Thematische Bibliographien / Lopatkování / Dissertationen
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Dissertationen zum Thema „Lopatkování“

Autor: Grafiati
Veröffentlicht am 28. Juni 2021
Zuletzt aktualisiert am 12. Februar 2022

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1

Holečková, Michaela. „Rekonstrukce parní kondenzační turbíny“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254346.

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The aim of this master thesis is the retrofit of a condensing steam turbine. The thesis obtains a revision of the steam turbine, the reconstruction of steam turbine blades and the basic calculation of bolt torques of the turbine split plane. The master thesis is assigned to a specific retrofit of the steam turbine Lang. In the introductory part the thesis is focused on the turbine description and the basic functions of selected turbine components. The following part deals with the revision and the proposal of repairs for all components and the recommendation of additional modernizations of specific measuring equipments. The analysis of anchoring the stator and rotor blading and their reconstruction is discussed in the next part. In the last part the thesis focuses on the sealing of the turbine split plane and the calculation of the various bolt torques closely linked to the sealing.
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2

Nytra, Petr. „Retrofit parní turbíny“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443171.

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Topic of this diploma thesis is thermodynamical recalculation of turbine TG3 for different parameters and new design of its blading. Introduction deals with theoretical basics of turbines and their components. Second part explains general reasons for retrofit and then specifically for Heating plant Olomouc, where TG3 is located. Third part includes used calculating methods and formulas. Last part presents results, which were calculated in software MS Excel. A cross section drawing is attachment of this thesis.
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3

Vymětalík, Zbyněk. „Kondenzační parní turbína“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378716.

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The topic of this diploma thesis is a condensing steam turbine with one regulated steam extraction. The first part contents design and balance of heat scheme. The heat scheme is the basis for the main part of this work, which is the thermodynamic design of the turbine with reaction blades. At the end, the characteristics of the turbine are created. Drawing of the turbine section is attached to this thesis.
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4

Doseděl, Jakub. „Parní turbína pro biomasový blok“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417844.

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The aim of this diploma thesis is a design of a condensing steam turbine based on technical specification of inlet steam - maximal mass flow 120 t/h, temperature 440 °C; on temperature in deaerator 125 °C; on mass flow 0 – 60 t/h and pressure 3,0 bar(a) of regulated steam extraction and on ambient temperature in the vicinity 25 °C. The result contains steam turbine with reaction blading, work output 28,76 MWe and efficiency 82 %.
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5

Biskup, Michal. „Parní turbína pro malý jaderný zdroj“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443174.

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This master´s thesis deals with the design of a steam turbine for a small nuclear power plant with a power of 50 MWe. In the first part of the work is proposed thermal and mass balance. The turbine has seven unregulated steam extractions, which are divided: two are for high-pressure feedwater heater, four are for low-pressure condensate heater and one is for degassing. The next chapter deals with the calculation of the regulation stage which is designed like an A-wheel and here is also strength control. Then, a pre-design and a detailed design of the stage part with the reaction blading. The stage part is consisted of eight cones with a total number of 27 stages. In the following chapters, is calculated the compensating piston, seals system and bearings. In the end, is made the consumption diagram. Part of the work is a conceptual drawing of a steam turbine section. The resulting steam turbine has a power output 50,197 MW and an internal thermodynamic efficiency of 73,9 %.
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6

Řezníček, Ondřej. „Kondenzační parní turbina“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230760.

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The theme of this thesis is design of single body condensing steam turbine of 50 MW to saturated steam for new nuclear power plant generation. In the thesis is made design and calculation of balancing scheme. On the basis of the calculation is made blades part of turbine. Furthermore, the thesis solves basic strength and structural calculations. The result is drawing of longitudinal cut of the turbine.
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7

Drápela, Jakub. „Parní kondenzační turbína s jedním regulovaným odběrem“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254308.

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This diploma thesis describes a design of condensing steam turbine out of entered data of vapor parameters. There is selected a reaction blading type according to a conception of the company PBS Energo PLC. The turbine has one controlled extraction and three uncontrolled ones. The work also includes a proposal of thermal scheme, bearing and gearbox assignment. Furthermore there is also made a draft design of longitudinal section turbine
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8

Jeřábek, Lukáš. „Aerodynamický návrh posledního stupně parní turbíny“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378638.

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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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9

Mašek, Martin. „Kondenzační parní turbina 25 MW“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230758.

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Master’s thesis deals with design and calculation of one body condensing steam turbine of 25 MW with samples for paper-making industry. The thesis is focused on calculation of the turbine’s heat balance with two technological samples and regeneration which consists of two low pressure heaters and a deaerator with a power reservoir. The steam turbine is designed with a water cooling condenser with down output. The flow part is calculated with lengths of blades. There are basic strength and proportion calculations. In the end of the thesis the turbine’s heat balance is recalculated to 80% and 105% scheme according to an assignment. Another part of this thesis is a drawing of a longitudinal cut of the turbine including a connector with a gearbox.
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10

Pavlíček, Martin. „Kondenzační parní turbina do paroplynového cyklu“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230036.

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This thesis named Cosdensing steam turbine in combi-cycle deals with the calculation of thermal balancing scheme and the design of turbine. This double body steam turbine with combined HP-IP part and double-flow LP part does not have any additional samples of technological steam. LP part has two side outputs to the water-cooled condensers. There is a basic calculation of force effects on the LP part at operation. The thesis also includes a drawing of a longitudinal cut of LP part and its layout, including positron of the condensers.
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11

Borýsek, Václav. „Kondenzační parní turbína“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417732.

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This diploma thesis deals with the design of a steam condensing turbine for intake steam of pressure 125 bar, temperature 540 °C and maximal intake of steam into the turbine 130 t/h. A thermal scheme is designed, including low-pressure and high-pressure regeneration, an air condenser, a feed tank and a boiler. Afterwards a thermodynamic design of a condensing turbine is made with an A-wheel type regulating stage and a stage part with reaction blades. The design of the blades is strength-tested. Then is made the design of the compensating piston and the sealing system. In the end the characteristics of the turbine for non-design steam flows is plotted. The designed turbine has a power of 34644 kW, has a thermodynamic efficiency of 85.1% and a reheat factor of 1.046.
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12

Prinz, František. „Kondenzační parní turbína“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400480.

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The main topic of this master thesis is the design of condensing steam turbine. In the beginning the heat scheme with low pressure regeneration is calculated. There are chosen 2 low pressure heat exchangers and 3 steam outlets from the turbine. In the main part the thermodynamic proposal with reaction blades is designed, which consists of the regulating stage and the stage part of turbine. The survivability of the turbine is checked by the calculation of mechanical strength. In the end the turbine is checked at reduced mass flow and the turbine characteristic is plotted. The designed steam turbined has a regulating stage and 34 stages in the stage part, has a power of 45873 kW with thermodynamic efficiency of 83.6%. The reheat factor is 1.052.
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13

Tretera, Michal. „Parní turbína pro průmyslovou teplárnu“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443163.

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This diploma thesis deals with the thermodynamic design of a backpressure steam turbine. The mass flow of steam through the turbine is determined based on the required heat output, which is transferred in a heat exchanger at the turbine outlet. The governing stage of the turbine is in form of an impulse stage, with optimization of degree of reaction included. During the optimization, a suitable rotor blade was chosen as well as its size. The governing stage is followed by fifteen stages of reaction blading with the stage loading coefficient in the range of 2,75 to 2,80. The governing stage and the reaction blading both meet the mechanical strength requirements. Balancing piston, sealing system and bearings are also designed. Finally, a turbine characteristic is created as well as a longitudinal section. The designed turbine has a speed of 10 000 rpm. While supplying the required heat output, it has a terminal power output of 5 863,4 kW and a thermodynamic efficiency of 84,69 %.
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14

Ingr, Adam. „Parní turbína pro biomasovou elektrárnu“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400482.

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This master‘s thesis deals with thermodynamic calculation of condensing steam turbine with controlled extraction point for heat exchanger, into biomass power plant block. Rated output of steam turbine is 6.5 MW and rated output of heat exchanger is 4.5 MW. At the beginning of the thesis is explained the heat scheme and the effect of heat regeneration on the design of turbine. Attention was also paid to the heat equation of individual thermal diagram devices and the calculation of the steam mass flow rate. The next part is focused on thermodynamic calculation of the turbine, followed by mechanical stress calculations. The calculation is divided into preliminary design and detailed calculation. At the end, the performance analysis of the designed turbine is made.
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15

Votoupal, Adam. „Parní protitlaková turbína s integrovanou převodovkou pro pohon kompresoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-400498.

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The master’s thesis deals with the design of steam back-pressure turbine with integrated gearbox for compressor drive according to given parameters. The first part of the thesis is literature review which comprises a general division of steam turbines, especially a description of the types of blading. Furthermore, it describes the conversion of energy in the steam turbine stage in detail. The second part of the thesis contains calculations and includes the design of the flow parts of the steam turbine, the design of the outlet and the integrated gearbox. Attached to this work are drawings of a simplified section of the steam turbine with a gearbox and the layout drawing of the machine.
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16

Pospíšil, Dan. „Vliv tvaru výstupní hrany lopatkové mříže na parametry hydraulického stroje“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230902.

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Master's thesis deals with possibility of simplifying calculation hydraulic machines by converting the three-dimensional geometry in the plane. The aim is to create modifications of a trailng edge and determine their effect of the hydraulic parameterso of the machine.
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17

Flimel, Lukáš. „Parní turbína 8 MW“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231802.

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The master´s thesis is focused on detail calculation of back-pressure steam turbine with reactionary blades, with non-control exctraction line with electrical output 8 MW. Thermodynamic calculation of flow stage (canal) and stress calculation of rotor blade carrier of regulation stage, is carried out in firts part of master´s thesis. Preliminary turbine design and description, is carried out in second part of master´s thesis. Master´s thesis tasks has been created in EKOL spol. s.r.o.
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18

Dobšáková, Lenka. „Čerpadlo s difuzorem s použitím stochastických lopatek (oběžné kolo i difuzor)“. Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-261216.

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This doctoral thesis studies the non-uniform blade cascade for centrifugal pumps. Influence of non-uniform blade cascade is investigated on the impeller and diffuser. A non-uniform blading impeller of pumps in this doctoral thesis was examined in terms of influence on efficiency characteristic. The idea of using non-uniform blading is to obtain a flat efficiency characteristic. Then the centrifugal pump could be used on larger scale of power with achieving a sufficiently high efficiency. The work is based on experimental measurements and numerical simulations of non-uniform hydraulic pump components. Non-uniform impeller and the diffuser were newly designed for this research. A new measuring track of small submersible pumps was needed to design and build for measurements. Different pump combinations with conventional hydraulics on one working point and hydraulics with non-uniform were measured. All measurements were evaluated and characteristics of efficiency, head and power were obtained for each measured combination. Some of pump combinations (which were measured in experiment) were numerically simulated by program Ansys Fluent. Data needed to evaluate the characteristic of efficiency and specific energy were collected from each numerical simulation. A theoretical consideration concerns the influence of non-uniform blade cascade applied on diffuser. The suggestion how to decrease hydraulic losses in canals was done. The theoretical consideration how to make a flat efficiency characteristic was made.
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