Study on the Strengthening Technology of Salt Solarization

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Abstract Based on the efficient solar steam generation technology, the activated carbon filter cotton, sponge, scouring cloth and sintered stainless steel were used to form different two-layer combinations and optimized to promote the generation of steam. The experimental results show that under the light intensity of 1 000 W·m^-2, the double-layer combination of activated carbon filter cotton and sponge can promote the evaporation of water more efficiently. The height of the light-to-heat conversion layer from the water surface is about 4 mm, when only one layer is laid (thickness is 3 mm), there is a better evaporation effect; in the presence of salt accumulation, there is still an efficient water evaporation rate within 10 hours; after 10 cycles of experiments, the double-layer structure still ensures good evaporation effect. The two low-cost materials selected in this paper can promote the conversion of water vapor produced by solar light and heat. The water evaporation rate is 1.2 kg·m^-2·h^-1, and the thermal efficiency is 78%, which works well. The work of this article provides a new way for efficient salt solarization.

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	Articles by authors
	Huang Qunwu
	Tian Zuoxu
	Wang Yiping

Keywords： solar energy； efficient solar steam generation； low-cost materials； salt solarization

Received 2020-06-29;

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Huang Qunwu, Tian Zuoxu, Wang Yiping.Study on the Strengthening Technology of Salt Solarization[J] Chemcial Industry and Engineering, 2021,V38(3): 49-56

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