DECARTH

The energy density involved during a chemical reaction could make chemical heat storage an excellent candidate for decreasing buildings energy consumption. Previous research focusing on pure or composite salt in sorbent-based porous matrix (zeolite, silica gel…) showed that the energy density and the heat transfer remain low due to the swelling of the salt and the specific surface decrease. Recently, new approaches using honeycomb ceramics as porous matrix proved the feasibility of the concept. Yet further work is needed to characterize and optimize the energy density and the heat and mass transfer within such composite. This project aims at designing energy dense and high powered architecture materials using impregnated salt in porous ceramic matrix. The reactor optimal geometry will be designed based on the Constructal approach from a heat and mass transfer point of view. Prototypes of optimal reactor will be built by 3D robot casting and characterised on a thermal and energy bases.