SUNLIGHT ABSORPTION FLUID AND DISTILLATION METHOD

摘要

PROBLEM TO BE SOLVED: To provide fluid having simple composition and efficiently absorbing sunlight energy and efficiently generating vapor before reaching its boiling point.SOLUTION: Fluid having TiN nanoparticles dispersed in water can absorb 80% or more of irradiated sunlight and convert it into heat. In addition, temperature only of the nanoparticles increases locally through irradiation of light to cause water around them to be boiled up, so that even if the entire fluid is kept at a relative low temperature, a large amount of water vapor is generated as compared with that of water of the same temperature. If nanoparticles absorb sunlight well, substances other than TiN can be used and dispersion medium of nanoparticles other than water may be applied. Sunlight absorption fluid of the present invention can be applied not only to medium converting solar heat into heat at a high efficiency but also to medium to be distillated efficiently at a low temperature.SELECTED DRAWING: Figure 1