Novel coiled hollow fiber module for high-performance membrane distillation

被引：3

作者：

Almahfoodh, Sarah ^{[1
,2
]}

Qamar, Adnan ^{[1
]}

Kerdi, Sarah ^{[1
]}

Ghaffour, Noreddine ^{[1
,3
]}

机构：

[1] King Abdullah Univ Sci & Technol KAUST, Water Desalinat & Reuse Ctr WDRC, Thuwal 239556900, Saudi Arabia

[2] King Abdullah Univ Sci & Technol KAUST, Chem & Biol Engn Program, Div Phys Sci & Engn PSE, Thuwal 239556900, Saudi Arabia

[3] King Abdullah Univ Sci & Technol KAUST, Environm Sci & Engn Program, Biol & Environm Sci & Engn BESE Div, Thuwal 239556900, Saudi Arabia

来源：

WATER RESEARCH | 2024年 / 251卷

关键词：

Membrane distillation; Hollow fiber; Localized heating; Module design; Multiscale simulations; Energy consumption; MASS-TRANSFER; SCALE; DCMD; DESALINATION; SIMULATION; DESIGN;

D O I：

10.1016/j.watres.2024.121127

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Membrane distillation (MD) scale-up is challenged by ineffective heat recovery and the temperature polarization effect. Direct contact membrane distillation (DCMD) modules suffer high thermal conduction losses due to feed flow direction along the length of the membrane, resulting in low thermal efficiency. We propose a novel module design named coiled hollow fiber (CHF) to decouple the flow direction from the membrane surface in hollow fiber (HF) DCMD. Experimental and computational analyses were employed to compare the performance of CHF and the conventional design. The CHF module design successfully mitigates the TP effect in HF DCMD, increasing the flux by 148 % and 163 % in cross -flow and localized heating (LH) modes, respectively. Moreover, CHF operated in LH mode exhibits the lowest energy consumption of all configurations (81 % decrease) compared to the conventional design. This novel module design represents a new pathway for efficient and highly performing DCMD module.

引用

页数：11

共 53 条

[1] Effect of module design and flow patterns on performance of membrane distillation process [J].