Study of an unstructured integrated solar captor - thermal storage for CSP

Benoit Fiers (1) , Raphaël Rousseau (1) , Didier Martin (1) , Jean-Jacques Bézian (2) , Olivier Quénard (3) , J.-P. Robert-Arnouil , Bila Nebbad

1 IMT Mines Albi - IMT École nationale supérieure des Mines d'Albi-Carmaux
2 RAPSODEE - Centre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement
3 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux

An integrated system composed of a solar captor and a thermal storage is presented. Both parts are made of unstructured granular materials, stacked and disposed under a solar concentrator. This system has been devised for being coupled with a "Beam-Down" type solar concentrator. Our first approach for designing that kind of integrated system is to analyze and to optimize both parts separately (the solar captor for one part and the thermal storage in packed bed for the other). Those preliminary studies have been realized thanks to a couple of dedicated experimental devices. Two points are guiding those studies: the economic need for a low cost installation, yielding to a highly unstructured conception of those porous media, and the opportunity to use the very high thermal performances of COFALIT, a product made of asbestos-based retreated waste. The main objective is then to integrate those optimized system in a global integrated device, the stakes of which are presented.

Mots clés: solar captor; thermal storage; sensible heat; concentrated solar power

Domaines: Thermique [physics.class-ph]

Benoit Fiers, Raphaël Rousseau, Didier Martin, Jean-Jacques Bézian, Olivier Quénard, et al.. Study of an unstructured integrated solar captor - thermal storage for CSP. International journal of energy, environment, economics, 2017, 24 (4), pp.419-436. ⟨hal-01686702⟩