• DocumentCode
    2906985
  • Title

    Dynamic optimization of a solar thermal energy storage system over a 24 hour period using weather forecasts

  • Author

    Powell, Kody M. ; Hedengren, John D. ; Edgar, Thomas F.

  • Author_Institution
    Chem. Eng. Dept., Univ. of Texas, Austin, TX, USA
  • fYear
    2013
  • fDate
    17-19 June 2013
  • Firstpage
    2946
  • Lastpage
    2951
  • Abstract
    A solar thermal power plant is used as a case study for dynamic heat integration with thermal energy storage. Findings show that thermal energy storage gives the system the ability to make the power dispatchable. Additionally, by solving a 24-hour dynamic optimization problem where the plant temperatures and power output are variable allows the system to capture and harvest a higher percentage of solar energy, with the most benefit occurring on mostly cloudy days. The solar energy captured increases 64% from 4.75 MWh to 7.80 MWh using this scheme. Hybrid plant operation and the ability to bypass the storage tanks further improve the system performance.
  • Keywords
    hybrid power systems; power generation dispatch; solar power stations; thermal energy storage; thermal power stations; weather forecasting; dispatchable power; dynamic heat integration; dynamic optimization; hybrid plant operation; solar thermal energy storage system; solar thermal power plant; storage tank; time 24 hour; weather forecasting; Energy storage; Fluids; Mathematical model; Optimization; Power generation; Solar energy; Temperature control;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    American Control Conference (ACC), 2013
  • Conference_Location
    Washington, DC
  • ISSN
    0743-1619
  • Print_ISBN
    978-1-4799-0177-7
  • Type

    conf

  • DOI
    10.1109/ACC.2013.6580282
  • Filename
    6580282