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Aircondition in school building
Hanák, Pavel ; Blasinski, Petr (referee) ; Rubinová, Olga (advisor)
The first part of the bachelor thesis deals with the issue of ventilation at schools. The second part deals with the design of air-conditioning for the first and second floor of the school buil-ding. The last part deals with the documentation of these air-conditioning equipment.
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Electronic instrument for environment monitoring during plants growing
Žák, Jaromír ; Kuchta, Radek (referee) ; Hubálek, Jaromír (advisor)
The main goal of this project is to make electronic instrument for monitoring environment during plants growing for Mendel University of Agriculture and Forestry in Brno. The new device will replace current analog recorder of temperature and humidity. New device will be extended by measuring atmospheric pressure, illumination and CO2 concentration. Main advantage of electronic measuring is better lucidity of gained values. New concept allows easier comparison new values with earlier measured data.
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Energy efficient building of cinema and gallery
Kučírek, Pavel ; Jelínek, Ondřej (referee) ; Blasinski, Petr (advisor)
The aim of the master project is to design a new building of the cinema with gallery and to design technical equipment. The building is „L“ shaped, the half of the building is single-storey and the other half is two-storey, there is no basement. The most important rooms are on the ground floor – gallery, cinema, foyer and staff rooms. On the second floor there is projector room, sound engineer room, recording room and other sound adjusting rooms. The vertical loadbearing and non-loadbearing walls are designed from aerated concrete blocks, horizontal structure are cast-in-place reinforced slabs, the roof is flat. There is a reinforced concrete staircase that leads to the second floor, the building is insulated by ETICS. There are 4 HVAC units designed in the building, units are controlled with monitoring and controlling unit, also there are photovoltaics and rainwater storage systems designed. The project and visualizations were made in the ArchiCAD, MS excel, DEK, Halton HIT, AeroCAD software. Experiment validates measured data with mathematical analytics model that I used in 7 theoretical models of ventilator controlling possibilities to achieve energy savings. Re-sults will be compared and assessed.
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Energy Assessment
Březina, Jan ; Maurerová, Lenka (referee) ; Horák, Petr (advisor)
The first part of the final thesis is focused on the use of thermovision for diagnosing defects and failures in building industry. Documented history, physical principles and conditions for the measuring of thermographic camera are described in this part. Thermal images of the object described below were used for demonstrating the defects. The second part is dedicated to the elaborated energy assessment for a nine-storey slab block building. In total, there are five energy economic measures developed for the building. Three of those are of structural character and two of those are for building equipment. There are two variants designed based on the measures, one of which is recommended and evalu-ated. The final section is focused on the measurement of slab block building indoor environment (CO2, air temperature, relative humidity, dew point) and its assessment in concern with the current legislation.
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Energetic evaluation of civil buildings
Pliska, Roman ; Adam, Pavel (referee) ; Horák, Petr (advisor)
The first section of this thesis describes possible energy savings in family houses. Subsequently, possible energy savings are applied to, and a system revision is presented for, an office building, along with a calculation of the return on investment for the described variant based on notice 480/2012 Sb. The final section focuses on the measurement of the indoor environment at an administrative building (CO2, air temperature, relative humidity) and their assessment according to the current legislation.
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The dynamics of non-structural saccharides accumulation and Rubisco activity under the elevated carbon dioxide concentration and sink manipulation at beech
Uhrová, Lucie ; Vítová, Eva (referee) ; Hrstka, Miroslav (advisor)
This diploma thesis deals with dynamic of accumulation of non-structural carbohydrates and activity of Rubisco enzyme at elevated concentration of CO2 on beech (Fagus sylvatica L.). Three years old seedlings of beech were cultivated in minisphere with ambient (385 µmol•mol-1, variant A), and with elevated concentration CO2 (700 µmol•mol-1, variant E) for four months. In every variant the first half of plants was fertilized by nitrogen (variant N+) and the second half was control (variant N-). Plants used for experiment were at first adapted for darkness for 12 hours. Subsequently tested leaves were cut off, leafstalk including short segment of branch (approximately 1 cm) was inserted into 0.7 M solution of sucrose (variant S) or water (variant V) and exposed to radiation 200 mol•m-2•s-1 for 0, 30, 60, 120, 180 minutes. Then leaf area and fresh mass of leaf blade were established, samples were fixed in liquid nitrogen and stored in deep freezer to analysis in –70 °C. Rubisco content was determined by SDS-PAGE method, Rubisco activity spectrofotometrically and content of non-structural carbohydrates by anthrone method and HPLC method. Rubisco content was significantly lower in the N- variant than in N+ variant. Rubisco content was also significantly lower in E than in A variant, which is an evidence of down-regulation. Rubisco activity is moderately stimulated at E variant with time, but differences between variant A and E are not statistically significant. Influence of sucrose feeding to Rubisco activity was not proved. Significant differences were detected by anthrone method in non-structural carbohydrates content between variants S and V, but not between variants A and E. Statistically significant increase of sucrose content with time was detected by HPLC method at variant AS, but not at variant ES.
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Measurement and regulation systems in air conditioning
Ilko, Miroslav ; Jelínek, Ondřej (referee) ; Rubina, Aleš (advisor)
Diploma thesis deals with measurement and regulation in air conditioning. The theoretical part discusses the principles of regulation of individual components of air conditioning system. In the calculation part, several variants of fan regulation in the air conditioning unit are designed. The regulation variants are than applied to three operational states of the cinema. The power of the fan is controlled based on the concentration of CO2. The main task of the experimental part is to verify the mathematical model for calculating the concentration of CO2.
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Energy efficient office building
Měcháčková, Martina ; Rubina, Aleš (referee) ; Blasinski, Petr (advisor)
The topic my thesis is renovation and extension of office building in Lísek. Whole building is di-vided to three functional units. The first unit is the Municipal office, which is located in the south-east part of the building. The second unit is the Elementary school, which is located in the north-west part of the building. The last unit is the cultural hall, which is located in the centre of the building. The thesis is divided into three parts. The first part includes architectural and structural design. External and internal walls are made of ceramic blocks with ETICS on the envelope. The floor structure is designed from prestressed concrete panels. The roof is a truss with a slope of 30°. As a part of the renovation the windows and door will be replaced and building will be partially ele-vated. The second part of the thesis is focused on building services. An air-conditioning unit with cooling and heating is designed in the building. The heating of the building will be managed by heat pumps. Photovoltaic panels and smart lightning are also designed. The third part of the Thesis deals with measuring of CO2. The measurement takes place in the room E410 and in a room in a family house. I am watching the dependence of the fan on the CO2 concentration. In my experiment I watch how the CO2 concentration will chance, for example If I use different types of the window or turn on the fun for 5 minutes or 30 minutes. I will also suggest a suitable fan for the room The thesis was processed with Autocad, DEK, MS Excel, MS Word, Atrea software.
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Carbon sequestration by forest ecosystems in canging climate.
Hlaváčková, Lucie ; Lhotáková, Zuzana (advisor) ; Urban, Otmar (referee)
The global carbon cycle is in the focus of the scientists' interest, because understanding carbon sinks and their relationships can show the solutions of problems related with increasing CO2 concentration in the atmosphere in the future. I focused on the role of forests ecosystems in this carbon cycle. All forests cover almost one third of the Earth's land area. By photosynthesis they bind big part of atmospheric carbon to their biomass. Sink strength of forest can differ according to the type of biome, forest stand age and actual climatic conditions. Forest biomes can be generally divided according to the latitude to three groups: tropical forest biomes, temperate forests and boreal forests. The size of carbon stock decreases in this order. Other parameters, such as net primary production and respiration differ in dependence on the particular ecosystem. Tropical rain forests represent great carbon stock, but their deforestation causes massive C emissions back to the atmosphere. Boreal forests aren't considered as important carbon sink, but they influence local climate. Some speculations can also appear about the old forests. It is possible to find authors, who claims, that old forests are no more carbon sinks, so that their carbon balance is neutral. Many surveys prove that they bind less carbon...
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