Sökning: "Steam power"

Visar resultat 11 - 15 av 134 avhandlingar innehållade orden Steam power.

  1. 11. On Degradation and Monitoring Tools for Gas and Steam Turbines

    Författare :Magnus Genrup; Kraftverksteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; applied thermodynamics; Throughflow; Thermal engineering; Monitoring; Gas Turbine; Turbomachinery; termodynamik; Termisk teknik; Deterioration; Steam Turbine;

    Sammanfattning : The revenue from a power plant is strongly dependent on the life cycle cost. Today, when the market conditions for power-producing companies have shifted from a protected market to a deregulated market, the need for tools to monitor power plants has increased significantly. LÄS MER

  3. 12. Fluidized bed plants for heat and power production in future energy systems

    Författare :Guillermo Martinez Castilla; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biomass combustion; combined heat and power; thermal power plant; process control; operational flexibility;

    Sammanfattning : Fluidized bed (FB) plants are used for heat and power production in several energy systems around the world, with particular importance in systems using large shares of renewable solid fuel, e.g., biomass. LÄS MER

  4. 13. Why Firms Grow : The Roles of Institutions, Trade, and Technology during Swedish Industrialization

    Författare :Vinzent Ostermeyer; Ekonomisk-historiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Industrialization; Firms; 19th Century; Institutions; Trade; Technology; Growth; Development; Factory; Corporations; Steam Power; Tariffs; Employment Multiplier; Services; Causal Inference; Sweden; USA; Great Britain;

    Sammanfattning : Industrialization and the emergence of a manufacturing sector are generally perceived as key drivers for countries to see economic growth and increases in living standards. Only 200 years ago, most countries were relatively poor and had similarly low living standards. LÄS MER

  5. 14. The Analysis of Thermal Power Stations and their Interaction with the Power System using Simulator Test Methods

    Författare :Jan Andersson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermal power station; network simulator; frequency control; island operation; turbine model;

    Sammanfattning : This thesis describes a new method of testing power stations with regard to their frequency control behaviour and analyses results obtained using this new method. The test concept is based on that the power station unit to be tested remains synchronized onto its normal strong network, whereas the frequency control behaviour is set up to be that of the conditions if the unit was working on a much smaller network, using a computer based simulator system and feeding simulated control signals to the input of the units frequency control system. LÄS MER

  7. 15. Measurements of Film Flow Rate in Heated Tubes with Various Axial Power Distributions

    Författare :Carl Adamsson; Henryk Anglart; Bengt Sundén; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; film flow; film thickness; dryout; power distribution; annular flow; Atomic physics; Atomfysik;

    Sammanfattning : Measurements of film mass flow rate for annular, diabatic steam-water flow in tubes are presented. The measurements were carried out with four axial power distributions and at several axial positions at conditions typical for boiling water reactors, i.e. 7 MPa pressure and total mass flux in a range from 750 to 1750 kg/m2s. LÄS MER