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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
91

Akumulace energie z OZE / Accumulation of Energy from Renewable Energy Sources

Heller, Ondřej January 2010 (has links)
The objective of the first part of master’s thesis is mapping the potential of various types of renewable sources in Europe and Czech Republic, especially solar energy, wind energy, water energy and biomass. There are described principals and ways of energy generation from these sources, brief overview of current technologies, and also their advantages and limitations. An important part is electric supply continuity from renewable sources, there are large differences and the resulting to restrictions on construction and connecting the units to the power system. In this work there are mentioned some impacts on network and rates of change of supply, some sources are also evaluated in terms of maximum power, that can be connected to the power system in our country. The conclusion of the first part is dedicated to energy storage technologies, which are suitable and usable for renewable sources, there are described their principals, properties, status of development and types of aplications, in which these technologies are used. This chapter also focusses on the price level of each technology. The second part of the thesis deals with 1 MWp on-grid photovoltaic power plant design. This design includes also the redox flow batteries accumulation, the first variant calculates on 24-hour steady energy supply, the second optimalized variant calculates on daily energy supply. There are the accumulation system costs estimated and also the payback period for the both variants. Additionally there is also determined minimum penalization for cost-effective operation. The last part is dedicated to changes of impact on the local grid and changes of system impacts, after the accumulation system is installed.
92

Polyfunkční dům / Polyfunctional house

Kuklová, Jana January 2022 (has links)
The main aim of the thesis is to design a new building of the mixed-use building in Brno. The building consists of two parts. One part consists of shops. The second part consists of offices and conference space. It is a building that has three floors above ground and one underground. In the basement there are a facilities and a garage. Shops are designed on the ground floor. There are offices on the second floor. Conference rooms are on the third floor. The building has a flat roof. The vertical load-bearing structures are designed from Porotherm ceramic blocks. In the core of the building, the vertical load bearing structures are designed as monolithic reinforced concrete walls. Columns are used in the building for the possibility of open space. The masonry of the basement consists of white bathtub. The floors are designed as folded from the Spiroll system. Internal non-load-bearing walls are designed from gypsum board with double cladding. The second part of the work deals with forced ventilation, cooling and central heating. In the third part of the project I deal with acoustics. The project was carried out in the Auotocad program. All constructions comply with valid standards and regulations.
93

Kondenzační technika a odvody spalin / Condensing technology and flue gas

Müller, Jan January 2014 (has links)
This thesis is developed as a proposal for heating for a primary school and kindergarten in the region of Brno-countryside. For the insulated building, a combination of heating and air-conditioning is proposed. The concept is designed so that the air-conditioning preheats the exterior air and the heating system warms the incoming air to a comfortable temperature. For the required thermal performance, sources of heat (for gas and pellets) and a layout solution for the boiler room is designed. Drainage of combustion products is proposed for both solutions. The project solution is per the extent of the construction permit. The theoretical part is linked with the practical part through the condensation boilers, their function and division, and drainage of combustion products. The experiment for the given topic was conducted on the drainage of combustion products. The pressure loss of the reverse knob was determined in relation to the flow rate of air in the condensation boilers as this loss is essential in assessing the drainage of combustion products.

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