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Air - conditioning of office building
Balcar, Petr ; Košner, Jan (referee) ; Janotková, Eva (advisor)
The main goal of the submitted thesis is the design of central conditioning system used to ensure the required internal microclimate of office space and meeting rooms on the 2nd floor of office building, located in the city of Brno. The first part provides an overview of air conditioning systems and the appropriate central air conditioning system is selected. In the next part is designed the devices for air conditioning by building layout, properties of building structures, equipment and office space occupied. The work also submits drawing documentation, technical report and specification of materials used.
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Air-conditioning of office rooms
Šmejdová, Jaroslava ; Košner, Jan (referee) ; Janotková, Eva (advisor)
Diploma thesis is focused on the design and dimensioning of the central air-condition system of the offices in two-story building. The thesis consists of a theoretical part which deals with air- condition systems, and computation and design part. The computation part is comprised of calculation of quantity of ventilation air, calculation of heat losses and heat gains and psychrometric evaluation of operation during summer and winter. Design part consists of design and dimensioning of air-distriutions and air ducts and consist of design of air-conditioner and machine room. There are specification of materials and drawing documentation in the end of thesis.
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Air-conditioning and ventilation of a restaurant
Urbanová, Magdaléna ; Pavelek, Milan (referee) ; Janotková, Eva (advisor)
Diploma thesis is focused on the design of restaurant's air-condition system for 60 persons as well as air-condition system for adjacent kitchen. The work consists of an introduction to the problematic of air-condition systems and its arrangement in the project. Diploma thesis consists of two parts - computational and design. Computational part includes computations of a quantity of an aeration air, calculation of thermal losses, stress and psychrometric evaluation of operation during summer and winter. Design part consists of designing of location and slot diffuser dimensioning, design of air conduct paths, its dimensioning and calculation of pressure losses. This work also includes designing of ventilation of machine-room, selection of air-condition units and its measurement and regulation. Drawing documentation and material specifications are also part of this diploma thesis.
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Moist Air Processes in Air-Conditioning Equipment
Trepka, Petr ; Košner, Jan (referee) ; Janotková, Eva (advisor)
Bachelor thesis in the introductory part deals with the general theory of moist air, analysis of possible isobaric modifications of humid air and their representation in the h-x diagram. Bachelor thesis further contains the distribution of air-conditioning equipment, including a brief description. Thesis also includes an overview of air-conditioning systems, a description of their advantages, disadvantages and usage possibilities, focusing especially on the air system. In the final part is the dimensioning calculation of air-conditioning equipment in single-channel air system.
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Experimental Research on Aerosol Transport and Deposition in a Human Respiratory Tract
Lízal, František ; Janotková, Eva (referee) ; Adamec, Vladimír (referee) ; Jícha, Miroslav (advisor)
Human health is significantly influenced by inhaled aerosols. Insight to the aerosol transport and deposition mechanisms is a prerequisite for both, toxicological protection against harmful particles and efficient application of inhaled therapeutic aerosols. The purpose of this doctoral thesis was to gain new knowledge of this topic on the basis of in vitro measurements. Phase-Doppler Anemometry was chosen for aerosol transport measurement, for it allows simultaneous measurement of particle size and velocity. Results were processed by means of statistical methods and frequency analysis. Deposition of spherical aerosol particles was measured by Positron Emission Tomography, while deposition of fibrous aerosol was measured by Phase-Contrast Microscopy combined with automated image analysis. All experiments were performed on physical models created on the basis of the real lung geometry. New knowledge of flow characteristics, transition from laminar to turbulent flow, effect of breathing pattern or particle size on aerosol transport and deposition in human lungs are outcomes of this work. Significant effect of the oral cavity was ascertained due to comparison of aerosol deposition in realistic and semi-realistic model with cylindrical smooth walls. Acquired data not merely extended our knowledge of aerosol behavior in lungs but it can also be used for validation of numerical simulations.
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Optimization of Cabin Environment in Small Transport Aircraft
Fišer, Jan ; Janotková, Eva (referee) ; Masaryk, Michal (referee) ; Patočka, Stanislav (referee) ; Jícha, Miroslav (advisor)
The thesis deals with design and optimization of environment in cabins of small transport aircrafts, especially in terms of thermal comfort and quality of ventilation. The design of air distribution systems and structural design were optimized and most important parts of cabin design with highest impact on the quality of thermal comfort and ventilation were identified based on literature research and experience of the author. The chosen modifications and their influence on the microclimate inside the cabin were investigated using the CFD model, which was validated by results obtained from measurements of flow and temperature fields in the cabin mock-up of small transport aircraft EV-55. Next optimizations were investigated: The type of air distribution system, The geometry of ducts of air distribution system, Thickness of thermal insulation and Emissivity of internal surfaces. Thermal comfort was assessed based on the methodology of the equivalent temperature and comfort zones diagram developed by H. O. Nilsson and for assessing the quality of ventilation the concept of based on index of the age of the air was used. Fifty cases were simulated in total and base of its results Modified mixing ventilation with original air ducts geometry have been evaluated as an optimum. The ducts geometry of Modified mixing ventilation system was suggested by author specially for the thesis. In combination with high thermal insulation of walls and high emissivity of the interior, then this system of ventilation ensures maximum thermal comfort and quality of ventilation for the investigated range of environmental and operational conditions.
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Modelling and Using of McKibben Pneumatic Muscle in Haptic
Kopečný, Lukáš ; Janotková, Eva (referee) ; Nevřiva,, Pavel (referee) ; Šolc, František (advisor)
This work describes exceptional properties of McKibben pneumatical muscle and introduces its state-of-the-art model. The mathematical model is extended especially in a field of a thermodymical behavior. A new model applies a method used for describing of a thermodynamical behavior of pneumatic cylinders until now. This method is significantly upgraded to fit a muscle behavior, particularly by considering a heat generated by a muscle internal natural friction. The model is than verified and discussed with a real system. The haptic part introduces a development and design of a haptic glove interface for the use in robotics, especially in telepresence, or in VR. The force and touch feedback is provided by Pneumatic Muscles controlled by an open loop algorithm using the introduced mathematical model. The design is light and compact.
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Air-conditioning of pharmacy
Martincová, Lenka ; Košner, Jan (referee) ; Janotková, Eva (advisor)
Diploma thesis is focused on air-conditioning and hot air ventilation of the pharmacy. The pharmacy is a part of a supermarket building. The pharmacy has its own engine room and air-conditioning. Solution is focused with the calculation of the flow rate, thermal losses and profit of pharmacy. Power of heater, cooler and humidifier are calculated according to psychrometric evaluation. Distribution elements and distribution of a duct are designed according to the flow rate of air. Total pressure losses in the duct are calculated according to the distribution in the conclusion. Units are designed for hot air ventilation and air conditioning and the engine room. In appendix there are calculations of thermal losses and gain, output from programme of CLIMACAL, drawing documentation and material specifications.
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Air-conditioning of office rooms
Šmejdová, Jaroslava ; Košner, Jan (referee) ; Janotková, Eva (advisor)
Diploma thesis is focused on the design and dimensioning of the central air-condition system of the offices in two-story building. The thesis consists of a theoretical part which deals with air- condition systems, and computation and design part. The computation part is comprised of calculation of quantity of ventilation air, calculation of heat losses and heat gains and psychrometric evaluation of operation during summer and winter. Design part consists of design and dimensioning of air-distriutions and air ducts and consist of design of air-conditioner and machine room. There are specification of materials and drawing documentation in the end of thesis.
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