Thermochemical Storage: First Results of Pilot Storage System with Moist Air

Sorption Heat Storage

“…Work on an open sorption system containing a packed bed with KAl (SO 4 ) 2 Á12H 2 O was carried out by CEA in France (Marias et al, 2011). Studies on crystal level into the detailed mechanisms involved in the hydrationdehydration transition were carried out by …”

Thermochemical process for seasonal storage of solar energy: Characterization and modeling of a high density reactive bed

“…Accordingly to the Carman-Kozeny correlation [24] (valid for beds of quite spherical grains), the permeability depends on the diameter of the grains: (15) with d g the diameter of the grains and ε the porosity of the bed. Two samples of salt powder (samples 2 and 3), with similar thickness and energy density, but with different sizes of grains have been experimented with the same operating conditions during hydrations (see Table 1).…”

“…The synthesis (or hydration) of the solid is exothermic (heating stage), while its decomposition (or dehydration) requires a heat input (storage stage). Most of thermochemical systems operate with pure steam [5][6][7][8][9][10], but the feasibility and value of systems running with moist air is currently investigated [11][12][13][14][15], and seems to be promising [16]. However, up to date there is no completed seasonal storage based on a thermochemical process [3].…”

Experimental investigation of an innovative thermochemical process operating with a hydrate salt and moist air for thermal storage of solar energy: Global performance

“…Sorption processes are increasingly being investigated for storage purposes, either regarding reactive materials or the workings of the storage system [3]. Several prototypes of sorption storage have been experimented with [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] at a small scale; the largest is the SOLUX system, which stores 60 kWh [7]. Nevertheless, no large-scale seasonal project has yet been completed [20].…”