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Vliv komunální techniky na životní prostředí
VOZÁBAL, Václav
This bachelor work is focused on communal technology from the perspective of its impact on environment and noise pollution. Communal technology is in this case understood as brush cutter, drum chipper and riding mower. The primary aim of this work is the practical measurement of the noise in different locations. In this bachelor work, I focused on the choice of stations, which were suitable for measuring of the noise and also for the measuring near the source of the noise. After the detailed measurement of the noise, I subsequently carried out the calculation of the equivalent level of the noise, the lowest and the highest acoustic pressure. All the data, which I gained, are transferred to graphs and tables. The final values are compared to hygienic limits of the sheltered exterior areas and evaluated according to the valid legislation.
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Noise emissions in farming chickens for fattening
STEJSKAL, Jiří
The thesis is focused on the sources of noise in agricultural operations in terms of noise emissions. Agricultural operation in this case was a hall for fattening chickens for meat. The main goal is practical to measure all sources of noise generated during the various operations fattening. The work was primarily necessary to choose suitable habitats for measuring noise sources and measurements of climatic conditions. Followed by calculation of equivalent noise levels and evaluation under applicable legislation. As part of the work was proposed noise protection measures, which would partly help reduce the impact of noise emissions.
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Transmission of sound pressure from a static source of sound
KAMARÝT, Jan
I chosed a packing machine as a static source of the sound for my mesurement of sound pressure. The machine was located in a potato warehouse owned by Agricultural company of Čechtice. At the first time I described the packing machine and then I described the entire packing process for better imagination how this machine works and where were the acoustic emissins coming from. The first practical part of this thesis was measuring sound preassure levels near around the machine and at the operator position. The second part of measuring was at the operator position and in some other places. This measurement took eight hours in each spot. Then I calculated equivalent values from the numbers and I measured and compared them with hygienic limits. I found out that there was no need to take steps to reduce noise, because the machine didn´t exceed the noise level.
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Agricultural operations and their impact on the environment
BÁRTŮ, Lukáš
The thesis focuses on agricultural activities in terms of their noise influence and impact on the environment. Agricultural activities are in this particular thesis biogas plant, dryer of agricultural commodities and stable of young cattle. The aim of the thesis is the noise measurement in different areas at two different seasons vegetation season and non-vegetation season. The thesis focused on selection of appropriate locations for measurement, noise measurement nearby to the noise polluting source, noise pollution by the nearest habitation and measurement of climatic conditions. These measurements were followed by the calculation of equivalent noise level and their evaluation according to the legislation. Based on the gathered data and carried calculation it could be concluded, that the noise pollution of the agricultural activities in only contribution to the current noise pollution level. However gathered do not show values which would be significantly close to the hygienic noise limits for protected outdoor areas. In the thesis, there were also suggested noise reducing corrective actions, which could partly eliminate the noise pollution from agricultural activities.
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The noise of a harvest line during cereals harvest
BÁRTŮ, Lukáš
The thesis focuses on harvest of cereals in terms of noise pollution. Sources of noise during harvesting are harvest line (combine harvester), manipulation equipment transporting harvested grain (tractors with trailers) and in some cases harvesters straw (tractors with collectors). The main aim of this work is to measure noise at harvest on the outskirt of the crop land. In this work I focused on the selection of suitable observation post, measurement of noise pollution of particular agricultural machines, background noise measurement and evaluation of climatic conditions. Furthermore, acquired data are used for equivalent noise level calculations and evaluation against current legislation. Based on the data analysis can be concluded that noise pollution during harvest does not negatively impact its surroundings, therefore there is no need for any action to reduce noise exposure.
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The noise analysis of selected school objects the South University
NAVRKALOVÁ, Renáta
This thesis contains the noise analysis of inside selected objects the South University depend on environment, type of transport routes a vehicles, which moved on this routes. It concerns for example cars, trucks, busses and motorcycles. Based on measured values, there is a summary the results of noise in the individual measuring places. Afterwards, there are suggested ways of appropriate noise reduction, but in this cases only if it?s necessary. The object of this work is the pointing out potential excessive noise suggesting some possibilities of its removal at the measured places.
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Analysis of transport noise device on the transport environment.
KDOLSKÝ, Tomáš
This thesis contains the noise analysis of transport vehicles as cars, trucks, cargo sets, busses and motorcycles in relation of the kind of the transport environment, but also on the character of the transport routes. There are very important factors here and namely the kind of passing vehicles, the number of passing vehicles, the speed of the vehicles, weather conditions, road surface and road condition. Following to this analysis there is a summary of the results detected, which is mainly focused on the level of noise emissions in the individual measuring places. Afterwards, there are suggested ways of appropriate noise reduction. The object of this work is the pointing out potential excessive noise suggesting some possibilities of its removal at the measured places.
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A Biological Noise In The Environment of Farms Breeding Dairy Cows.
DVOŘÁK, Miroslav
In stockbreeding of farm animals implicates a noise not only an implementing and increasing mechanization, but as well as a noise incurred by animals themselves. It means a noise rising by speech of breeding animals (a biological noise). The aim of this work is measuring of this noise on a family farm in Olešnice, work it up according to appropriate standards and demonstrate the results graphically. Obtained noise rates are reviewed in term of legislative and hygienic regulations and orders.
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