Performances and modelling of a circular moving bed thermochemical reactor for seasonal storage

Joël Wyttenbach, Jacques Bougard, Gilbert Descy, Oleksandr Skrylnyk, Emilie Courbon, Marc Frère and Fabien Bruyat

Applied Energy, 2018, vol. 230, issue C, 803-815

Abstract: A novel thermochemical reactor was designed, built, and tested at Besol’s and CEA-INES’ labs. Its circular shape and its vibrating bed allow to move the solid hydrate constantly, therefore increasing turbulence in the moist air heat and mass transfer region. A reactor model was developed and identified in order to calculate its performances over a wide range of operating conditions and to understand what are the key factors leading to increased performances, especially regarding the specific behavior of the composite material made of calcium chloride incorporated in a silica gel matrix. New kinetic equations were developed while combining sorption and porous medium physical phenomena. The model was further refined with a 10 layers solid bed spatial discretization. However vibrations actually mix those layers, which would require a more detailed approach. Nevertheless, outlet parameters were predicted in both modes with a deviation lower than 0.72 K equivalent.

Keywords: Thermochemical reactor; Circular vibrating bed; Performance test; Thermodynamic model; Seasonal storage; Space heating (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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DOI: 10.1016/j.apenergy.2018.09.008

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