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  • 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.
11

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.
12

Návrh parní odběrové kondenzační turbíny v Precheza, a.s. / Design of an extraction steam condensing turbine in the Precheza company.

Pavelka, Tomáš January 2009 (has links)
This diploma thesis is concerned with the design of the machinery with an extraction steam condensing turbine in Precheza corp. The theoretical part of this thesis describes the energetical situation in the company and the primary consideration about recovery of the heat, released at sulphuric acid production, for electrical power production. There is also presented brief description of the sulphuric acid production and the fundamental principles of the steam production at this process. In the practical part of this thesis there is performed the calculation of the heat-flow diagram of the steam turbine and the calculation of heat and producted electrical power at the basic operational states. There is presented the source code for the calculation of the heat-flow diagram using Matlab software. In the end there is mentioned the economical evaluation of the whole project, using the fundamental economical methods, such as net present value method, or profitability index, including the calculation of the pay-back period.
13

Energetická bilance bioteplárny / Energy balance of biomass heating plant

Žmolík, Václav January 2009 (has links)
This thesis deals with a design of a biomass heating plant combinating a Rankin-Clausius cyklus and a CHP unit. The CHP unit fuel is a biogas and the boiler fuel is a wooden chip. The adapted CHP unit regenerates feed-water of the R-C cycles. This design is technicaly and economicalty compared with the Rankin-Clausius cycle without feed-water regeneration by the CHP unit.
14

Energetické využití komunálního odpadu / Recovery of Energy from Municipal Wastes

Procházka, Jaroslav January 2011 (has links)
Master’s thesis deal with the design of waste to energy plant of municipal waste. The design of technology is to build the component parts of plant and basic calculation of individual apparatus. Overall technology concists of pretreatment of municipal waste, which is then stored in the bunker. Pretreatment municipal waste is fed into the counterflow rotary kiln. Flue Gates from the kilns are routed through multicyklony in the heat recovery steam generators (HRSG). The multicyklon separates the pollutants. The HRSG generates steam required properties from the feedwater from the heat kontent of gas. Superheated steam is driven to the condensing turbine with extract steam for distrikt rating and for power generation. The flue gas from the HRSG are passed through purification section, in which are separand pollutants the dry method purification. The left heat content of flue gas is used in heat exchanger with twist tube for preheating feed water for the HRSG. The flue gas are fed to the stack.
15

SAKO Brno - vyvedení tepelného výkonu do CZT / SAKO Brno - heat output in CHP

Mazák, Tomáš January 2014 (has links)
The purpose of this thesis is to design a solution thermal power outlet of incinerator in hot water for the supply this town of heat. First and foremost are described problems landfill society and their implications on the environment. Next some alternatives of the waste and the burning in incinerators are described too. The thesis describes the history of the first incineration plant in the Czech Republic and its subsequent upgrading of the economical and environmentally friendly waste recovery and modernization of flue gas cleaning. Contribution of the work is then proposed as amendments to equipment and wiring for use of steam for the conversion heat output into hot water. This is essentially a calculation of steam water heaters at the end of the expansion of the steam and the related adjustments to the turbine blading. At the conclusion outlines the basic economic calculation and comparison of profits and investment associated with this implementation compared to implementation, which is now projected. It is a calculation of investment efficiency and its possible repayment due to higher profits from the sale of energy. This work serves only as a basis work for future technical realization and it outlines the appropriateness of this alteration.
16

Parní kondenzační turbína / Steam condensing turbine

Štěpánová, Lenka January 2017 (has links)
The aim of this Master’s thesis is to design a steam condensing turbine with three bleeds. First, a heat balance of the steam cycle is calculated, followed by thermodynamic and stress calculation of the turbine blading and design of a gland steam system and drain system. A price proposal is suggested for the given steam turbine. In the end, a design drawing of the steam turbine is constructed.

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