Mass Flux Enhancement of Countercurrent- Flow Direct Contact Membrane Distillation in Seawater Desalination Systems
學年 102
學期 1
發表日期 2013-11-22
作品名稱 Mass Flux Enhancement of Countercurrent- Flow Direct Contact Membrane Distillation in Seawater Desalination Systems
作品名稱（其他語言）
著者 何啟東; Huang, Cheng-Hao; Tsai, Feng-Chi; Chen, Wei-Ting
作品所屬單位 淡江大學化學工程與材料工程學系
出版者
會議名稱 台灣化學工程學會60周年年會暨國科會化工學門成果發表會
會議地點 臺北市, 臺灣
摘要 The theoretical predictions of pure water productivity in a parallel-plate direct contact membrane distillation (DCMD) module using roughened-surface flow channel for enhancement of heat transfer were obtained under countercurrent-flow operations, and the improvements of device performance for increasing the pure water productivity in saline water desalination were achieved as compared that to the concurrent-flow operation. The roughened surface was fabricated using siphonic-blasting with aluminum oxide ( 2 3 Al O ) sand grains and arc spraying for Ni film coating, and correlated to predict the heat transfer coefficient for the DCMD device with using roughened-surface channels. The pure water productivity and temperature distributions of both hot and cold feed streams are represented graphically with the feed velocity and the inlet saline temperature as parameters. Both effects of flow pattern and roughened surface have demonstrated the technical feasibility and up to 46.39% of performance enhancement was obtained for the countercurrent-flow DCMD system. The influences of operation and design parameters on the pure water productivity with the expense of energy consumption are also discussed.
關鍵字 Countercurrent flow;Direct contact membrane distillation;Temperature polarization Mass flux increment;Eddy promoter
語言 en_US
收錄於
會議性質 國內
校內研討會地點 無
研討會時間 20131122~20131123
通訊作者 Ho, Chii-Dong
國別 TWN
公開徵稿 Y
出版型式 電子版
出處 台灣化學工程學會第60週年年會暨國科會化工學門成果發表
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