|
|
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.
|
|
|
Stanovení emisí tuhých znečišťujících látek v chovech drůbeže
MAŠEK, Jiří
This bachelor´s thesis focuses on problems with a concentration of dust participles in poultry farming, specifically broiler farming. Data for this study were collected by taking measurements in The Cooperative Farm Batelov. DustTrak II 8530 monitored dust participles for 24 hours every 2 seconds. The measurement was done during the third and the last week it means the fifth week of poultry´s fattening.
|
|
|
MMěření emisí tuhých znečišťujících látek v intenzivních chovech drůbeže
ŠONKA, Jan
There is a large number of contaminants in the air coming from agricultural activities that affects our environment. One of the major producers of contaminants is caused by poultry farming. These agents can be called a carbon dioxide, carbon monoxide, ammonia, hydrogen sulfide and dust. The aim of this thesis is to determine the value of PM10 concentration in poultry farming. These particles can damage not only animals' health but also the one of farm staff, because they are able to get behind the respiratory tract. Measurements were carried out in a poultry farm in Sudoměřice u Bechyně according to valid methodology by measuring the emissions of dust particles in poultry for the integrated pollution prevention and control. The device used for measuring purposes was DUST TRAK 8530 II. The resulting values were compared with the ones that are listed in table 5.15 on page 157 of the document Final TWG meeting for review of the IRPP BREF.
|
|
|
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.
|
|
|
An acellular genotoxicity assay of complex mixtures of organic compounds bound on size segregated aerosols.
Fikejzlová, Monika ; Rössner, Pavel (advisor) ; Machala, Miroslav (referee)
The main aim of this work was to compare the genotoxicity of organic extracts from different size fractions of aerosol particles (1-10 µm, 0,5-1 µm, 0,17-0,5 µm) collected by high volume cascade impactors in various localities of the Czech Republic differing in the extent of the environmental pollution (Březno - strip mine, Dobré Štěstí - highway, Praha - city center, Láz - background station). Genotoxicity was determined in acellular assay of calf thymus DNA (CT-DNA) with and without S9 metabolic activation by analysis of DNA adducts induced by extractable organic matter (EOM) from the particulate matter (PM) by 32 P-postlabeling and the ability of extracts to induce oxidative DNA damage was evaluated using the competitive ELISA test. The main finding of this work is that most of the observed genotoxicity is connected with fine particles (<1 µm). The concentration of carcinogenic polycyclic aromatic hydrocarbons (c-PAHs) in EOMs indicate that fine fractions bound the highest amount of c-PAHs in all sampling sites. This fact might be related to a higher specific surface of this fraction as compared with a course fraction and a higher mass as compared with a condensational fraction. As for aerosol mass, both fine and condensational fractions are effective carriers of c-PAHs. Similarly, the DNA...
|
|
|
Analysis of emissions of particulate matter in poultry farming
ADAMOVSKÝ, Vojtěch
This thesis was focused on monitoring production of dust particles in poultry farming. This measurement was made with the Dusttrak II 8530 which monitored the environment in the stable every 3 seconds for 24 hours. For monitoring were selected companies in the South Bohemian Region, specifically MTD Ústrašice and Farma u lesa. Results of Dusttrak measurements showed that none of the stables exceeded the permissible limits of dust particles. Additionally microscopic analysis of the samples of dust particles revealed that the main component of source of dust was feed mixture.
|
|
|
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.
|
|
| |
guest ::
