抄録
Despite the atmospheric air entertains a bast amount of the heat energy, supplied by the rora radiation, generally less remarked to utilize the heat. In the preliminary studies, it was ascer-tained that the utility value of the air heat is a high degree, when the suitable type of concentrator was adapted, then in this studies, it was undertaken to obtain the basic data necessary to design the film surface type concentrator, and consequently obtained the formulas for (1) the coefficient of heat transfer between air and evaporation surface, when used the cotton clothes,(2) the temperature of evaporation surface, under different atmospheric condition and density of the sea water and brine,(3) a neccessary evaporation area, suitable to the atmospheric condition and (4) the relation between the evoporation area and the utility rate of the air heat.
