會議論文

標題 Modeling and simulation of solid NaBH4 tablet controlled release systems
學年 101
學期 2
發表日期 2013/03/15
作品名稱 Modeling and simulation of solid NaBH4 tablet controlled release systems
作品名稱(其他語言)
著者 陳逸航
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 The 2nd International Conference on Engineering and Applied Science
會議地點 Tokyo, Japan
摘要 In this work, water diffused through Nylon 6,6 porous membranes to dissolve solid NaBH4 tablets. The dissolved NaBH4 solution with a saturated concentration back-diffused through the porous membrane by concentration difference. In order to control the NaBH4 diffusion flux, mathematical models were built to describe the solid NaBH4 tablet controlled release systems. From the time frame view-point of NaBH4 dissolution, there are two steps: (1) NaBH4 dissolution back-diffuses through the porous membrane to the bulk solution. (2) The internal NaBH4 concentration continuously diffuses through the porous membrane until NaBH4 concentration difference between internal and external approaches zero. From sensitivity analysis, design and operating variables of NaBH4 controlled release system are: The membrane thickness, porosity, membrane area, and operating temperature and external solution volume. The simulation result shows the membrane thickness and operating temperature dominate the NaBH4 flux. Finally, the experiment was set-up. The Nylon 6,6 porous membrane with a 137m thickness and 1.8cm diameter was placed between solid NaBH4 tablets and water, the values of which were 1.66g and 30g respectively. The water penetration and solid NaBH4 dissolution times are 1 sec and 2 hrs. The external NaBH4 concentration was measured by iodine titration method once every 30 mins. The experiment result fit with the simulation result.
關鍵字 Controlled release;Solid NaBH4 tablet;Design; Operation
語言 英文
收錄於
會議性質 國際
校內研討會地點
研討會時間 20130315~20130317
通訊作者 yihhang@mail.tku.edu.tw
國別 日本
公開徵稿 Y
出版型式 紙本;電子版
出處 The 2nd International Conference on Engineering and Applied Science