Cu stp 01_intro

SOLAR THERMAL POWER!GEEN 4830 – ECEN 5007!

Manuel A. Silva Pé[email protected]!

1. Introduction!

Contents

}  Course objectives and contents }  Solar Energy }  Solar Thermal Concentrating Systems }  Solar Thermal Power

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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 tools

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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

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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.”

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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)

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Solar Energy

}  Solar Power. Electricity generated (directly) from solar energy. }  Photovoltaic Conversion: PV Systems }  Thermal Conversion: Solar Thermal Power (Concentrating

Solar Thermal Power)

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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 }  …

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The  Energy  System  7-11 8 GEEN 4830 – ECEN 5007

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 }  Dispatchable

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Excelent Very good Good Inappropriate

Solar  resource  availability  

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3000 km

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 with moderate losses. DESERTEC project: STP plants in the Magreb Area to supply electricity for Europe and Africa

Solar  resource  availability.  The  Desertec  project  

EU25

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