National Repository of Grey Literature 13 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
Measurement of C-V characteristics of photovoltaic solar cells
Šťavík, Jaroslav ; Hégr, Ondřej (referee) ; Boušek, Jaroslav (advisor)
The work deals with the measurement of CV characteristics of photovoltaic cells and the consequent derivation of the free / bound charge in the volume. It also discusses factors that influence these measurements.
Electrostatic precipitator for household wood firing boiler
Preisler, Lukáš ; Skála, Zdeněk (referee) ; Brázdil, Marian (advisor)
This diploma thesis aims on the development of an experimental electrostatic precipitator for household wood firing boiler. First, a literature review was conducted, aiming on the description of the precipitator using physical relations and, on its basis, a numerical model was created. By applying the numerical model, the precipitator configuration was designed as well as the engineering design of the whole system. The chosen configuration was validated by measurement using the corona discharge starting at voltage of 6,5 kV. By applying modifications, the electrostatic precipitator was built and tested during a running boiler. Due to flue gas condensation and load, corona discharge did not initiate, and the parameters were not validated. Modifications in the construction design were suggested leading to launch the electrostatic precipitator. The main requirement is a surface finishing of wire hinging components.
The electric precipitator
Broďák, Kamil ; Patočka, Miroslav (referee) ; Huták, Petr (advisor)
The Bachelor’s thesis is focused on the issue of power separation. The first part describes the principle of power separation process. The second part deals mainly with mechanical parts and their function inside the electric precipitator. The third part focuses on the use of electrostatic precipitators and system management. The last section is devoted to design an electric precipitator according to the specified parameters. Due to the dominance of electric separators company ZVVZ-Enven Engineering, Milevsko from the Czech and Slovak Republics, the work focuses primarily on the products offered by their production program.
Product analysis of electrical discharge in mixtures of water and ethanol
Lokajová, Aneta ; Slavíček,, Pavel (referee) ; Kozáková, Zdenka (advisor)
The thesis is focused on electrical discharge in liquid solutions, in particular in ethanol solutions. In the theoretical section, the plasma is defined along with its important parameters, types of plasma generation and usage of plasma technologies. Main part is focused on the discharges in water solutions. Electric discharges in liquid solutions enable physical processes (shock waves, UV radiaton, electric current) as well as chemical ones (generation of radicals and ions). Both types of the processes are used in many fields – medicine (tool sterilization, destruction of pathogens), consumer technologies (surface adjustemen, processing of the textiles, surface clearing) of environmental protection (clearing water, decomposition of organic compounds). Goal of the thesis was to analyze discharge products on ethanol solution. Multiple samples were measured and concentration od selected products was monitored during the measurement – ethanol, acetone and acetaldehyde. PTR-TOF-MS method was used to collect and analyze the data. This method is well used thanks to quick response and immediate measurement. It produce the reset accurate enough for our purpose. It would be more efficient to use this method in combination with another analytical metohod in the future research, e.g. gas chromatography.
Electrostatic precipitator for wood firing stoves
Brázda, Kryštof ; Baláš, Marek (referee) ; Brázdil, Marian (advisor)
The presented diploma thesis deals with the design of an electrostatic precipitator for a domestic automatic wood fuel boiler. The individual chapters describe the products of the combustion process, the principles of charging dust particles, describe existing patents related to electrostatic precipitators, commercial electrostatic precipitators and the last part of the work calculates a mathematical model, according to which previously designed and evaluated separator variants were designed and evaluated. Based on the results, the optimal variant of the electrostatic precipitator designed for a domestic boiler is then selected.
Small-scale electrostatic precipitator for domestic wood-burning appliances
Kantor, Tomáš ; Baláš, Marek (referee) ; Brázdil, Marian (advisor)
Master thesis deals with design of electrostatic precipitator for domestic wood-burning appliances. In the opening chapters, principles of electrostatic precipitation are described and a study of existing electrostatic precipitators for domestic combustion devices is made. In the practical part of the thesis, a mathematical model of electrostatic precipitator was created. Based on the mathematical model, electrostatic precipitator was designed and its performance parameters predicted.
Electrostatic precipitator for household wood firing boiler
Preisler, Lukáš ; Skála, Zdeněk (referee) ; Brázdil, Marian (advisor)
This diploma thesis aims on the development of an experimental electrostatic precipitator for household wood firing boiler. First, a literature review was conducted, aiming on the description of the precipitator using physical relations and, on its basis, a numerical model was created. By applying the numerical model, the precipitator configuration was designed as well as the engineering design of the whole system. The chosen configuration was validated by measurement using the corona discharge starting at voltage of 6,5 kV. By applying modifications, the electrostatic precipitator was built and tested during a running boiler. Due to flue gas condensation and load, corona discharge did not initiate, and the parameters were not validated. Modifications in the construction design were suggested leading to launch the electrostatic precipitator. The main requirement is a surface finishing of wire hinging components.
Electrostatic precipitator for wood firing stoves
Brázda, Kryštof ; Baláš, Marek (referee) ; Brázdil, Marian (advisor)
The presented diploma thesis deals with the design of an electrostatic precipitator for a domestic automatic wood fuel boiler. The individual chapters describe the products of the combustion process, the principles of charging dust particles, describe existing patents related to electrostatic precipitators, commercial electrostatic precipitators and the last part of the work calculates a mathematical model, according to which previously designed and evaluated separator variants were designed and evaluated. Based on the results, the optimal variant of the electrostatic precipitator designed for a domestic boiler is then selected.
Small-scale electrostatic precipitator for domestic wood-burning appliances
Kantor, Tomáš ; Baláš, Marek (referee) ; Brázdil, Marian (advisor)
Master thesis deals with design of electrostatic precipitator for domestic wood-burning appliances. In the opening chapters, principles of electrostatic precipitation are described and a study of existing electrostatic precipitators for domestic combustion devices is made. In the practical part of the thesis, a mathematical model of electrostatic precipitator was created. Based on the mathematical model, electrostatic precipitator was designed and its performance parameters predicted.
Product analysis of electrical discharge in mixtures of water and ethanol
Lokajová, Aneta ; Slavíček,, Pavel (referee) ; Kozáková, Zdenka (advisor)
The thesis is focused on electrical discharge in liquid solutions, in particular in ethanol solutions. In the theoretical section, the plasma is defined along with its important parameters, types of plasma generation and usage of plasma technologies. Main part is focused on the discharges in water solutions. Electric discharges in liquid solutions enable physical processes (shock waves, UV radiaton, electric current) as well as chemical ones (generation of radicals and ions). Both types of the processes are used in many fields – medicine (tool sterilization, destruction of pathogens), consumer technologies (surface adjustemen, processing of the textiles, surface clearing) of environmental protection (clearing water, decomposition of organic compounds). Goal of the thesis was to analyze discharge products on ethanol solution. Multiple samples were measured and concentration od selected products was monitored during the measurement – ethanol, acetone and acetaldehyde. PTR-TOF-MS method was used to collect and analyze the data. This method is well used thanks to quick response and immediate measurement. It produce the reset accurate enough for our purpose. It would be more efficient to use this method in combination with another analytical metohod in the future research, e.g. gas chromatography.

National Repository of Grey Literature : 13 records found   1 - 10next  jump to record:
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