|
|
Feed Pump Condesing Steam Turbine
Uherek, Jan ; Kubiš, Zdeněk (referee) ; Fiedler, Jan (advisor)
This diploma thesis focuses on designing impulse stage steam turbine to be used as the feed pump drive. I consecutively carried out thermodynamic calculation, seals and bearings layouts, with the aim to determine the steam mass flow through the turbine. Furthermore, I conducted turbine blade toughness check-ups, determined the rotor critical rotational speed, check-up rotor critical place (bearing pin) for torsion, and created a clutch screws design. The final part of this thesis pursues the other operating states of the turbine. This thesis is amended by a mechanical drawing of the turbine transection.
|
|
|
Comparing grades axial steam turbines for various media
Staněk, Štěpán ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
Aim of the thesis is to design a single-stage axial steam turbine with impulse blading type for two different media with identical input parameters at input of stator and pressure behind the impeller. Calculation is made for water steam and organic fluid R134a. Main part of this thesis is termodynamic calculation and its optimalization in order to achieve maximum output and efficiency of the stage for both working fluids. At the end of the thesis an alternative calculation of impeller friction losses is presented.
|
|
|
Condensing Steam Turbine with superheating
Urbánek, Martin ; Weber, Norbert (referee) ; Weber, Norbert (referee) ; Fiedler, Jan (advisor)
The thesis is focused on designing of condensing steam turbine with reheating for combustion of biomass. The turbine is developed to be tandem compound-regenerative with five uncontrolled extraction points. Optimization of reheating pressure is made in the turbine's cycle. The turbine outlet is constructed to lead down to the water cooled condenser. Thesis includes the calculation of heat cycle with the draft of flow channel of high pressure and middle-low pressure turbine. Detailed calculation of middle-low pressure turbine, including stress-strength analysis, is performed. The thesis provides an evaluation of flow scheme of 100 % and 75 % of generator’s power output and the drawing of middle-low pressure turbine in longitudinal section.
|
|
|
Condensing Steam Turbine
Kracík, Petr ; Martinec, Jiří (referee) ; Fiedler, Jan (advisor)
Diploma thesis named Condensing steam turbine deals with heat scheme balancing computation of condensing steam turbine K55 and her design. This turbine with 5 unregulated take-offs and overpressure blading type, is computed with (c_a/u) method in the middle of blading diameter. Regulation degree is chosen with impulse blading and feet cross section is checked on durability. At the end of the thesis turbine consumption characteristic is derived from the zero output up to the nominal output. Integrated part of this thesis is conceptional design of longitudal turbine section.
|
|
|
Turbine drive for charger unit of bus
Obrlík, Jan ; Fiedler, Jan (referee) ; Škorpík, Jiří (advisor)
Diploma thesis deals with use of combustion chamber to drive the electric bus charging unit. Based on the research and analysis of operation economy, a turboexpander with an air pressure tank is selected to drive the charging unit. A thermodynamic design is created for this variant. Based on this design a unit layout is proposed. Layout drawings are created for the proposed layout.
|
|
|
Steam turbine for SMR
Guliš, Jan ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
This master’s thesis deals with the design of condensing steam turbine for small modular reactor (SMR) with nominal heat power of 250 MW. Steam turbine is designed in two variants. The first variant operates with all the heat power of nuclear reactor. In the second variant the heat power is equally divided into two identical steam turbines so the designed turbine process half of the heat power. In the first part of the paper the haet balance diagrams with low pressure regeneration are proposed. In both cases the turbine has a total of four bleeds. Three bleeds for low pressure heaters and one bleed for degasification system in feed water tank. Both turbines are designed with an impulse stage and reaction blading. Turbine that processes all the heat power is designed without gearbox at nominal rpm of 3000, contains 15 stages and achieves a clamp power of 71,11 MW. Turbine that operates with half of the heat power is designed with a gearbox at nominal rpm of 4500, has 14 stages and clamp power of 34,91 MW. The consumption characteristics are created for both of designed steam turbines. Drawing of the turbine section is attached to the thesis.
|
|
|
Turbine drive for charger unit of bus
Obrlík, Jan ; Fiedler, Jan (referee) ; Škorpík, Jiří (advisor)
Diploma thesis deals with use of combustion chamber to drive the electric bus charging unit. Based on the research and analysis of operation economy, a turboexpander with an air pressure tank is selected to drive the charging unit. A thermodynamic design is created for this variant. Based on this design a unit layout is proposed. Layout drawings are created for the proposed layout.
|
|
|
Comparing grades axial steam turbines for various media
Staněk, Štěpán ; Fiedler, Jan (referee) ; Kracík, Petr (advisor)
Aim of the thesis is to design a single-stage axial steam turbine with impulse blading type for two different media with identical input parameters at input of stator and pressure behind the impeller. Calculation is made for water steam and organic fluid R134a. Main part of this thesis is termodynamic calculation and its optimalization in order to achieve maximum output and efficiency of the stage for both working fluids. At the end of the thesis an alternative calculation of impeller friction losses is presented.
|
|
|
Feed Pump Condesing Steam Turbine
Uherek, Jan ; Kubiš, Zdeněk (referee) ; Fiedler, Jan (advisor)
This diploma thesis focuses on designing impulse stage steam turbine to be used as the feed pump drive. I consecutively carried out thermodynamic calculation, seals and bearings layouts, with the aim to determine the steam mass flow through the turbine. Furthermore, I conducted turbine blade toughness check-ups, determined the rotor critical rotational speed, check-up rotor critical place (bearing pin) for torsion, and created a clutch screws design. The final part of this thesis pursues the other operating states of the turbine. This thesis is amended by a mechanical drawing of the turbine transection.
|
|
|
Condensing Steam Turbine with superheating
Urbánek, Martin ; Weber, Norbert (referee) ; Weber, Norbert (referee) ; Fiedler, Jan (advisor)
The thesis is focused on designing of condensing steam turbine with reheating for combustion of biomass. The turbine is developed to be tandem compound-regenerative with five uncontrolled extraction points. Optimization of reheating pressure is made in the turbine's cycle. The turbine outlet is constructed to lead down to the water cooled condenser. Thesis includes the calculation of heat cycle with the draft of flow channel of high pressure and middle-low pressure turbine. Detailed calculation of middle-low pressure turbine, including stress-strength analysis, is performed. The thesis provides an evaluation of flow scheme of 100 % and 75 % of generator’s power output and the drawing of middle-low pressure turbine in longitudinal section.
|
guest ::
