Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 09, 2018 - September 12, 2018
To recycle silica byproducts and to moderate the heat-island phenomenon, a porous ceramic was prepared by mixing waste silica powder with clay and then firing the resultant mixture. The high water-absorption capacity of the ceramic was used to produce a greening material: a moss-covered porous ceramic. To examine the suppression ability of the temperature increase caused by solar-radiant heat on the moss-covered ceramic as well as to clarify the influence of water absorption in the sample on the temperature increase suppression effect, the surface temperature change of a moss-covered sample during solar radiant heat reception and the amount of water evaporated from the sample were measured simultaneously. Furthermore, to verify whether the moss-covered ceramic can reduce the indoor temperature, the heat flux acting between the sample rear surface and the rooftop floor of a testing structure was measured. The experimental results confirmed that the moss-covered and ceramic samples that could absorb sufficient water could suppress the temperature increase caused by solar radiant heat, and the moss-covered sample could suppress it for a longer time when compared to the ceramic sample.
