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Driven roller conveyor
Pokorný, Pavel ; Kašpárek, Jaroslav (referee) ; Pokorný, Přemysl (advisor)
The thesis describes design of driven roller conveyor for transport products on Euro pallets of a total maximum weight of 600kg. The design includes determination of the respective sizes, capacities and strength, as well as design of a support frame and final strength control in the most affected areas. The thesis also contains documentation with drawings of complete conveyor, section of the conveyor and last section of the conveyor.
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HRSG with two pressure levels,137,4kg/s, 569°C
Šmejkal, Petr ; Kohout, Přemysl (referee) ; Skála, Zdeněk (advisor)
This thesis deals with thermal calculation and design of proportions and layout of calorific components of a heat recovery steam generator according to given output parameters of steam and input parameters of flue gas. Furthermore, the proportions of boiler drums and irrigation and transfer pipes are designed and draught losses are calculated.
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Heat Recovery Steam Generator with Two Pressure Levels
Smolinský, Petr ; Kohout, Přemysl (referee) ; Lisý, Martin (advisor)
This master‘s thesis deals with the design of horizontal heat recovery steam generators (HRSG) with two pressure levels after a combustion turbine. In the introduction part is performed thermal calculation and proposal of a heat transfer surfaces. Furthermore, are suggested dimensions of the drums and pipes for flooding and transferring. The emphasis is placed on the fulfillment the required parameters of steam and flue gas at HRSG outlet. At the end is calculated loss of boiler draft and made technical documentation a drawing of the boiler.
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Proposal two-pressures horizontal waste heat boiler
Med, Lukáš ; Svoboda, Petr (referee) ; Baláš, Marek (advisor)
This master's thesis deals with thermal calculation and design of proportions of calorific components of a heat recovery steam generator (HRSG), which is placed behind a combustion turbine, for given parameters of exhaust gases and requested parameters of steam. In the first chapters is described the design, layout of HRSG and the thermal calculation. The next parts deal with the design of flue-gas duct and each individual heating surface. Next section shows computations of dimensions of drums, flooding pipes, transferring pipes and all other outer pipes. The chosen materials are described in one of the last chapters and the last chapter deals with calculation of draft loss of steam generator.
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Horizontal screw conveyor
Švec, Milan ; Malášek, Jiří (referee) ; Kašpárek, Jaroslav (advisor)
The focus of this bachelor thesis is construction, technical solution and design of a horizontal screw conveyor with purpose of transporting agricultural grain as per set parametres. The scope of this thesis includes calculations regarding the main parts of screw conveyor, designs of electric motor, clutch and bearings and a firmness check of the functional parts The body of the thesis is composed from a technical report and drawing documentation, supported by model assembly created in 3D CAD system, as well as a drawing of the entire device, a drawing of the screw and individual drawings of shafts.
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HRSG
Rajkovič, Jaroslav ; Křemínský, Pavel (referee) ; Lisý, Martin (advisor)
The goal of this thesis is to design a two-pressure level heat recovery steam generator. First a general layout of the boiler is selected and thermal calculation is performed. Then the dimensions of flue gas duct are determined and the heat transfer surfaces are designed in detail. After that, the drums and all the main boiler piping are designed a materials selected. Based on the calculated values, a layout drawing and 3D model of the boiler are created.
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Horizontální proudění vody v malých rybnících
ŠŤASTNÁ, Tereza
This bachelor thesis dealt with the flow in small ponds (specifically in pond Dehtář near the village Žabovřesky) with a focus on horizontal flow. Its aim was to perform field measurements of water movement of the surface (using devices developed by us, equipped with GPS logger) under various atmospheric conditions and from the results to determine the water flow velocity at the surface in real conditions. GPSMAP 78s, GPSMAP 60CSx and MOTOROLA phones with GPS Logger application inserted into balanced PVC pipes were used for measurements. Another objective was to create a simplified 3D model of the pond and simulate the flow in its deeper layers using Ansys software. Field measurements resulted in streamlines showing the direction of flow for the top layer of water. With wind speeds of 1-3 ms-1 in foggy and cloudy weather, the observed flow velocity was approximately 0.025 ms-1. At very low wind speeds of 0-1 ms-1 in foggy weather, the flow velocity was 0.0083 ms-1. Under variable conditions, when the surface was first slightly frozen but then melted and stronger winds from a different direction began to blow, the resulting flow velocity was first 0.025 ms-1 (at a wind speed of 0.7-1 ms-1) and later 0.0375 ms-1 (at a wind speed of 2-3 ms-1). The Ansys modelling resulted in simulations of flows in simplified ponds of two shapes (one with a sloping bottom, 0.5-4 m depth and rounded corners and the other with a constant depth of 2 m and a depression with a total depth of 4 m and rounded three corners) at different wind velocities (0.5; 1; 2; 4; 8 and 16 ms-1) and three or four wind directions. In general, the simulations showed that the flow velocity increased with wind speed, with the prevailing flow velocity being about 3% of the wind speed for all simulations. At the same time, flow velocity decreased with depth, and water was mixed to approximately 95% of the depth (up to 3.8 m). The simulations also showed the formation of eddies, here the water moved fastest where the eddies touched the edge of the pond, but in the centre of the eddies there were often areas of very low flow velocities and relatively long residence times (from seven hours to six days). The results of the field measurements and simulations in this thesis can contribute to the understanding of the processes (e.g. the effect of water mixing on oxygen, plankton and nutrient content at different areas) occurring in pond Dehtář. They may thus provide a basis for subsequent mapping of its circulation patterns, which may influence the origin and development of oxygen deficiencies and the concentration of natural food for fish and nutrients in certain parts of the pond. They can thus help to determine the suitability of areas, for example for fish feeding or sampling and thus have a positive impact on improving the management of this pond.
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Horizontal screw conveyor
Švec, Milan ; Malášek, Jiří (referee) ; Kašpárek, Jaroslav (advisor)
The focus of this bachelor thesis is construction, technical solution and design of a horizontal screw conveyor with purpose of transporting agricultural grain as per set parametres. The scope of this thesis includes calculations regarding the main parts of screw conveyor, designs of electric motor, clutch and bearings and a firmness check of the functional parts The body of the thesis is composed from a technical report and drawing documentation, supported by model assembly created in 3D CAD system, as well as a drawing of the entire device, a drawing of the screw and individual drawings of shafts.
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