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Air Distribution in residence ventilation system
Štencel, Bedřich ; Rubina,, Aleš (referee) ; Rubinová, Olga (advisor)
My thesis is divided into three separate parts. The first part is devoted to the theoretical part of the ventilation systems. The second part deals with the determination of the conditions for a number of air exchange, a comparison of three variants of the location of air outlets in dwelling units and the application image airflow from experimental measurements on the common room. The third part is focused on the description of the experimental tasks in the laboratory at the Institute building services.
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Ventilation of classrooms at school
Kadlček, Ondřej ; Blasinski, Petr (referee) ; Uher, Pavel (advisor)
This master’s thesis deals with CFD simulation of air flow in a primary school classroom. The aim of the simulation is to evaluate the results of the proposed solution and the created other variants of air distribution with the evaluation of the proposed measures and solutions. Part of the master’s thesis is the design of elementary school ventilation systems at the level of implementation documentation.
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Ventilation of the building envelope
Šagát, Erik ; Chybík,, Josef (referee) ; Bura,, Roman (referee) ; Matějka, Libor (advisor)
The dissertation thesis is focused on non-transparent ventilated façade constructions, airflow in the ventilated cavity and the building envelope temperatures in relation with the different parameters of the construction and the ventilated cavity. The aim of this work is to optimize the temperature behavior of the building envelope during the summer season when the overheating is the most distinctive. The numerical and experimental methods with many different variants of façade constructions were used to investigation. The variants were compared and evaluated by the measured values of airflow speed in the ventilated cavity, temperature in the ventilated cavity and on the surfaces of constructions around the cavity. The result of the investigation is the evaluation of the influence of the airflow resistances or the reflectance of the surfaces around the ventilated cavity. Part of the thesis was formulated in relation with the project of MPPF - Multifunctional Plug & Play Facade during the internship at TU Graz. The efficiency of some parts of the energy active façade in this project depends on the temperature. The part of the results is the patented passive system for ventilation of building envelope and the patented cavity panel for ventilated facades.
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Energy-ekonomical evaluation, and optimization, of a family house
Rodková, Daniela ; Horák, Petr (referee) ; Adam, Pavel (advisor)
The main content of this thesis is a design and an assessment of energy-saving measures with an objective of energy economical optimization of a particular family house. The theoretical part of the thesis describes problems of the energy performance of the building. The calculating part is devoted to economical and environmental assessment of two solving options with a use of a computer program which enables a monthly calculating measure. One part constitutes a design of air-conditioning systems, heating and drawing up an Energy Performance Certificates. The part of the thesis which is focused on a computer technology application deals with energy performance optimization with a use of a program which enables a daily calculating measure and making models of pictures of flowing with a use of CFD methods.
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Air heating in the sport hall
Janková, Martina ; Ell, Jiří (referee) ; Rubina, Aleš (advisor)
The main goal of the bachelor’s thesis „name“ is designing an air conditioning device for a sport hall and its social facilities. A solution must fulfill functional, hygienic and operational requirements for the specific microclimate of sport halls. The device is designed to cover heat losses in winter as well as for cool down heat gains during summer. At the beginning a microbiological and an aerosol microclimate in an air conditioning are considered. In the next part of the thesis the required performance of the device is calculated. In the third part is the documentation of both devices is attached.
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Testing of ventilation outlets for a passenger car cabin
Dohnal, Martin ; Zaremba, Matouš (referee) ; Jedelský, Jan (advisor)
This thesis deals with experimental testing of car cabin ventilation outlets. In first part the main characteristics of air flowing are made and applied on stream from outlet. Next part deals with function and impact of car cabin ventilation system. Another part is dedicated to overview of commonly used metod of outlet testing. Research of usage of different type of outlets in mid-class cars was made. The main part of this thesis is done in final part where the testing is described by the smoke visualisation with use of laser knife and evaluation of results is performed.
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Experimental determination of the characteristics of air flow The distribution of elements
Ekl, Martin ; Rubinová, Olga (referee) ; Horák, Petr (advisor)
The thesis is aimed at the problem of the air distribution in buildings. The object of research is the concert hall. The thesis contains three different technical proposals and technical views of the microclimate concert hall. The microclimate’s solutions are focused on the air distribution in the hall. The part of the thesis is an experiment. The experiment continues on the one of the technical proposals. Its purpose is to determine the characteristics of air flowing from distribution element.
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CFD simulation of air flow inside a car cabin
Kučera, Cyril ; Elcner, Jakub (referee) ; Pokorný, Jan (advisor)
The diploma thesis deals with CFD simulating the air flow inside the car using the numerical calculation program Star-CCM+. The aim of the thesis was to prepare 3D geometry, resp. realistic model of the real car, preparing boundary conditions including material properties, simulating the steady state of the environment and evaluating the speed and temperature of the car cabin. The paper presents the results of the temperature distribution and air velocities in the cabin during the winter, spring and summer conditions in HVAC on and HVAC off modes. The monitored air temperatures and surface temperatures of the car parts are compared with the measured data. The average difference between simulation and measurement was at air temperatures of 2.3 °C and surface temperatures of 3.4 °C.
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Sensor of air velocity measurement in electrical machines
Lavička, Jiří ; Huzlík, Rostislav (referee) ; Vlach, Radek (advisor)
This thesis consists of description of design and construction of device for measuring air velocity created in it´s practical part. In introduction is mentioned basic theoretical information related to given problem, in the next chapters is descripted design and construction of measuring device along with description of calibration proces. At the end is placed chapter about testing the final device.
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Measuring of air valves and difusers
Zachoval, Matouš ; Rubinová, Olga (referee) ; Uher, Pavel (advisor)
This master thesis is focused on the issue of air distribution in residential buildings. The main part of thesis is devoted to experimental testing of diffusers by a smoke test. Achieved results are applied to design of air conditioning in passive house. Radiant heating and energy optimalization in PHPP are also proposed.
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