Duplicating Freshwater Productivity of Adsorption Desalination System Using Aluminum Metal Filings

Water

Abdulrahim A. Al-Zahrani¹  Sharif F. Zaman¹  Hesham Alhumade¹  Hegazy Rezk²  Ahmed Askalany³ 

[1] Chemical and Materials Engineering Department, Faculty of Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia;College of Engineering at Wadi Addawaser, Prince Sattam Bin Abdulaziz University, Al-Kharj 11911, Saudi Arabia;Mechanical Department, Faculty of Technology and Education, Sohag University, Sohag 82524, Egypt;

关键词: freshwater;    adsorption desalination;    aluminum metal filings;    silica gel;    cooling;    renewable energy;   

DOI  :  10.3390/w13223231

来源: DOAJ

【 摘 要 】

In this paper, improving the overall heat transfer coefficient by adding aluminum species to silica gel has been studied theoretically. An adsorption desalination system is proposed, and a lumped theoretical model conducted to investigate employing the metal additives within the adsorbent bed with and without a heat recovery between condenser and evaporator. A 30% of the total mass of the adsorbent bed contents was considered to be replaced by aluminum species. According to this, the overall heat transfer coefficient has been increased by 260%, which shows a good impact on the performance of the adsorption system. Daily water productivity was increased by 70% at the worst-case, reaching up to 17 m³/day/ton of silica gel without heat recovery. By employing heat recovery with the metal filing, the daily water productivity reached 42 m³/day/ton of silica gel which is four times the productivity of the classic silica gel-based adsorption desalination system.

【 授权许可】

Unknown