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Aerodynamic design of the last stage of a steam turbine
Jeřábek, Lukáš ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
Diploma thesis deals with calculations of a steam turbine with two uncontrolled extraction points according to the assignment, aerodynamics of the last two stages and operating range with respect to ventilation, range of performance and straining of the last blading under the large condensation pressure deviations. For the first three stages the calculation of prismatic action blades is executed. The fourth and the fifth stages are designed with inconstant reaction over the blades length and their calculation is executed with constant circulation method. For these stages, aerofoil design with respect to their aerodynamic qualities is carried out using Bézier curves. During the whole time verification process of aerofoils qualities, their energy losses and isoentropic Mach number distribution is executed in MISES program in cooperation with Doosan Škoda Power.
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Aerodynamic design of the last stage of a steam turbine
Jeřábek, Lukáš ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
Diploma thesis deals with calculations of a steam turbine with two uncontrolled extraction points according to the assignment, aerodynamics of the last two stages and operating range with respect to ventilation, range of performance and straining of the last blading under the large condensation pressure deviations. For the first three stages the calculation of prismatic action blades is executed. The fourth and the fifth stages are designed with inconstant reaction over the blades length and their calculation is executed with constant circulation method. For these stages, aerofoil design with respect to their aerodynamic qualities is carried out using Bézier curves. During the whole time verification process of aerofoils qualities, their energy losses and isoentropic Mach number distribution is executed in MISES program in cooperation with Doosan Škoda Power.
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Parkinsonův druhý zákon a byrokracie
Komárková, Eva ; Minárik, Pavol (advisor) ; Nováček, Jan (referee)
Práce se zabývá vztahem mezi výdaji a příjmy státních úřadů ? byrokracie. Nejprve, v teoretické části práce, jsou osvětleny základní pojmy nutné k pochopení problematiky. Dále práce obsahuje popis jednotlivých přístupů Cyrila Northcote Parkinsona, Ludwiga von Misese, Wiliama A. Niskanena a Maxe Webera. Tyto přístupy jsou následně porovnány. Praktická část práce zkoumá vztah mezi příjmy a výdaji na konkrétním úřadu - Úřadu práce Hlavního města Prahy v období mezi lety 2000-2007. Vztahy jsou zkoumány na základě statistické analýzy.
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