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Energies 2017, 10(8), 1078; doi:10.3390/en10081078

Heat Transfer Fluid Temperature Control in a Thermoelectric Solar Power Plant

Normagrup Technology S.A., 33420 Llanera, Asturias, Spain
Grupo TSK PCyT de Gijón, 33203 Gijón, Spain
Department of Electrical Engineering, University of Oviedo, 33203 Gijón, Asturias, Spain
Author to whom correspondence should be addressed.
Received: 10 May 2017 / Revised: 17 July 2017 / Accepted: 21 July 2017 / Published: 25 July 2017
(This article belongs to the Section Energy Storage and Application)
View Full-Text   |   Download PDF [3924 KB, uploaded 25 July 2017]   |  


Thermoelectric solar plants transform solar energy into electricity. Unlike photovoltaic plants, the sun’s energy heats a fluid (heat transfer fluid (HTF)) and this, in turn, exchanges its energy, generating steam. Finally, the steam generates electricity in a Rankine cycle. One of the main advantages of this double conversion (sun energy to heat in the HTF-Rankine cycle) is the fact that it facilitates energy storage without using batteries. It is possible to store the heat energy in melted salts in such a way that this energy will be recovered when necessary, i.e., during the night. These molten salts are stored in containers in a liquid state at high temperature. The HTF comes into the solar field at a given temperature and increases its energy thanks to the solar collectors. In order to optimize the sun to HTF energy transference, it is necessary to keep an adequate temperature control of the fluid at the output of the solar fields. This paper describes three different algorithms to control the HTF output temperature. View Full-Text
Keywords: thermal power plant; heat transfer fluid (HTF); process modeling; temperature control thermal power plant; heat transfer fluid (HTF); process modeling; temperature control

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Barcia, L.A.; Peon, R.; Díaz, J.; Pernía, A.; Martínez, J.Á. Heat Transfer Fluid Temperature Control in a Thermoelectric Solar Power Plant. Energies 2017, 10, 1078.

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