INFLUENCE OF SOLAR SUB-ATMOSPHERIC PRESSURE ON PERFORMANCE OF HUMIDIFICATION AND DEHUMIDIFICATION DESALINATION SYSTEM

Wang Yue; Ji Xu; Yan Leilei; Deng Jia; Wang Cong; Li Yongyuan

doi:10.19912/j.0254-0096.tynxb.2020-0648

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (3) : 251-255. DOI: 10.19912/j.0254-0096.tynxb.2020-0648

INFLUENCE OF SOLAR SUB-ATMOSPHERIC PRESSURE ON PERFORMANCE OF HUMIDIFICATION AND DEHUMIDIFICATION DESALINATION SYSTEM

Wang Yue¹, Ji Xu², Yan Leilei¹, Deng Jia², Wang Cong², Li Yongyuan¹

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Abstract

In order to increase the freshwater production, a solar humidification and dehumidification system under sub-atmospheric pressure for desalination is proposed. The moisture content of the humid air increased by decreasing the humidifier pressure. The freshwater is collected in the liquid ring vacuum pump and the dehumidifier. The freshwater production increases when the moisture content in humid air increases. The humidifier pressure decreases from 90 to 70 kPa, the humidity can increase 154.9 g/kg when the humid air temperature is 70 ℃; When the humidifier pressure is 70 kPa, the freshwater is above 1.8 kg/h from 12:00 to 14:00 and the maximum output is 2.1 kg/h. The GOR reaches up to 1.7.

Key words

desalination / solar energy / humidification and dehumidification / subatmospheric pressure / moisture content / performance analysis

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Wang Yue, Ji Xu, Yan Leilei, Deng Jia, Wang Cong, Li Yongyuan. INFLUENCE OF SOLAR SUB-ATMOSPHERIC PRESSURE ON PERFORMANCE OF HUMIDIFICATION AND DEHUMIDIFICATION DESALINATION SYSTEM[J]. Acta Energiae Solaris Sinica. 2022, 43(3): 251-255 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0648

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