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Bachelor's Thesis
Author of thesis: Patrik Roštínský
Acad. year: 2025/2026
Supervisor: Ing. Petr Kracík, Ph.D.
Reviewer: Ing. Jiří Škorpík, Ph.D.
The bachelor's thesis focuses on the thermodynamic design of a single-stage steam turbine. The first part presents a brief literature review concerning steam turbines, including their operating principles, construction, and basic classification. The review also includes an overview of selected single-stage turbines from chosen manufacturers. Subsequently, a preliminary and a detailed design are carried out, enabling the determination of realistic flow velocities, power output, efficiency, and the mechanical loading of the blade rows. The final part of the thesis is devoted to a parametric study, primarily investigating the influence of rotational speed and mean blade diameter on selected parameters, with the aim of identifying an optimal solution for the given steam conditions. The optimized design for the specified steam parameters resulted in an internal stage power of P_i=656,26 kW, thermodynamic efficiency of η_TDi=0,818 [-], while satisfying the selected thermodynamic and mechanical constraints.
Single-stage turbine, steam turbine, impulse stage, parametric study
Date of defence
16.06.2026
Result of the defence
Defended (thesis was successfully defended)
Grading
A
Process of defence
Student odprezentoval obsah své bakalářské práce. Otázky oponenta byly zodpovězeny. V průběhu obhajoby byly položeny tyto doplňující otázky: 1) Rovnice 32, dotaz byl směřován na úhel a obvodovou rychlost. Zodpovězeno. 2) Jaká je mezera mezi bandáží a statorem? Zodpovězeno. Jaké typy ložisek by měly být použity? Zodpovězeno.
Language of thesis
Czech
Faculty
Fakulta strojního inženýrství
Department
Energy Institute
Study programme
Energy (B-ENE-P)
Composition of Committee
prof. Ing. Jiří Pospíšil, Ph.D. (předseda) Ing. Petr Kracík, Ph.D. (místopředseda) Ing. Ladislav Šnajdárek, Ph.D. (člen) Ing. Michal Špiláček, Ph.D. (člen) Ing. Libor Kudela, Ph.D. (člen)
Supervisor’s reportIng. Petr Kracík, Ph.D.
Grade proposed by supervisor: A
Reviewer’s reportIng. Jiří Škorpík, Ph.D.
Grade proposed by reviewer: A
Responsibility: Mgr. et Mgr. Hana Odstrčilová