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Steam turbine for steam-gas block
Kober, Ondřej ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
This master’s thesis deals with the design of two variants of a condensing steam turbine for a steam-gas unit. In the first variant, steam bleeding from the turbine for low-pressure regeneration is considered, in the second variant heat regeneration would be provided by a heat recovery steam generator, which is not the subject of the master’s thesis. Three unregulated steam extractions for the deaerator and two low-pressure heaters are considered for the turbine with steam bleeding. Both turbines were designed with an impulse governing stage and a reaction blading. The result of the design of bleeding variant is a turbine with a speed of 7000 min-1 with 7 cones, 33 stages with power output of 13,69 MW and an efficiency of 81,83%. The turbine without bleeding has a speed of 6500 min-1, 7 cones, 38 degrees, power output of 14,13 MW and an efficiency of 81,97%. The consumption characteristics are given for both turbines at the end. For the steam bleeding turbine, a drawing of the turbine section is attached to the thesis.
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Analysis of the usability of a reduction-cooling steam uniton the principle of a vortex tube
Vintr, Lukáš ; Šnajdárek, Ladislav (referee) ; Škorpík, Jiří (advisor)
The aim of the thesis was to describe the current issues of the reduction-cooling station, vortex tube, comment on its use and the design a classic reduction station as the first case. The second practical part was an analysis or comparison of a reduction cooling station operating on the principle of a vortex tube with a conventional one. At the end of the thesis, the problem of determining the radius for the total number of pairs taken is explained. The problem is caused by the instability of potential vortex, which arises mainly because we want to take away matter, but we need to conserve energy. The assumption for the total number of pairs is that it will be more than 10 times higher than the standard variant of the reduction cooling station. From the principle of the vortex tube and the available results, it is clear that the device could be used only for cooling, not for reduction.
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Analysis of the usability of a reduction-cooling steam uniton the principle of a vortex tube
Vintr, Lukáš ; Šnajdárek, Ladislav (referee) ; Škorpík, Jiří (advisor)
The aim of the thesis was to describe the current issues of the reduction-cooling station, vortex tube, comment on its use and the design a classic reduction station as the first case. The second practical part was an analysis or comparison of a reduction cooling station operating on the principle of a vortex tube with a conventional one. At the end of the thesis, the problem of determining the radius for the total number of pairs taken is explained. The problem is caused by the instability of potential vortex, which arises mainly because we want to take away matter, but we need to conserve energy. The assumption for the total number of pairs is that it will be more than 10 times higher than the standard variant of the reduction cooling station. From the principle of the vortex tube and the available results, it is clear that the device could be used only for cooling, not for reduction.
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Steam turbine for steam-gas block
Kober, Ondřej ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
This master’s thesis deals with the design of two variants of a condensing steam turbine for a steam-gas unit. In the first variant, steam bleeding from the turbine for low-pressure regeneration is considered, in the second variant heat regeneration would be provided by a heat recovery steam generator, which is not the subject of the master’s thesis. Three unregulated steam extractions for the deaerator and two low-pressure heaters are considered for the turbine with steam bleeding. Both turbines were designed with an impulse governing stage and a reaction blading. The result of the design of bleeding variant is a turbine with a speed of 7000 min-1 with 7 cones, 33 stages with power output of 13,69 MW and an efficiency of 81,83%. The turbine without bleeding has a speed of 6500 min-1, 7 cones, 38 degrees, power output of 14,13 MW and an efficiency of 81,97%. The consumption characteristics are given for both turbines at the end. For the steam bleeding turbine, a drawing of the turbine section is attached to the thesis.
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