A thermodynamic modeling of 2-bed adsorption desalination to promote main equipment performance

Abstract

Adsorption desalination utilizes the discrete adsorption of the water vapor from the evaporator, and is capable of being discharged to the condenser. This study illuminated an advanced cycle of mass and heat recovery among beds, condensers, and evaporators. Morover, the thermodynamic modeling of adsorption desalination systems (ADS) under different operating conditions was investigated. Furthermore, its effect on the evaporator vapor production and the water vapor adsorption and desorption in the adsorption beds were accounted for. Parenthetically, the mathematical model of ADS thermodynamics was validated with the experimental data. Besides, the advanced ADS modeling was conducted via mass and heat recovery among beds, condensers, and evaporators. In addition to the amount of desalinated water, the time history chart of the equipment applied in the process with and without the thermal and mass recovery is also illustrated. Finally, under such operating conditions, the specific daily water production (SDWP) advanced ADS is 153% higher than conventional ADS.

Performance evaluation of an HDH desalination system using direct contact packed towers: experimental and mathematical modeling study

“…The reason for this is population growth and increased industrial, agricultural, and economic activities (Zubair et al 2018;Amirfakhraei et al 2020). The United Nations estimates that by 2025, about 1,800 million people worldwide will face severe water shortages (Amirfakhraei et al 2021a). To relieve serious shortages of potable water supplies, water desalination methods and relevant devices have become attractive (He et al 2018;Amirfakhraei et al 2021b).…”