|
| |
|
|
Design of satellite transmitter pylon.
Kovář, Pavel ; Sikora, Michal (referee) ; Vlach, Radek (advisor)
There is solved a task “Design of satellite transmitter pylon” in this bachelor‘s thesis. Type of the satellite transmitter pylon structure is designed for application level 24 meters – it is location of satellite transmitter. There is one limitation only, constant trianguloid cross-section of the pylon. This thesis presents engineering design and evalution of the pylon.
|
|
|
Analyse of thermal phenomena using thermal network
Pavlů, Jiří ; Sikora, Michal (referee) ; Vlach, Radek (advisor)
The aim of this work is to create an algorithm for solving steady-state thermal processes, algorithms for dealing with the transition state of thermal processes and the algorithm for solving ventilation networks. At the same time, the resulting application were expected to meet the conditions arising from the use as teaching aid.
|
|
|
Administrative Building
Sikora, Michal ; Havířová, Zdeňka (referee) ; Lavický, Miloš (advisor)
The aim of master’s thesis is the elaboration of a construction project documentation of an administrative building, located in Brno. It is a detached, fourstorey building with a basement. In the basement there is a garage and technical facilities. On the first, second and third floors there are office premises. The supporting structure is designed entirely of reinforced concrete. The facade is designed as ventilated.
|
|
|
Apartment building
Sikora, Michal ; Havířová, Zdeňka (referee) ; Lavický, Miloš (advisor)
The aim of bachelor´s thesis is the elaboration of a construction project documentation of an apartment building, located in Jablunkov. It is a detached, three-storey building with a basement. Ground, first and second floor are used for living. Three of the six apartments are designed as barrier-free. Basement contains mechanical rooms and a cellar for each apartment. Ceiling is designed as reinforced concrete construction, walls are made of Porotherm bricks and roofing is designed as single ply flat roof.
|
|
|
Design outdoorového bydlení
Sikora, Michal
The target of this work is to design a tarp for sleeping in the nature. First part of the work is explaining all the subjects that relates to the theme. These gained knowledges are used in designing process, wich leads to 3D model. In second part is shown how autor got to result. Technical and aesthetical aspects are key for the product. The goal is to make unique design of tarp, wich can be used with serial made hammocks for outdoor living.
|
|
| |
|
|
Innovation of the Cooling System of Rotating Electrical Machines using CFD Methods
Sikora, Michal ; Kratochvíl, Ctirad (advisor)
This thesis deal with design and implementation of innovative cooling method, intended primarily for medium-power synchronous generators. The main objective of this proposal is to remove the large heat exchanger connected to generator. This heat exchanger unduly increases the space requirements for the machine location. The proposed solution is to use a direct water-cooled stator. It is assumed that the rotor winding will be still cooled by air. Unlike current cooling system, the hot air from the rotor can be cooled in smaller cooler inside the generator. In this work are described methods which can be used for design of water cooling basic parameters, taking required temperatures into account. A small induction motor was selected for practical verification of the proposed cooling concept. This motor was modified into two variants - related to the old cooling of synchronous generators and related to the proposed solution. Both of these variants were measured and compared with each other. Subsequently, CFD models of these two variants were set up. Measured temperatures were used for debugging of models and identification of material properties of components of these machines. The final model of water-cooled variant also makes it possible to simulate the work of motor for higher performance and to determine the overload compared with the old cooling variant. Some knowledge and experience obtained from the small water-cooled induction machine were used in the design of water-cooling for large synchronous generator. In a similar way, CFD models of the old variant of cooling and proposed variant of water- cooling were created. Although these models were not verified by actual measurements on the generators, the results indicated that the application of water-cooling in this type of machine is appropriate and provides many benefits.
|
|
|
Innovation of the Cooling System of Rotating Electrical Machines using CFD Methods
Sikora, Michal ; Ondrůšek, Čestmír (referee) ; Kotrba,, Vít (referee) ; Sháněl, Martin (referee) ; Kratochvíl, Ctirad (advisor)
This thesis deal with design and implementation of innovative cooling method, intended primarily for medium-power synchronous generators. The main objective of this proposal is to remove the large heat exchanger connected to generator. This heat exchanger unduly increases the space requirements for the machine location. The proposed solution is to use a direct water-cooled stator. It is assumed that the rotor winding will be still cooled by air. Unlike current cooling system, the hot air from the rotor can be cooled in smaller cooler inside the generator. In this work are described methods which can be used for design of water cooling basic parameters, taking required temperatures into account. A small induction motor was selected for practical verification of the proposed cooling concept. This motor was modified into two variants - related to the old cooling of synchronous generators and related to the proposed solution. Both of these variants were measured and compared with each other. Subsequently, CFD models of these two variants were set up. Measured temperatures were used for debugging of models and identification of material properties of components of these machines. The final model of water-cooled variant also makes it possible to simulate the work of motor for higher performance and to determine the overload compared with the old cooling variant. Some knowledge and experience obtained from the small water-cooled induction machine were used in the design of water-cooling for large synchronous generator. In a similar way, CFD models of the old variant of cooling and proposed variant of water- cooling were created. Although these models were not verified by actual measurements on the generators, the results indicated that the application of water-cooling in this type of machine is appropriate and provides many benefits.
|
|
|
Analyse of thermal phenomena using thermal network
Pavlů, Jiří ; Sikora, Michal (referee) ; Vlach, Radek (advisor)
The aim of this work is to create an algorithm for solving steady-state thermal processes, algorithms for dealing with the transition state of thermal processes and the algorithm for solving ventilation networks. At the same time, the resulting application were expected to meet the conditions arising from the use as teaching aid.
|
guest ::
RSS feed.