A Critical Review of Solid Materials for Low-Temperature Thermochemical Storage of Solar Energy Based on Solid-Vapour Adsorption in View of Space Heating Uses

Hao Wu (1) , Fabrice Salles (1) , Jerzy Zajac (1)

1 ICGM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier

The present report deals with low-temperature thermochemical storage for space heating, which is based on the principles of vapour adsorption onto solid adsorbents. With the aim of obtaining comprehensive information on the rationalized selection of adsorbents for heat storage in open sorption systems operating in the moist-air flow mode, various materials reported up to now in the literature are reviewed by referring strictly to the possible mechanisms of water vapour adsorption, as well as practical aspects of their preparation or their application under particular operating conditions. It seems reasonable to suggest that, on the basis of the current state-of-the-art, the adsorption phenomenon may be rather exploited in the auxiliary heating systems, which provide additional heat during winter's coldest days.

Mots clés: energy storage; low-temperature thermochemical storage; space heating uses; solid-vapour adsorption; open sorption systems; adsorption of water vapour; moist-air flow operating mode; porous adsorbents

Domaines: Matériaux

Hao Wu, Fabrice Salles, Jerzy Zajac. A Critical Review of Solid Materials for Low-Temperature Thermochemical Storage of Solar Energy Based on Solid-Vapour Adsorption in View of Space Heating Uses. Molecules, 2019, 24 (5), pp.945. ⟨10.3390/molecules24050945⟩. ⟨hal-02063747⟩