تسجيل الدخول
Novel solar still design using transparent waste bottles
تاريخ النشر
01/01/2024 12:00:00 ص
91
المؤلفون
Mohamed Elashmawy, Swellam W. Sharshir, Gamal B. Abdelaziz, Fuhaid Alshammari, Mohamed M.Z. Ahmed, A.M. Soliman
الوصف
With increasing pressure on the global climate under the high worm gases emissions of fossil fuel, the necessity of using renewable energy is rapidly increasing. This study proposed a new solar water desalination system using waste transparent bottles for freshwater production. Two concentric transparent bottles were used. The inner bottle was cut longitudinally and horizontally placed with upward cut direction and filled with black cotton wick saturated by saline water. The outer transparent tube was cut radially to insert the inner smaller bottle inside and then reassembled using a transparent tap. The proposed device was exposed to the sunrays that reached the black wick and the energy absorbed and transferred to the saline water. After a short time, the water evaporation appears and started to condensate on the inner surface of the outer transparent bottle and collected at the bottom of the bottle by gravity. The proposed device showed moderate performance with 30.28% thermal efficiency and 2.95 L/m2day freshwater productivity under August climatic conditions of Cairo city in Egypt. The proposed device reduced the freshwater cost per liter by almost 66.2%, reaching a very competitive level of $0.0042/L. The proposed device can cover the essential freshwater needs for one person/year with not only a reduction of 21.3 tons/year of CO2 emissions but also with a reuse of 117 kg/year of plastic waste bottles.
URL
https://www.sciencedirect.com/science/article/abs/pii/S0959652623042488?via%3Dihub
DOI
https://doi.org/10.1016/j.jclepro.2023.140090
الملخص
• Waste plastic bottles with black cotton wick were used for solar water desalination. • The system produced 2.95 L/m2day with 30.6 thermal efficiency in the Cairo climate. • Using waste bottles reduced the water cost by almost 66.2%, reaching $0.0042/L. • The system can reduce 21.3 tons/year of CO2 emissions for a person's water needs. • The system can reuse 117 kg/year of waste plastic bottles for a person's water needs.
الكلمات الدالة
Waste bottles Solar still Transparent plastic Low cost Wick Desalination