Experimental Study on a Novel Solar Watering Tube for Producing Water from the Air

摘要

In this paper, one novel solar adsorption watering tube was designed. Solar watering tube (SWT) is an independent unit producing water from air, which uses solar energy to drive the production process. Compared with the traditional methods of producing water, the production process of SWT bases on adsorption/desorption theory. The influence of operating conditions on the SWT was investigated. Under the typical weather conditions, as follows, the ambient temperature was about 20°C～35°C, ambient relative humidity was about 44%～74%, and the solar radiation was about 22MJ.d-1m-2, the adsorbent bed temperature could reach 222°C in the day and cooled down to about 40°C in the night. A single SWT could produce about 90ml water one day.