Sökning: "steam turbines"

Visar resultat 1 - 5 av 39 avhandlingar innehållade orden steam turbines.

1. 1. Steam Turbine Thermal Modeling for Improved Transient Operation

   Författare :Monika Topel; Björn Laumert; Konstantinos Kyprianidis; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; steam turbines; transients; start-up; finite element model; heat transfer; Energy Technology; Energiteknik;

   Sammanfattning : The growing shares of renewable energy sources in the market and solar thermal power applications have set higher requirements on steam turbine operation.These requirements are related to flexibility during transients. A key aspect sought of such flexibility is the capability for fast starts. LÄS MER

3. 2. Improving Concentrating Solar Power Plant Performance through Steam Turbine Flexibility

   Författare :Monika Topel; Björn Laumert; Markus Jöcker; Magnus Genrup; Tony Arts; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Concentrating Solar Power; Steam Turbines; Transients; Start-up; Energy Technology; Energiteknik;

   Sammanfattning : The amount of incoming solar energy to earth is greater than any other source. Among existing technologies to harness solar energy there is concentrating solar power (CSP). One advantage of CSP is that is dispatchable, meaning that it can provide power even when the sun is not shining. LÄS MER

4. 3. 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

5. 4. Steam Turbine Optimisation for Solar Thermal Power Plant Operation

   Författare :James Spelling; Andrew Martin; Magnus Genrup; KTH; []
   Nyckelord :solar thermal power; steam-turbine; start-up; cool-down; dispatchability increase; koncentrerad solenergi; ångturbin; uppstart; nedkylning; ökad flexibilitet;

   Sammanfattning : The provision of a sustainable energy supply is one of the most important issues facing humanity at the current time, given the strong dependence of social and economic prosperity on the availability of affordable energy and the growing environmental concerns about its production. Solar thermal power has established itself as a viable source of renewable power, capable of generating electricity at some of the most economically attractive rates. LÄS MER

7. 5. On the On-line Tools for Treatment of Deterioration in Industrial Processes

   Författare :Christer Karlsson; Erik Dahlquist; Risto Ritala; Mälardalens högskola; []
   Nyckelord :Deterioration; Industrial Processes; Sensors; Process models; Neural networks; Bayesian networks; Data reconciliation; Steam turbines; Boilers; Energy- and Environmental Engineering; energi- och miljöteknik;

   Sammanfattning : For industrial processes high availability and efficiency are important goals in plant operation. This thesis presents studies and development of tools for on-line treatment of process deterioration and model and sensor errors in order to achieve these goals. LÄS MER