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Assessment of the design of the new solution sliding contact in electrical machines
Záhejský, Petr ; Mach, Martin (referee) ; Veselka, František (advisor)
The thesis is devoted to assessing the concept of a new solution to the sliding contact in electrical machines. The work is focused mainly on the issue of collector engines, which are almost exclusively used in electric hand tools. Much of the work is devoted to angle grinders, which are usually used in extreme conditions and demands for seamless operation are enormous. In order partial insight into the problems in the introduction are studied phenomena acting on the sliding contact, wear and durability. Then further materials and diagnostic methods for increasing the transfer efficiency brush - commutator brush - ring. The following sections of this thesis is also considered a proposal innovated brush along with the practical verification and evaluation of the suitability of the use of innovative sliding contact.
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Separation of solid particles from biomass burning
Štěpánek, Petr ; Baláš, Marek (referee) ; Pospíšil, Jiří (advisor)
This thesis deals with aspects of the dust particles which occur in gaseous products from biomass combustion. The thesis introduces technologies by which solid particles capture from a combustion flow can be implemented. Principles and technical means of dust particles separation in mechanical separators are put in focus primarily. The thesis is concluded with a technical design of a cyclone separator.
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Analysis of the mass concentration of airborne dust in the road transport depending on traffic environment
KLÍMA, David
The name of this bachelor thesis : Analysis of the mass concentration of airborne dust in the road transport depending on traffic environment deals with measurement of mass concentration of airborne dust i places, which differed both in the amount of traffic and resources in the size of dust particles. Measurement were obtained objective information about influence of different categories of moving vehicles in road transport on air pollution by emissions from non-combustion processes.
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Assessment of methods for measuring dust emissions in livestock production
ZAHRADNÍK, Ivan
The occurrence of dust particles suspended in the air is a problem not only in increased concentration in the vicinity of human dwellings, but also for livestock. The theoretical part of this thesis is focused on the dust with a focus on current legislation and the impact on human and animal organism. Based on the robust simulation were performed dust measurements at two different commodities livestock. With impinger DUSTTRAK was detected current dust and compared according to the specified phase beem day.
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Analysis of the mass concentration of airborne dust in the road transport depending on traffic environment.
SKALIČKA, Jiří
The goal of my thesis is to measure the mass concentration of airborne dust in the road traffic, in relation to the nature of the traffic environment and transport routes. The paper provides an overview of the measured values from the individual measuring points, which differed in the intensity of traffic and the size of dust sources. Objective information are obtained with the measurements, about the actual impact of air pollution by emissions from non-combustion processes, on the movement of vehicles in road traffic.
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Comparative analysis of the regulation policies of large sources of air pollution in the Moravia-Silesia and in the Silesian Voivodeship
Děcká, Michaela ; Vojáček, Ondřej (advisor) ; Jílková, Jiřina (referee)
The aim of this thesis is to perform comparative analysis of the state policies of the Czech Republic and Poland aimed at reducing dust emissions from industrial and power generation sources of air pollution in the Moravia-Silesia and in the Silesian Voivodeship. The analysis is meant to facilitate improving the regulation requirements of these sources in both districts. The extent of regulation of the sources of air pollution in the Silesia Voivodeship influences the amount of dust emissions produced by such sources and, due the influence of the existence of cross-border transfer of emissions, this influences the concentration of particulate matter in the atmosphere in the Moravian-Silesian Region. The thesis arrives at the conclusion that the industrial and power generation sources of air pollution in the Czech Republic in the Moravian-Silesian Region faces stricter regulation requirements in comparison with similar sources in Poland in the former Silesian Voivodeship. Stricter conditions of regulation for Czech sources are the reason for the lower level of emissions and the resulting higher control costs such sources. The thesis concerns comparative analysis of the control costs a sample group of metallurgic and power generation plants in the Moravian-Silesian Region and in the Silesian Voivodeship.
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