• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 90
  • 12
  • 7
  • 2
  • 1
  • 1
  • 1
  • Tagged with
  • 116
  • 85
  • 53
  • 51
  • 49
  • 47
  • 43
  • 43
  • 41
  • 40
  • 36
  • 33
  • 31
  • 29
  • 25
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Návrh spalovny odpadu s parní turbinou / Waste heat recovery vith steam turbine

Korytár, Zbyněk January 2012 (has links)
The aim of this thesis is the design of municipal waste incinerator using the generated steam for power generation and distribution of heat. At the beginning is engaged in development of waste issues and the current state of waste management. The next section describes the options of waste treatment and possible solutions to the current state of waste issues. The concept of waste incineration plants: For waste incineration is used line for burning 100,000 tons of municipal waste per year.Combustion takes place in a grate boiler. Its advantage is the versatility and flexibility to waste. Electricity generation is dealt with condensing turbine with controlled consumption. The flue gas cleaning is designed to semi-wet method. The final stage involves the calculation of the balance, the calculation of electric energyand basic economic evaluation.
52

Retrofit parní turbiny 250 MW na biomasu / Biomass Retrofit 250 MW Steam Turbine

Novák, Martin January 2013 (has links)
There is a description of modernisation steam condensing turbine in this Master´s thesis. Electric output is decreased from 250 MW to 160 MW. This thesis is divided into two parts, there is a calculation of heat balance in first part and a calculation of blading in second part. Detail drawing and heat balance are the most important results of this Master´s thesis.
53

Návrh parní kondenzační turbíny / Design of condensate steam turbine

Tota, Lukáš January 2013 (has links)
Diploma thesis deals with the design of steam turbine of PBS ENERGO, a.s. company design concept. Condensing turbine is on low steam parameters and of barrel concept. Turbine has two unregulated steam extractions, regulation stage with action blading and seven stages with reaction blading type, which was computed with ca/u method on mean blading diameter. The thesis contains also design of thermic diagram, calculation of axial force on rotor, calculation of steam seals and basic design of longitudinal turbine cross section.
54

Návrh vytápění pro třípatrový řadový dům / A space heating system for a three-story row hose

Aulehla, Jiří January 2015 (has links)
This master`s thesis describes the design alterations that lead to a reduction in heat loss of the house, an extension of living space in the attic and the subsequent reconstruction of the heating system. The first is presentation of the house. After that, there is calculation heat loss of the house. The next step contains design of a reconstruction for every room and calculation modified heat loss. Another point this work is design the reconstruction of the heating system, extension heating system to the attic floor, calculation pressure losses and selection condensing gas boiler. After that is designed regulation with central control unit and electric thermostatic radiator valve. The last part of master`s thesis is focused on benefit assessment changes, budget and return of investment. The drawings are listed in the appendix.
55

Kondenzační parní turbina s přihříváním / Condensing Steam Turbine with superheating

Urbánek, Martin January 2014 (has links)
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.
56

Modernizace VT dílu parní turbiny 300 MW / Retrofit HP Section Steam Turbine 300MW

Vaľočík, Jan January 2014 (has links)
The aim of this master‘s thesis is retrofit of a 300 MW tandem compound steam turbinetype K300 - 170 with three casings and reheat of steam. In the first part a heat balance of the cycle is calculated for given nominal parameters. Further the thesis is focused only on the high pressure section of the turbine, for which the flow section is designed based on thermodynamic calculations and appropriate blade profiles are selected. Then the stress control of the blading is done. The thesis is concluded with estimation of power loss due to shaft seals and real power output of the turbine is calculated. This thesis also includes a drawing of axial section of the high pressure section of the turbine.
57

Parní turbína pro solární elektrárnu / Steam Turbine for Solar Power Station

Trávníček, Tomáš January 2015 (has links)
The aim of the master’s thesis is a design of double casing condensing steam turbine with gearbox, reheat and with power output 110 MW for solar power station. The steam turbine has an axial output to the air cooled condenser. The design of the turbine is developed on the basis of concept of Doosan Skoda Power company. It is the main reason this turbine has the impulse blading. There are heat calculation and calculation of heat balance diagram in the first part of the thesis. The system of regeneration consist of three Low Pressure Feedwater Heaters (L.P. FWH), deaerator, and two High Pressure Feedwater Heaters (H.P. FWH). The next part of the thesis is focused on a flow path section of turbine. There is a selection of profile of turbine blades at this part, too. The basic design and strength calculation are available only for high-speed high pressure (HP) part of turbine, as an assignment of the thesis says. There is heat balance diagram for 75 % of nominal power output at the end of thesis. The drawing of longitudinal section of HP part of turbine is the main appendix of this thesis.
58

Vytápění střední školy / Heating of a High School

Pyszczyková, Anna January 2016 (has links)
The introduction of theoretical part deals history of floor heating. Here is an overview of the technology, which was for centuries used for floor heating. Further included in the introductory part of the aggregate materials used, which are used for floor heating, and used. In the next part of the theoretical introduction we are given the best known ecological heat source. These are mainly heat pumps and solar collectors. The last part is made in the proposal which are important values calculated for the design and seamless use of central heating system.
59

Kondenzační parní turbína pro pohon napájecího čerpadla / Feed Pump Condesing Steam Turbine

Uherek, Jan January 2016 (has links)
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.
60

Kondenzační parní turbína / Condensing Steam Turbine

Šrůtek, Petr January 2016 (has links)
The theme of master's thesis is the design of condensing steam turbine with three unregulated steam outputs. The steam parameters in individual outputs are dealt with in heat balance circulation. This chapter is followed by thermodynamic and strength calculations, including the calculation of the turbine gland steam and design of drainage. Structural design of the turbine is also included in this thesis.

Page generated in 0.0918 seconds