Experimental Design of the Performance Testing System for Solar Steam Generation
In order to meet the need of testing the photothermal evaporation performance of various photothermal materials and the experimental teaching needs,a performance testing system is designed for solar steam generation.Two typical metal-based photothermal films(nanoporous Ag and nanoporous Cu)are used as examples to systematically measure their solar steam generation performance(evaporation efficiency,evaporation rate and other indexes).The test results show that both of the two metal-based films exhibit excellent photothermal evaporation ability.Under the light intensity of 1 kW/m2,the nanoporous Ag film shows an evaporation efficiency of up to 92.6%and an evaporation rate of 1.42 kg/(m2·h),while the nanoporous Cu film exhibits an evaporation efficiency of up to 92.9%and an evaporation rate of 1.47 kg/(m2·h),which verifies the feasibility of the testing system.Meanwhile,the experiment can also be used for experimental teaching in the major of materials science and engineering.
solar steam generationphotothermal materialsevaporation efficiencyevaporation rate