pressure. The basic derivation, the values which influence dissolvability and the Henry's Law constant´s forms are discussed here. Next part is about the usage aeration in the industry and in the construction of aeration systems. The special equipment is for realization experiment. This special equipment is gas´s accumulator based. The measured values are expressed as the tables and the graphs. The data from experiment validated the force of Henry´s Law: with growing pressure above water level, the air concentration in the water is growing too.
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