Cu stp 01_intro

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  • 1. SOLAR THERMAL POWER! GEEN 4830 – ECEN 5007! 1. Introduction! Manuel A. Silva Pérez ! silva@esi.us.es !
  • 2. Contents }  Course objectives and contents }  Solar Energy }  Solar Thermal Concentrating Systems }  Solar Thermal Power1 GEEN 4830 – ECEN 5007 7-11
  • 3. Course objectives }  1) Understand the fundamentals of the thermal conversion of solar energy into power. }  2) Understand the potential and limitations of STP as a major source of renewable electricity. }  3) Understand the basics of the different technologies known as Concentrating Solar Power (CSP), including technical and economical aspects. }  4) Have a basic knowledge of the different aspects that a STP project involves. }  5) Get familiar with different types of simulation tools2 GEEN 4830 – ECEN 5007 7-11
  • 4. Course plan}  Introduction}  Solar resource}  Brief review of basic Thermodynamics and Heat Transfer topics}  Fundamentals of High Temperature Solar Thermal Systems}  Technologies. Description, economics, intro to design and analysis issues }  Parabolic Troughs }  Central Receivers }  Linear Fresnel Concentrators }  Parabolic dishes}  Integration of STP plants }  Dispatchability. Thermal Storage. Hybridization}  Simulation tools 3 GEEN 4830 – ECEN 5007 7-11
  • 5. Solar Energy }  Solar Energy (Britannica Online) }  “radiation from the Sun capable of producing heat, causing chemical reactions, or generating electricity. (…) the total amount of solar energy incident on Earth is vastly in excess of the world’s current and anticipated energy requirements. If suitably harnessed, this highly diffused source has the potential to satisfy all future energy needs. In the 21st century solar energy is expected to become increasingly attractive as an energy source because of its inexhaustible supply and its nonpolluting character, in stark contrast to the finite fossil fuels coal, petroleum, and natural gas.”4 GEEN 4830 – ECEN 5007 7-11
  • 6. Solar Energy }  Solar Energy (Wikipedia) }  “Solar energy is the radiant light and heat from the Sun that has been harnessed by humans since ancient times using a range of ever-evolving technologies. Solar radiation along with secondary solar resources such as wind and wave power, hydroelectricity and biomass account for most of the available renewable energy on Earth. Only a minuscule fraction of the available solar energy is used”. (wikipedia)5 GEEN 4830 – ECEN 5007 7-11
  • 7. Solar Energy }  Solar Power. Electricity generated (directly) from solar energy. }  Photovoltaic Conversion: PV Systems }  Thermal Conversion: Solar Thermal Power (Concentrating Solar Thermal Power)6 GEEN 4830 – ECEN 5007 7-11
  • 8. Solar Thermal Concentrating Systems Systems that make use of solar energy by first concentrating solar radiation and then converting it to thermal energy }  Uses: }  Electricity (Solar Thermal Power) }  Industrial Process Heat }  Absorption cooling }  Chemical processes }  …7 GEEN 4830 – ECEN 5007 7-11
  • 9. The  Energy  System  8 GEEN 4830 – ECEN 5007 7-11
  • 10. The energy system challenges }  Global warming, climate change }  Resource depletion }  Need for a deep change of the energy system }  Based mainly on renewable, rather than exhaustible sources }  Decentralized, generation close to consumption }  Efficient (cogeneration) }  Fair }  Transition will not be easy }  STP can play a major role in this context }  Clean }  Abundant }  Distributed }  Dispatchable9 GEEN 4830 – ECEN 5007 7-11
  • 11. Solar  resource  availability   Excelent Very good Good Inappropriate10 GEEN 4830 – ECEN 5007 7-11
  • 12. Solar  resource  availability.  The  Desertec  project   90 % of the total electricity demand could be supplied from STP plants covering 300x300 km2. Effcient transmission via HVDC would allow electricity supply to remote areas with3000 km moderate losses. DESERTEC project: STP plants in the Magreb Area to supply electricity for Europe EU25 and Africa 11 GEEN 4830 – ECEN 5007 7-11