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Screw turbine form small hydro-power plant
Sklenář, Vít ; Hrnčířová, Michaela (referee) ; Pospíšil, Jiří (advisor)
The aim of this work is the research of small hydro power plants, design of main structural dimensions of screw turbines for small hydroelectric power plant and the subsequent evaluation of the economics of production. The thesis is divided into four main parts. The first part deals with general information about small hydropower plants. In the second part the screw turbine and its accessories are introduced in details. In the third part the screw turbine is designed for a specific location. The fourth section compares the possibilities of manufacturing hydrodynamic screw.
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Information Security in Energetics
Straževský, Martin ; Lieskovan, Tomáš (referee) ; Hajný, Jan (advisor)
This bachelors thesis focuses on analysis of vulnerabilities of DLMS/COSEM protocol, DoS (Denial of Service) attack and load test execution on smart grid components -- smart meters. Thesis implements load tester application that can test given components load resistance based on input parameters, that affect predefined load profile consisting of phases and periodically checks whether the component is responding after each phase.
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Design of Access System as a Part of Physical Security Solution
Dohnal, Matěj ; Svoboda, Vlastimil (referee) ; Sedlák, Petr (advisor)
This master’s thesis deals with design of an access system as a part of physical security solution for an energy company in the Czech Republic. The access system is designed to meet all legal requirements and conform to ISO 27001 certification. Implementation of the proposed access system is demonstrated on the selected company object, a representative example of connecting the critical infrastructure element and the company's common facility.
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Super-heated steam cycles
Uherek, Jan ; Kracík, Petr (referee) ; Pospíšil, Jiří (advisor)
The purpose of this bachelor´s thesis is to present new, highly efficient thermal cycles used in power plants, and to compare them with classical cycles. First, the impact of these cycles on the efficiency of electricity production is examined. The following section describes power plants where the supercritical technology has been successfully installed. The last section explains the calculation of the heat transfer surface. The conclusion of this thesis attempts to outline the future of energetics from the author´s point of view.
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The relationship between body dimensions and locomotion in human and other hominins
Fedrová, Johana ; Struška, Michal (advisor) ; Vážná, Anna (referee)
We work with estimates of body weights and dimensions of hominins derived from fossil finds. The reliability of the estimate is important for calculations related to thermoregulation and energetics of the individual. The termoregulation of individual is influenced by number of factors including breathing type, sweating ability, body hair, type of locomotion, size of limbs to size of body ratio. Hair loss allows for greater heat loss. The ability to sweat and thermoregulate in hominins is more important for running than for walking. Heat loss is influenced by the trunk breath and the distal limb element lenght. Body shape in the current human population conforms to Allen's rule. Populations living closer to the equator show smaller bi-iliac width and longer limbs relative to body size. This trend can be observed in hominins. The cost of locomotion, the cost needed to travel a given distance in a given time, is affected by the lower limb lenght. Longer lower limbs reduce this cost, they allow to cover the distance using fewer steps. Each step is more costly because more muscle power is needed to move the longer limb. The step lenght and the optimal movement speed of the individual is proportional to the individual's stature. Man excels in the ability of bipedal locomotion, which Australopithecus...
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Rozvoj komunitní energetiky
Hrdličková, Gabriela
The diploma thesis addresses the development of community renewable energy facilities in the area of the Bobrava local action group in the South Moravian Region. The objectives of the thesis is to discover whether there are currently any functioning facilities for community renewable energy in the selected area of investigation; what are the positive and negative aspects of community energy provision; what are the barriers impeding creation of such facilities; what is the general public opinion and finally, the future plans of the municipalities in the development of this industry. Information for the fulfilment of the objectives has been obtained by the method of structured interviews, which were conducted with senior civil servants of ten member municipalities of LAG Bobrava. The obtained results revealed that community renewable energy is not provided in any of the selected municipalities, also the specific advantages, like self-sufficiency and modernization. Mentioned are also negatives like for example high acquisition costs and insufficient legislation. All the municipalities approached plan to introduce community energy in their area within the framework of municipal buildings.
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The Potential of the Smart Cities Concept
HOMOLA, Roman
The diploma thesis is focused on the evaluation of the concept of Smart Cities in Písek, mapping the implementation of this concept, analysis of the current situation of Smart Cities in the city and evaluation of advantages and disadvantages associated with this project in Písek, on the basis of which will be drawn up proposals for development of Písek Smart Cities in the Czech Republic. The work is divided into a literature review, which explains the very concept of Smart Cities and its own elaboration, based on a questionnaire survey, interviews with experts and analysis of conceptual and strategic documents.
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Czech public opinion on issues of radioactive waste and deep geological repository – July 2021
Červenka, Jan ; Ďurďovič, Martin
In its July 2021 survey, the Our Society series included a battery of questions on issues of the energy system, with a detailed focus on nuclear energy and some aspects of handling radioactive waste. The study inquired how well informed about nuclear waste citizens themselves feel, how reliable they consider different sources of information on nuclear safety, how they think spent nuclear fuel and radioactive waste are currently being handled in the country, how today’s society should respond to the problem of radioactive waste, and how they view different issues of building a deep geological repository of radioactive waste. Only one in five Czech citizens consider themselves well informed about matters of radioactive waste. In matters of nuclear safety, the public considers scientists and experts the most reliable; relatively high levels of reliability are also attached to the State Office for Nuclear Safety and, to a lesser extent, “the government authority concerned with the disposal of radioactive waste”. Three in five citizens believe that today’s society should actively address the problem of radioactive waste. Half of the public find a deep geological repository to be the safest way of addressing the problem of radioactive waste. More than three in four citizens believe that municipalities should have the right to refuse the building of a deep geological repository in their territory.
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Czech Public Opinion on Nuclear Energy – July 2021
Červenka, Jan ; Ďurďovič, Martin
In its July 2021 survey, the Our Society series included a battery of questions on issues of nuclear energy. The survey examined public opinion about whether the proportion of nuclear energy in electricity production should increase or decrease in future, what people think about building a new unit of the Dukovany Nuclear Power Station (DNPS), whether or not they are concerned about the use of nuclear energy in the country, and whether they have confidence in the government’s decisions about the development of nuclear energy.
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