National Repository of Grey Literature 35 records found  beginprevious16 - 25next  jump to record: Search took 0.00 seconds. 
Porovnání koncentrace emisí tuhých znečišťujících látek z rozdílných technologií velkochovu drůbeže
FARA, Radek
Topic of this thesis is comparsion of emission concetration of solid pollutants in intensive poultry farming with different technologies. Measurement was done in cage system and two alternative poultry housing systems in company International poultry testing based in Ústrašice. For measurement of dust particles was used measurement device DUSTTRAK II 8530, own measurement has been done continuously for 24 hours with record every 3s. Dustiness was tracked in size fraction PM10. This dust particles can negatively influence health of employees and reared poultry. By measuring and following evaluation was found, that lowest value of dust particles was achieved in cage housing system. Considering health protection of employees and requirements for poultry wellfare is necessary keep dustiness of stable enviroment on lowest level.
Emissions of solid pollutants
Strnad, Ondřej ; Lisá, Hana (referee) ; Baláš, Marek (advisor)
The thesis deals with issue and properties of solid particles of anthropogenic origin. It describes the principles and technologies for removing them from the flue gas flow and avoid-ing leakage into the atmosphere. It focuses on types of separators, especially mechanical sepa-rators. The work includes an experimental part involving obtaining data characterizing the cyclone separator.
PM Exposure in Climbing Gyms: Case study of two climbing walls in Prague
Bartošová, Nikola ; Bendl, Jan (advisor) ; Makeš, Otakar (referee)
This thesis deals with the issue of high exposure of dust particles PM10, PM2.5 a PM1 in two specific climbing gyms in Prague. The source of these particles is linked to the use of magnesia alba that the climbers use to dry up the skin of their hands. The thesis analyzes the expected correlation between the dust particles concentration and the current number of visitors of the climbing gym. The dust particles are proven to have a negative effect on the health of individuals. The dust particles measured in this thesis are able to penetrate the respiratory tract. The size segregated aerosol was measured using DustTrak DRX. It is a laser nephelometer. In one of the gyms, a gravimetric analysis was performed, using a Harvard impactor that measures the PM10 concentration. All measurements were performed within the period of 20.4.2016 -5.2.2017. In the climbing center Mammut, the PM10 exposure was measured at 0,125 - 0,167 mg*m-3 , which could quadruple in the most frequented time periods. The climbing gym SmíchOFF measured the maximum levels of PM10 at 0,368 - 0,901 mg*m-3 . Both climbing centers exceeded the average daily imission limits for PM10 and PM2.5. From the health perspective, it is recommended to prevent such high exposure levels or lower the concentrations in the climbing gyms by suitable...
Degradation of insulating materials due to foreign particles
Hoferek, Jiří ; Hájek, Vítězslav (referee) ; Veselka, František (advisor)
The work is devoted to the influence of dust particles on the operation of rotating machines with sliding contact. In the work are described and characterized dust particles from environment of selected machines. Their influence on sliding contact and influence on the insulation system of these machines is investigated.
Posouzení faktorů ovlivňujících koncentraci prachových částic při lisování píce
ŠŤASTNÝ, Vladislav
The objective of this diploma thesis is to assess the factors affecting the concentration of dust particles during forage pressing. For this purpose, five presses for square bales and five presses for round bales were selected. They were harvesting different kinds of straw. Thanks to measurement using an aerosol monitor, the concentration of dust particles during the harvest was detected. The measured values were evaluated and the amount of concentration of the dust particles between the square and round bale presses was compared. There were also set the methodological steps of the measurement procedure.
Posouzení faktorů ovlivňujících koncentraci prachových částic při sklizni píce
MACH, Milan
This diploma thesis deals with the concentration of dust particles during harvesting of forage, namely hay, straw and fed forage. The measurements were always carried out on another land in the Vysočina Region. DUST TRAK II 8530 instrument was used to measure dust concentration. Each measurement was performed for ten minutes.
Temperature and humidity measuring station for Ionmeter
Kadaňka, Karel ; Roubal, Zdeněk (referee) ; Szabó, Zoltán (advisor)
This bachelor’s thesis describes the design of meteorological station of Ionmeter. Meteorological station is controlled by the Arduino platform, which evaluates the measured data and sends them wireless into the initial concept of Ionmeter. In the first part, the particular measured variables (temperature, humidity, pressure, carbon dioxide concentration, UV radiation and amount of dust particles) are described. It also describes the brief principle of the formation of air ions and their influence of the human organism. The following chapters are dedicated to the description of each component, the description of the weather station program and the initial concept of Ionmeter. The last chapter describes the construction of the meteorological station itself.
Verification of emission class of solid fuel boilers
Skoupý, Jan ; Štelcl, Otakar (referee) ; Baláš, Marek (advisor)
This thesis is focused on verifying of emission class of solid fuel boilers. The boilers are described from principle of combustion process in the beginning. The second part divide and describe solid fuels which are intended to burn in these boilers. The third part deals with requirements of legislation of the Czech Republic and European Union. The last part verifies this requirements on the selected solid fuel boiler.
Měření emisí pevných částic u vznětových motorů rozdílných emisních kategorií EURO
KAHUDA, Jan
This bachelor thesis deals with the issue of pollution of the environment by emissions of dust particles produced by engines of cars and also deals with the measurement of the concentration of dust particles emitted in the exhaust gases of diesel engines meeting the different EURO emission categories. Dust particles greatly pollute the environment and endanger human health as well as the lives of other animals and plants. The aim of this work was to find out the difference in the producing of dust particles in the exhaust gases of passenger car's diesel engines that meet the different emission EURO standards. Measurements were carried out using experimental preparation of own production - the measuring station. The dust particles concentration measurement was performed on four diesel engine passenger cars that meet the EURO 1, EURO 3, EURO 5 and EURO 6 emissions standards and while idling. The measuring device DUST TRAK 8530 from the TSI Incorporated company was used for measuring.
Emise tuhých znečišťujících látek v chovech drůbeže
FARA, Radek
This bachelor thesis is focused to monitoring concentrations of the dust particles in the object of laying hens meat-type. Measurement took place in company international poultry testing based in Ustrasice. In this object was monitored fraction of particulate matter size PM10 . These particles can have a negative impact on worker's health and on breeding poultry. Own measurement was done by DUSTTRAK II 8530 Measurement was carried out continuously in a period of 24 hours with a recording interval every three seconds. After analyzing monitored values it was found that the values of dust particles from the housing meat-type hens were not in the hall in Ustrasice exceeded. It is desirable levels of dust particles to the maximum extent possible to eliminate.

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