National Repository of Grey Literature 15,076 records found  beginprevious15067 - 15076  jump to record: Search took 0.42 seconds. 

Building services of near zero energy bulildings
Fikejsl, Tomáš ; Komínek, Petr (referee) ; Hirš, Jiří (advisor)
The thesis deals with the issue will be nearly zero energy. The theoretical part is divided into several chapters. Describes the requirements of applicable legislation of the Czech Republic and the EU and the application of renewable energy in these buildings. The third and last part serves as a basis for part of the experiment. Calculation section applies theoretical knowledge into practice. The subject has become a new residential building in which they are designed to ensure the technical equipment required internal environment. The proposal concerns the heating, ventilation, cooling, domestic hot water and lighting. At the end are attached graphic of energy performance certificates (PENB) and evaluated the economic and ecological point of view. The experiment deals with the measurement of the internal microclimate administrative building type in Brno, with regard to the requirements of current legislation of the Czech Republic.

Hot water quality for heat
Snášelová, Tereza ; Hirš, Jiří (referee) ; Počinková, Marcela (advisor)
The diploma thesis focuses on assesment of water quality in heating systems. The experiment includes description of used methods and meters as well as analysis of collected samples. The theoretical part describes selected water properties, quality meters and sources of heat according to the material of their heat exchanger. This thesis processes design of heating system and hot water preparation for complex of administration buildings. The project includes calculations of heat losses, system proposal and two versions of possible heat source. The first version offers solution with condensing boiler with heat exchanger from stainless steel, while the second version uses condensing boiler with heat exchanger from aluminium and silicon. Both versions have their own solution of safety equipment and water treatment.

Bridge over highway on a ramp
Tlamka, Tomáš ; Pachl, Radek (referee) ; Panáček, Josef (advisor)
The proposal is for new construction of a road bridge over the highway.Three options of solutions were proposed but only the option of connected girder slab beam of six fields was selected. This variant was assessed by static calculation. Static calculation is processed in accordance with European standards. Another important part of this thesis is also drawings, visualization, technical report and construction procedure.

Rainwater reuse in the sports and cultural center
Bardonová, Hedvika ; Vaščáková, Alena (referee) ; Vrána, Jakub (advisor)
The diploma thesis is focused on rainwater reuse in the sports and cultural center and elaboration of project sanitary equipment installation. The theoretical part of the thesis is focused on performance issues rainwater reuse in the buildings. In another part of thesis are drawn calculations with three variants of the design volume storage reservoir for rain water. The drawings are part of the project.

Uptake and Distribution of Chlorphenols in Barley
Jíšová, Tereza ; Forczek, Sándor ; Tesařová, E.
Chlorinated phenols represent one of the most common groups of toxic industrial compounds.\nThey are resistant to biodegradation in the environment and persist for a long time. Food crops\nsuch as spring barley, are susceptible to contamination by various pesticides and organic waste,\nand these substances can then get into the plants. Uptake and distribution of 2-chlorophenol were\ninvestigated in axenic spring barley. After absorption of 14C-labelled 2-chlorophenol, the plants\nwere harvested and extracts were analyzed for 2-CP derived radioactivity. The uptake of 2-CP to\nroots and transport to leaves were confirmed. Radioactive balance was calculated for individual\nplants.

Diagnosis warming selected parts of an electric machine
Prezbruchý, Martin ; Skalka, Miroslav (referee) ; Veselka, František (advisor)
This work is describing warming parts of an electric machine. In the first part, it is describing heat and temperature, its origin and radiation. Work is carrying on with the problems of heat origin in electric machines and in selected parts of an it. In the next part, the work is describing measurment and devides it in contact and contactless. The third part is dealing with electric machines and considers commutator motors. Work continues with practical part, which describes measurments on selected electric machine, includes calculations and graphs. After this part, work is dealing with temperature allocation in graphic interface and describes a 3D model production. In the conclusion, it is evaluating the measurment achievements and comparing the results of various used metods.

Biomass boilers
Netopilová, Petra ; Lisý, Martin (referee) ; Baláš, Marek (advisor)
This bachelor´s thesis concerns with the biomass boilers and the biomass as a renewable source of energy. The first part informs us about renewables sources of energy, concerns with biomass and with production of fuel from biomass. The second part describes the biomass boilers. Bellow it shows the possibillities of heating, which the todays market is able to offer us. It mainly deals with the posswibillities of haeting of biomass and compares the most economical boiler, which is used for different fuel. The calculating part is specialized in comparing of biomass boilers with gas boiler from economical standpoint.

The spread of moisture from sources of Mondi SCP and their impact on the microclimate after the project ECO PLUS - Installation of a new paper machine PM19
Sokol, Zbyněk ; Řezáčová, Daniela
The report summarizes the results of the assessment of the impact of changes in humidity and heat emissions from sources of Mondi SCP for selected climatic characteristics associated with the expansion of production at the new paper machine PS19A. The assessment is based on a comparison of impacts to the existing system resources, including an increase in pulp production (Project 2000), and extended system of resources associated with the operation of PS19A. The results were obtained by applying a mathematical model CT-PLUME/MONDI_R. The calculations were performed for the winter part of the years 2011 to 2014 and included an assessment of the impact of point and diffuse sources on the climatic characteristics of the model area.

Use of Microwave Heating in the Synthesis of Novel Polysaccharide Derivatives.
Taubner, T. ; Synytsia, A. ; Sobek, Jiří ; Kortanková, V. ; Čopíková, J.
Microwave-assisted modification of polysaccharides is a relatively new method. Microwave heating is used for improving of extraction, hydrolytic and synthetic procedures. Modification of polysaccharides with the microwave irradiation is effective, fast and economic. The aim of this study was to apply the microwave irradiation in synthesis of carboxymethylcellulose (CMC) derivatives. This polysaccharide and its methyl ester reacted with n-butylamine yielding N-butylamide. The reactions were subsequently monitored by FUR and organic elemental analysis of the products. Degree of substitution (DS) and reaction yields were calculated based on nitrogen and carbon contents. The optimal reaction conditions were found to prepare product with the highest DS. Amino-de-alkoxylation of CMC methyl ester was significantly more effective than direct microwave assisted amidation of CMC, and microwave assisted significantly improved amino-de-alkoxylation.
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Business Plan: Beauty studio
Svobodová, Martina ; Lešetický, Ondřej (advisor) ; Dvořák, Jiří (referee)
The aim of the thesis is to prove whether is this business plan a feasible project or not. Based on the conclusion the entrepreneur will decide to go for the realization or not. The subject of the thesis is a beauty studio with already certain amount of current clients however still with substantial space for improvement. To reach better profitability there are calculations, analysis and set up of a new strategy carried out.