Distillate flux enhancement of direct contact membrane distillation modules with inserting cross-diagonal carbon-fiber spacers
學年 110
學期 1
出版（發表）日期 2021-12-09
作品名稱 Distillate flux enhancement of direct contact membrane distillation modules with inserting cross-diagonal carbon-fiber spacers
作品名稱（其他語言）
著者 Chii-Dong Ho; Luke Chen; Jun-Wei Lim; Po-Hung Lin; Pin-Tsen Lu
單位
出版者
著錄名稱、卷期、頁數 Membranes 11(12), 973
摘要 A new design of direct-contact membrane distillation (DCMD) modules with cross-diagonal carbon-fiber spacers of various hydrodynamic angles in flow channels to promote turbulence intensity was proposed to enhance pure water productivity. Attempts to reduce the temperature polarization coefficient were achieved by inserting cross-diagonal carbon-fiber spacers in channels, which create wakes and eddies in both heat and mass transfer behaviors to enhance the permeate flux enhancement. A simplified equation was formulated to obtain the theoretical predictions of heat transfer coefficients in the current DCMD device. The permeate fluxes and temperature distributions of both hot and cold feed streams are represented graphically with the inlet volumetric flow rate and inlet temperature of the hot saline feed stream as parameters. The higher distillate flux of countercurrent-flow operations for saline water desalination was accomplished as compared to the concurrent-flow operations of various hydrodynamic angles. The results show that the agreement between the theoretical predictions and experimental results is reasonably good. The effects of countercurrent-flow operations and inserting carbon fiber spacers have confirmed technical feasibility and device performance enhancement of up to 45%. The influences of operating and design parameters on the pure water productivity with the expense of energy consumption are also discussed.
關鍵字 hydrodynamic angles;temperature polarization effect;carbon-fiber spacers;pure water productivity
語言 en
ISSN 2077-0375
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Chii-Dong Ho
審稿制度 是
國別 CHE
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/121654 )

SDGS 潔淨水與衛生,可負擔的潔淨能源