EXPERIMENT AND ANALYSIS OF SOLAR POWERED SOIL EVAPORATION WATER EXTRACTION BASED ON POROUS MEDIA DRILL PIPE

Hei Bingsen; Li Xiaotian; Quan Xiaojun; Li Siyu

doi:10.19912/j.0254-0096.tynxb.2024-0509

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (8) : 498-505. DOI: 10.19912/j.0254-0096.tynxb.2024-0509

EXPERIMENT AND ANALYSIS OF SOLAR POWERED SOIL EVAPORATION WATER EXTRACTION BASED ON POROUS MEDIA DRILL PIPE

Hei Bingsen¹, Li Xiaotian², Quan Xiaojun¹, Li Siyu¹

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Abstract

This research develops a device that uses a Fresnel lens to focus sunlight to heat a porous media drill pipe to extract water from the soil. After proving the feasibility, the device is optimized to increase the temperature of the high-temperature area of the drill pipe and strengthen the drill pipe water permeability, and studies the effect of soil moisture content and drill pipe water permeability on water extraction capacity. The results show that under the condition of 27.5% moisture content and 152 W solar spot power, the optimized device can take 45 g of water per hour. The experimental device can operate solely on sunlight without inputting other forms of external energy, and its energy utilization efficiency is as high as 20.41%.

Key words

solar energy / evaporation / water resources / soil moisture content / two phase flow / liquid-gas phase change

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Hei Bingsen, Li Xiaotian, Quan Xiaojun, Li Siyu. EXPERIMENT AND ANALYSIS OF SOLAR POWERED SOIL EVAPORATION WATER EXTRACTION BASED ON POROUS MEDIA DRILL PIPE[J]. Acta Energiae Solaris Sinica. 2025, 46(8): 498-505 https://doi.org/10.19912/j.0254-0096.tynxb.2024-0509

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