A local kinetics of sorption model: theoretical background and application to the simulation of an ISOBIO demonstrator

N. Reuge, F. Collet, S. Moissette, M. Bart, S. Pretot & C. Lanos
The classic models describing the hygric mass transfers inside building materials seem unsuitable in the case of bio-based materials. They are based on the assumption of an instantaneous local equilibrium between relative humidity and water content evolving according to the diffusive fluxes and the sorption isotherms and predict much shorter times of stabilization than those obtained experimentally. A new approach is presented here, it frees from the local instantaneous equilibrium introducing a local kinetics to...
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