Heat, Radiation and Mass Transfer Characteristics of an Attachable Sawdust Inner Wall Plate with High Hygroscopicity and High Thermal Conductivity

Abstract

In order to overcome hot and humid air in summer days and dried up air in winter days in our inner life space, it may be a good choice to attach a wall plate which breathes the moisture on the inner room wall. It would be better if we could add the plate a function to improve the radiation transfer between the human body or cloth and the inner wall plates. As a candidate of such a wall plate, we try to produce a plate of sawdust which is filled in a porous metal honeycomb-structured plate. The equilibrium moisture mass content of the plate is measured to evaluate the temperature and humidity dependence of hygroscopicity, and the moisture permeability, thermal conductivity and emittance of the plate are measured. Higher hygroscopicity and thermal conductivity of the proposed plate are demonstrated.