Tentative study on adsorption-desorption chracteristics of porous adsorbent under periodic heat and moisture impulsion

Silica gel is chosen as the porous adsorbent for exp in this paper.In summer the natural adsorption desorption characteristics of silica gel are continuously measured with different particle diameters and layer thickness.It shows that particle diameters have little effects on the adsorption desorption characteristics,and the desorption adsorption behaviours just take place in the thin layer under the surface.The results prove to be of importance for using porous adsorbents to improve the thermal-moisture environment.