Rainwater evaporative cooling system driven by outdoor complementary wind-solar

From the viewpoint of rainwater resource utilization and the reduction of heat island erythema, proposes an evaporative cooling system. Presents the working process and operating principle of the system. Analyses its adaptation in hot and humid area. Suggests the calculation and design methods of main devices. Preliminary experimental results show that the system can effectively reduce the average temperature of road surface by about 10℃ in summer daytime in Guangzhou.