教師資料查詢 | 類別: 期刊論文 | 教師: 何啟東 Ho, Chii-dong (瀏覽個人網頁)

標題:Theoretical and experimental studies of flux enhancement with roughened surface in direct contact membrane distillation desalination
學年101
學期2
出版(發表)日期2013/04/15
作品名稱Theoretical and experimental studies of flux enhancement with roughened surface in direct contact membrane distillation desalination
作品名稱(其他語言)
著者Ho, Chii-Dong; Chang, Hsuan; Chang, Cheng-Liang; Huang, Cheng-Hao
單位
出版者
著錄名稱、卷期、頁數Journal of Membrane Science 433, pp.160-166
摘要A new design of direct contact membrane distillation (DCMD) using roughened-surface flow channel for enhancement of heat transfer was proposed for increasing the pure water productivity in saline water desalination. The roughened surface was fabricated using siphonic-blasting with aluminum oxide (Al2O3) sand grains and arc spraying for Ni film coating. Experimental study has demonstrated its feasibility and up to 37% of performance enhancement was obtained for the experimental system. A mathematical model considering heat and mass transfer mechanisms has been developed and incorporated with experimental data for evolving a correlation for a heat transfer coefficient correction factor. The correlation is expressed as relative roughness and can be used for predicting the heat transfer coefficient for roughened-surface channels. Considering the tradeoff between the flux enhancements at the expense of energy consumption, an optimized level of roughness can be determined.
關鍵字Direct contact membrane distillation;Desalination;Heat transfer;Surface roughness;Temperature polarization
語言英文
ISSN0376-7388
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者
審稿制度
國別荷蘭
公開徵稿
出版型式,紙本
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