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How to reduce overheating in Czech towns and village
Hermanová, Veronika ; Kučerová, Zdeňka (referee) ; Pavlovský, Tomáš (advisor)
The aim of this bachelor thesis is to point out raising temperature and climate changes in towns and villages in the Czech Republic. It focuses on the impact of climate changes on health of population as well as impact on public places. It analyses and proposes all possible conceptual solutions to support sustainable development and reduction of the climate impact. The target is to indicate measures of help to nature that will navigate to positive response on the climate changes on streets and public places to achieve comfortable living in the build-up area. Part of the bachelor thesis is personal proposal for the modification of the given public space in the town of Valasske Mezirici, to which individual measures are specifically projected.
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Refrigeration unit with the R718 refrigerant
Krupa, Matyáš ; Tuhovčák, Ján (referee) ; Hejčík, Jiří (advisor)
The diploma thesis deals with the design of a cooling system using the refrigerant R718 (water) with a capacity of 5 kW for building cooling. The thesis is divided into three chapters. The first chapter describes the basic principles of cooling systems, thermodynamic cycles, and refrigerants. The following second chapter provides an analysis of the compressor cycle and its individual components – compressor, heat exchangers, and expansion valve. The final third chapter focuses on the actual design of the cooling system, including thermodynamic calculations and determining the basic geometric parameters of the compressor.
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Research into the causes of very low friction between wheel and rail
Polnický, Jan ; Hajžman, Michal (referee) ; Omasta, Milan (advisor)
A low traction coefficient causes problems when starting trains, extends the braking distance, and leads to overrunning stations. These problems often occur in conditions of high humidity and low traffic. Oxides on the rail surface form a suspension with water, causing the traction coefficient to drop. This work addresses the mechanisms by which this drop is caused, based on observations using an optical tribometer. Additionally, a study was conducted to map the influence of various parameters on the drop in the traction coefficient. The tested parameters include suspension concentration, the applied amount, the type of base fluid, and others.
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Analysis of perfluorinated alkyl compounds in environmental matrices
Šimáková, Anna Marie ; Řezáčová, Veronika (referee) ; Mravcová, Ludmila (advisor)
The bachelor thesis deals with the still topical issue of perfluorinated and polyfluorinated substances in the aquatic environment. In the theoretical part, the production and use of PFASs, which has led to the spread of these pollutants into the environment, is first addressed. Then, their behaviour in the environment is presented, which, due to their properties, results in their persistence in the environment, their ability to accumulate in living organisms and, in the case of decomposition, the possibility of even worse impacts. Exposure can result in carcinogens, hormonal changes and various types of toxicity in living organisms. The theoretical part concludes with methods for possible extraction from different matrices and detection by a suitable analytical method. The experimental part deals with the optimization of parameters for the method of determination and extraction of perfluorinated and polyfluorinated substances from water. All parameters were optimized to achieve the highest possible recoveries with acceptable repeatability and to achieve the lowest possible limits of detection and quantification.
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Football Recycling
Longauerová, Romana ; Sládeček, Svatopluk (referee) ; Sedlák, Jaroslav (advisor)
The final work responds to the global warming trend in the form of a park zone with edible vegetation. This serves as a food source for the residents and also supports the species biodiversity near the city centre. The design makes use of natural resources and creates an efficient rainwater harvesting system from the adjacent area surrounding the site. The heart of the site becomes the former football stadium building, which is used as a community garden and for educational purposes in conjunction with agriculture and nature.
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Intercurricular teaching programme Fish of our waters
SVĚTLÍKOVÁ, Tereza
The aim of the thesis was to create a proposal for a teaching programme focused on the issue of fish occurring in the Czech Republic, in order to facilitate the work of teachers who can use the activities during their personal practice. The first part of my thesis focuses on the issues of water around us (lakes, ponds, running waters) and on some of the fish species living in the Czech Republic which are introduced to pupils in primary school lessons. The second part focuses on the design of a cross-curricular teaching programme, which includes tools such as worksheets, pictures, etc. Last but not least, reflection from practice and evaluation tests are included to verify the effectiveness of the proposed activities. The results show that after the implementation of the proposed activities, students have an overview of fish and everything related to them. They know some of the representatives, they can tell what fish needs to live, what it looks like, describe its body, distinguish between freshwater and marine fish, know what they breathe, what the fish's lateral line is for, etc. They also know what a fisherman needs to own when he wants to catch a fish and that it is not an easy job.
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Urban design of waterfront in Třebíč
Vacek, Jiří ; Ležatka,, Lukáš (referee) ; Pavlovský, Tomáš (advisor)
Thesis is concerning urbanistic treatment of Jihlava river embankment in the city of Třebíč. Tries to find cause for urban non-functionality of the area within local and wider context to its surroundings. Offers possible solution for rehabilitation of the urbanistic function of the embankment, including putting the embankment into role of important passageway, improving its bounds to the surroundings and active role in city's everyday life.
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Thermal baths Yverdon, five senses in architecture
Štukheil, Petr ; Uřídilová, Marcela (referee) ; Koleček, Ivan (advisor)
Concept In the measure of town Yverdon Les Bains the baths park is understood like one of the important spot which influences its surroundings. The surroundings give the impression of neutrality because of the differentness of its composition. So the baths park and three historical buildings in it create the most valuable element. It is independent world where people could relax and feel their senses. Free shape in the “free landscape”. It is seemingly haphazard like its surroundings. Although the building has its own inner composition which I call “Small world under large rooftop”. I would like to create atmosphere where would be unique inner space, light and intimate darkness, warm and cold, atmosphere full of nice smell. Each material has its own sound, temperature and surface. The basic element of the baths is water. It is going through the building, connecting all the parts of the baths and creates special atmosphere. People have to know they entered in to the baths world.
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Use of Renewable Energy Sources for Water Recovery
Patera, Jan ; Vojtek, Martin (referee) ; Baxant, Petr (advisor)
The bachelor's thesis deals with a summary of the basic theory for obtaining water from air humidity and it‘s following treatment in order to meet the hygienic regulations of drinking water. It presents the basic principles usable for obtaining water from the air, also presents the basic principles, including a basic overview of existing equipment for obtaining water from the air. It defines ideal conditions for obtaining water using atmospheric water generators. In a specific locality is determined a proposal for the water yield with energy performance during the year. Furthermore, the work deals with the use of renewable resources in obtaining water and the possibility of its subsequent treatment.
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