|
|
Demand controlled ventilation in buildings
Černík, Václav ; Kolbábek, Antonín (referee) ; Charvát, Pavel (advisor)
This bachelor’s thesis deals with different methods of building’s ventilation control, especially with the focus on ventilation controlled by pollutant concentration. In the first part of the thesis, some concepts regarding ventilation and some pollutant’s description are given. In the second part, the most used pollutant detectors are mentioned. Next, various ventilation control strategies are explained, along with their advantages and disadvantages. In the last part, a real-life example of ventilation control is given.
|
|
|
Heat storage in solar thermal systems
Mokriš, Lukáš ; Hejčík, Jiří (referee) ; Charvát, Pavel (advisor)
In this bachelor’s thesis are described methods of heat storage in solar thermal systems. Solar energy is retrieved in form of solar radiation, that is processed and stored in the form of sensible heat of solid materials and liquids, as heat of fusion of some material or as chemical heat, which is created during reversible chemical reactions.
|
|
|
Assessment of thermal comfort in buildings
Procházka, Aleš ; Pokorný, Jan (referee) ; Charvát, Pavel (advisor)
This bachelor thesis summarises knowleges about methods used for assessments of thermal comfort in buldings. In opening part of thesis is thermal comfort introduces as important part of overall satisfaction with indoor environment. There are also described fyziological basics and ways of thermoregulation and individual elements of thermal balance. Next part of thesis is focused on thermal and humidity factors of indoor environment. Some combinations of these factors form thermal comfort. Main part of thesis describes methods of assesments of thermal comfort using PMV and PPD indices. For practical uses there are examples of comfort diagrams, which are based on PMV index, Thermal Comfort Meter and Thermal Manikin. Last part contains description of some instruments for measurement of used physical values.
|
|
|
Hybrid ventilation in buildings
Havlíček, Jan ; Pešek, Martin (referee) ; Charvát, Pavel (advisor)
This bachelor thesis deals with hybrid ventilation in buildings. The first part of the thesis discusses ventilation, the classification of ventilation and then natural and mechanical ventilation are summarized. The second part focuses on hybrid ventilation. Here the classification of hybrid ventilation, 2 examples of hybrid ventilation in non-residential premises and 4 hybrid ventilation systems for 4 climate zones are mentioned.
|
|
|
Airflow inside of a passenger car
Bělka, Miloslav ; Štětina, Josef (referee) ; Charvát, Pavel (advisor)
This bachelor thesis deals with hearting, air-conditioning, air distribution and airflow in a cabin of a passenger car. Ventilation of the cabin is needed for acceptable level of indoor air quality. The air supplied into the cabin is conditioned by heating or air conditioning system in order to achieve an appropriate level of thermal comfort of the passengers. Various arrangements of automotive heating and air-conditioning systems are described in the thesis. The thesis also includes the description and results of a set of measurements of air temperatures and air velocities inside of a passenger car cabin.
|
|
|
Monitoring of the performance of an air-to-water heat pump under real operating conditions
Elger, Jiří ; Jaroš, Michal (referee) ; Charvát, Pavel (advisor)
he Bachelor´s thesis on „Monitoring of the performance of an air-to-water heat pump under real operating conditions“ deals with the evaluation of a heat pump operation in a family house with a subsequent finding of the dependence of the heating factor and thermal performance on air temperature. The first part is dedicated to the theory of heat pumps, their categorization and explanation of the basic concepts. Next, we compare the performance characteristics and the coefficient of performance of heat pumps from different manufacturers. In the second part we describe measurements of a real heat pump which is used in a family house, the measuring instruments used, and particular measuring procedures. The third part shows the measured values plotted on charts, the measured values are analyzed, and the heat pump is checked for its suitability.
|
|
|
Proposal nozzle for measuring the air quantity of an internal combustion engine
Esterka, Ondřej ; Charvát, Pavel (referee) ; Štětina, Josef (advisor)
In this bachelor‘s thesis are mentioned emission standards, which apply to passenger cars, and the mixture-control system. There is also a research of volumetric and sectional flowmeters, suitable for measuring the flow volume of the air, including the principle of measuring the volumetric or mass flow. After that follows engineering design of Venturi tube for measuring the flow of the air through the chosen combustion engine. The design is based on the appropriate standard. There is also involved a welded assembly drawing of the Venturi tube, and a description, how to use the tube in a test room.
|
|
|
Microbiological hazards in HVAC systems
Musil, Zdeněk ; Charvát, Pavel (referee) ; Kolbábek, Antonín (advisor)
This bachelor thesis deals with microbiological hazards in HVAC systems, especially in air condition systems. There is noted the basic information from related fields. The same microbiological hazards are divided in health risk and in microbiological corrosion. In the last part of this thesis are mentioned possibilities of their elimination and recommendation for prefiguring of them.
|
|
|
Measurement of gas flow rates
Hniličková, Veronika ; Charvát, Pavel (referee) ; Štětina, Josef (advisor)
This bachelors thesis is about options in a gas volume measurement, it's division and engineering solution of selected types of a gas volume indicators. A thesis is about analysis of measurement methods too. Finally I compare a gas volume measuring indicators, it's usage and functionality in working practicles.
|
|
|
Temperature sensors
Hlatký, Pavel ; Charvát, Pavel (referee) ; Štětina, Josef (advisor)
This work deals with questions of temperature sensors. Definition of the fundamental terms and separation of temperature sensors with electrical measured variable output according to physical principle is included. Location of technical and price optimal indoors temperature sensors are executed in the other part of bachelor’s thesis. During making this piece were used literature of temperature sensors and the internet sources.
|
guest ::
