REDUCTION OF ENVIRONMENTAL HEAT ACCUMULATION AND SAVING ENERGY IN SUMMER TIME UTILIZING THE WATER EVAPORATION

Abstract

The function to cut the heat flux of solar radiation that a building material made of porus media has is investigated through laboratory experiments. It has been shown that the ratio of latent heat flux due to water evaporation to the radiated energy flux is a unique function of the degree of water saturation of the material. Also the functional form has been given to obtain the equation describing the change in water content in the material. This enables us to water the material using the data of time series of varing radiation and relative humidity.