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Interpolating and approximating spline curves
Jelínek, Daniel ; Štarha, Pavel (referee) ; Procházková, Jana (advisor)
This bachelor’s thesis deals with properties and algorithms of smooth curves calculation, specifically the calculation of B-spline curves. These curves can be applied in computer graphics. Since their calculation is defined recurrently, it is almost a necessity to use computers with programmed algorithms to obtain these curves. As for the practical part of this work, three programs for the calculation of approximating B-spline curves, interpolating B-spline curves and NURBS curves were created.
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Retrofit steam turbine 210 MW
Sedláček, Tomáš ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
This master‘s thesis deals with the retrofit of a three-body condensing steam turbine with an output of 210 MW. The first part deals with the thermal diagram, which is designed with seven unregulated steam extractions and one extraction for degassing. The mass flow is determined here on the basis of the required power and three thermal diagrams are made for different outputs. In the next part, the regulation stage in the A-wheel design was designed, including the strength control. The main subject is the design of the stage part, which is divided into preliminary and a detailed calculation relating only to the high pressure section of the steam turbine. During the optimization phase, a detailed calculation is linked to the thermal diagram and the regulation stage. The resulting blading of the HP section is optimized based on the selected properties, including strength control. An orientation design of the compensating piston together with the sealing system is also included, for selected diameters, due to the unknown action of the axial force from the MP and LP section. Furthermore, a strength check of the inner nodes of the existing body of the high-pressure section is performed, where the need to use the inner body arises. The designed HP section, including the regulation stage, achieves an internal power of 69,5 MW, an internal thermodynamic efficiency of 92 % and a reheat factor of 1,0168.
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Retrofit steam turbine 210 MW
Sedláček, Tomáš ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
This master‘s thesis deals with the retrofit of a three-body condensing steam turbine with an output of 210 MW. The first part deals with the thermal diagram, which is designed with seven unregulated steam extractions and one extraction for degassing. The mass flow is determined here on the basis of the required power and three thermal diagrams are made for different outputs. In the next part, the regulation stage in the A-wheel design was designed, including the strength control. The main subject is the design of the stage part, which is divided into preliminary and a detailed calculation relating only to the high pressure section of the steam turbine. During the optimization phase, a detailed calculation is linked to the thermal diagram and the regulation stage. The resulting blading of the HP section is optimized based on the selected properties, including strength control. An orientation design of the compensating piston together with the sealing system is also included, for selected diameters, due to the unknown action of the axial force from the MP and LP section. Furthermore, a strength check of the inner nodes of the existing body of the high-pressure section is performed, where the need to use the inner body arises. The designed HP section, including the regulation stage, achieves an internal power of 69,5 MW, an internal thermodynamic efficiency of 92 % and a reheat factor of 1,0168.
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Interpolating and approximating spline curves
Jelínek, Daniel ; Štarha, Pavel (referee) ; Procházková, Jana (advisor)
This bachelor’s thesis deals with properties and algorithms of smooth curves calculation, specifically the calculation of B-spline curves. These curves can be applied in computer graphics. Since their calculation is defined recurrently, it is almost a necessity to use computers with programmed algorithms to obtain these curves. As for the practical part of this work, three programs for the calculation of approximating B-spline curves, interpolating B-spline curves and NURBS curves were created.
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