期刊論文
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 | en |
ISSN | 0376-7388 |
期刊性質 | 國外 |
收錄於 | SCI EI |
產學合作 | |
通訊作者 | |
審稿制度 | 否 |
國別 | NLD |
公開徵稿 | |
出版型式 | ,紙本 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/108161 ) |