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The object of metropolitan significance on the street Benesova Brno
Bocán, Matúš ; Urban, Lukáš (referee) ; Makovský, Zdeněk (advisor)
Designed site is located near the historic city center of Brno on the east side. It is defined by Koliště street and Benešova Street. It is part of the so-called Brno ring-circuit, which originated in the 19th century after the demolishing of the town's fortifications. By function, the site can be divided into three parts. In the southern part is designed entry area with the building of metropolitan significance - city hall. This area is focused on the main pedestrian entrance from Nádražní Street and the main transport hub in front of Central Station. Metropolitan building is the main compositional and functional accent of the area. In the middle of the park is located pavillion, which forms reclined relax and rest area. In the northern part is designed multifunctional house with the main function of rentable office spaces. Along Benešova street is designed linear insulating greenery. Design of park and line of green spaces extends ,, green ring "around the historical center on the southeast side. The designed facility of metropolitan building was placed in the area so as to form endpoints in main compositional visual axis - boarding pedestrians routes from Nádražní Street and Theatre Street. In the future it envisages the realization of green spaces for rail routes in the manner of Highline Park, making it the visual endpoint from the east. The main entrance to the building is the from the square. From the western part of the Metropolitan building is designed pedestrian zone open towards urban greenery and park. In the pedestrian zone is designed commercial parterre of town hall with the possibility of creating a summer terrace, exhibitions and various artistic activities. In this usage is also involved pavillion, under which the overlay can be used for supporting the ongoing activities within the metropolitan house. From the north side of city hall is a secondary entrance to the restaurant section, which is oriented to the designed park. In the northern part is the territory compositionally enclosed by multifunctional building, which is composed in the form of a closed block with passages.
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Laboratory device focused on the switched capacitor circuits
Urban, Lukáš ; Šotner, Roman (referee) ; Petržela, Jiří (advisor)
This Master`s thesis is focused on through acquaintance of principles of the function circuits with switched capaticors and posibility of their application mainly in frequency filters or signal generators. The origin of the switched capacitor circuits is mentioned at the beginning of the work. There are references to the first scientific work and scientists who have dealt with this issue. Maxwell`s idea: lossy element (resistor) replace with lossless element (switched capacitor) in electric circuit, is further described. In the next chapter of this work are listed types of switching capacitors and their use in simple RC filters and in structures of inverted or noninverted integrators and their application in more complex higher order filters. The advantages and disadvantages of SC circuits versus circuit composed of discrete components are shown. It is also listed a simple low-pass switched RC filter implemented with analogue multiplexer 4053. Using the LTC1043 integrated circuit, which structure and properties are described and analyzed in detail in the work, the 1st order aktive or pasive low and high pass filters were designed and subsequently simulated in the computer simulator OrCAD PSpice v.10. Another chapter deals with the integrated circuits higher order filters, structure and properties of the integrated filter LTC1060 are further analyzed here. Except this IC there are mentioned integrated filters commercially less available from the corporations Linear Technology and Maxim. The main objective of thesis was to propose and establish laboratory device and laboratory measurment focused on the switched capacitor circuits. The laboratory device has been designed with integrated circuits LTC1043 and LTC1060, which is demonstrated by using passive and active integrator, 2nd order band-pass and 4th order band-pass with Chebyshevovou approximation.
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The environmental aspects of biomass boilers operation
Slavíček, Martin ; Urban, Lukáš (referee) ; Pavlas, Martin (advisor)
The content of this thesis focuses on the subject of biomass usage for energetic purposes. The introduction deals with the renewable energetic resources and their utilization and utilization of the biomass as a fuel, its division and characteristics. The following part deals with the legislation in the Czech Republic for the machinery used for combustion of biomass and its standards. Examples of different technology used in boilers and generators for biomass is mentioned as well. Then the biomass emissions with their specific values are discussed.
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Processing and evaluation of experimental data measured at prototype unit for energetic utilization of biomass
Blažková, Blanka ; Kilkovský, Bohuslav (referee) ; Urban, Lukáš (advisor)
Main task of this final thesis is to analyse experimental measured data of prototype unit with output of 1 MW for energic biomass utilization. Furthermore the aim is to get acquainted with energic biomass problems utilization in middle output kettles and with stationary source legislation. To transfer measured value due to legislative conditions this diploma work solves the conversion procedure which is necessary to evaluate emission limits for measured concentration CO, SO2, NOX and stiff contaminating matters. My final work put emphasis on graphics processing in general tables and graphs with trends describtions. Endeavour is achieve discussion bilateral connection.
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Potential of biomass resources in CZE and costs of its energy utilisation - I
Votava, Jakub ; Urban, Lukáš (referee) ; Máša, Vítězslav (advisor)
This bachelor thesis ,,Potential of biomass resources in CZE and costs of its energy utilization,, evaluates financial part of energetic use of biomass and summarizes factors affecting the price of biomass on Czech market. The work is focused on wood chips. In the introduction there is an overview of basic division of biomass and utilization as an energy source. Next chapter is about wood chips, their production and properties. Second part of the thesis describes the occurrence of lumber companies in Czech Republic and assessment of wood chips price.
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