臺灣國際科展

Extracting Water from Humid Air Using Solar Energy in Humid Areas

科展類別
臺灣國際科展作品
屆次
2017年
科別
環境工程
得獎情形
二等獎
學校名稱
Almoatasim School
作者
Saeed Abdullah Alzahrani;Osamah Abdullah Alzahrani
關鍵字
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摘要或動機

The study aims to evaluate the technique of extracting water from humid air using solar energy through greenhouses in local areas. This technique is believed to provide limited amount of water in areas where potable water is not accessible or abundant. To solve this problem a pyramid-shaped device was designed, it is made of glass panels ad equipped with glass doors, fans operated by solar energy, and multiple shelves covered with fabric to act as Absorbent Calcium Chloride (CaCl2) with a 30% concentration. The doors are open during the night for absorption and closed during the day for energy-generating. Humidity, temperature, and atmospheric pressure are measured every two hours. The amount of water extracted in this area in one full day was around 3.0 liters a day for every square meter. Perhaps the limited amount of water is due to low level of humidity in the area: an average of 50% and temperature of F10 Celsius at night. However, the device itself is independent, does not need power sources, water sources, or infrastructure, can be installed in various places depending on humidity level as well as having the possibility of increasing number or size of device. This makes the device a promising, alternative and environmental friendly solution to produce water. Cost-effective and lighter material can be used to make the device, which will produce an easy-to-use and affordable devices. It is an area in need for further research to improve and further develop it.


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Extracting Water from Humid Air Using Solar Energy in Humid Areas 418 KB Adobe Reader(Pdf)檔案