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A demonstration lab for building ventilation
Kundrát, Roman ; Štětina, Josef (referee) ; Charvát, Pavel (advisor)
Objective of this thesis is the design of ventilation system for demonstration laboratory. Based on literature studies, experience and advice of experts is at work introduced the concept of design of ventilation equipment for laboratory, which will serve to demonstrate the air inlet into the room using different diffusers. Introduction of distribution elements for ventilation, priors the actual design of laboratory.
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Warm Air Heating
Bečica, Radek ; Košner, Jan (referee) ; Janotková, Eva (advisor)
The introduction describes the basic information about warm air heating and general recommendations for using this type of heating. The next chapter contents a summary of the advantages and disadvantages of warm air heating. The following chapters deal with the main elements of the whole system. There is also pointed out the difference between radiant and convective heat transfer. At the end of this thesis there is shown an overview of warm air heating systems used for last years. Last part tells about prospects of warm air heating according author’s opinion.
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Comparison of noise generated by differently constructed vents
Bernard, Jan ; Doložílek, Miroslav (referee) ; Jedelský, Jan (advisor)
This diploma thesis deals with comparing noise levels of three side vents of different constructions, which are used for distribution and directing of ventilation air in a cabin of an automobile. The fundamental knowledge of the physical and physiological acoustics is described in the introduction part of this study. Following the introduction part there is a brief explanation of the car air conditioning system (HVAC system) as well as are explained the acoustic properties of specific elements of this system. The study also deals with dividing ventilation vents and describes the vast traceable types of automobile vents. Prior to the description of the experiment, which was conducted as a part of this study, the procedures and results of the measurements carried out in other theses are explained. Measurement of noise levels of the compared vents was carried out in a semi-anechoic chamber under the ČSN ISO 3475 standardization. To clarify increase of noise generated by the vent in an interior of an automobile, additional measurement of noise was carried out in a cabin of Porsche Cayenne 2018. From the gathered results we can conclude that under the constant flow, (of 60 square meters per hour) louder vents are those with higher pressure loss. This pressure loss is dependant primarily on the speed of the flow in the vent, as well as on the number and the adjustment of the deflectors. In a cabin of an automobile, the noise produced by the vent is negligible in comparison with total noise in an interior of a car. However, in the area surrounding the air flowing out from the vent, (approximately 0,7 meters from it) the level of acoustic pressure increases significantly.
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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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Comparison of noise generated by differently constructed vents
Bernard, Jan ; Doložílek, Miroslav (referee) ; Jedelský, Jan (advisor)
This diploma thesis deals with comparing noise levels of three side vents of different constructions, which are used for distribution and directing of ventilation air in a cabin of an automobile. The fundamental knowledge of the physical and physiological acoustics is described in the introduction part of this study. Following the introduction part there is a brief explanation of the car air conditioning system (HVAC system) as well as are explained the acoustic properties of specific elements of this system. The study also deals with dividing ventilation vents and describes the vast traceable types of automobile vents. Prior to the description of the experiment, which was conducted as a part of this study, the procedures and results of the measurements carried out in other theses are explained. Measurement of noise levels of the compared vents was carried out in a semi-anechoic chamber under the ČSN ISO 3475 standardization. To clarify increase of noise generated by the vent in an interior of an automobile, additional measurement of noise was carried out in a cabin of Porsche Cayenne 2018. From the gathered results we can conclude that under the constant flow, (of 60 square meters per hour) louder vents are those with higher pressure loss. This pressure loss is dependant primarily on the speed of the flow in the vent, as well as on the number and the adjustment of the deflectors. In a cabin of an automobile, the noise produced by the vent is negligible in comparison with total noise in an interior of a car. However, in the area surrounding the air flowing out from the vent, (approximately 0,7 meters from it) the level of acoustic pressure increases significantly.
|
|
|
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.
|
|
|
A demonstration lab for building ventilation
Kundrát, Roman ; Štětina, Josef (referee) ; Charvát, Pavel (advisor)
Objective of this thesis is the design of ventilation system for demonstration laboratory. Based on literature studies, experience and advice of experts is at work introduced the concept of design of ventilation equipment for laboratory, which will serve to demonstrate the air inlet into the room using different diffusers. Introduction of distribution elements for ventilation, priors the actual design of laboratory.
|
|
|
Warm Air Heating
Bečica, Radek ; Košner, Jan (referee) ; Janotková, Eva (advisor)
The introduction describes the basic information about warm air heating and general recommendations for using this type of heating. The next chapter contents a summary of the advantages and disadvantages of warm air heating. The following chapters deal with the main elements of the whole system. There is also pointed out the difference between radiant and convective heat transfer. At the end of this thesis there is shown an overview of warm air heating systems used for last years. Last part tells about prospects of warm air heating according author’s opinion.
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