Modeling of mass transfer Graetz problems in flat-plate thermal-diffusion columns for heavy water enrichment
學年 99
學期 1
出版(發表)日期 2011-01-01
作品名稱 Modeling of mass transfer Graetz problems in flat-plate thermal-diffusion columns for heavy water enrichment
作品名稱(其他語言)
著者 Yeh, Ho-ming; Ho, Chii-dong; Wang, Chiung-jeng; Tu,Jr-wei; Guo, Jia-jan
單位 淡江大學化學工程與材料工程學系
出版者 Amsterdam: Elsevier BV
著錄名稱、卷期、頁數 Taiwan Institute of Chemical Engineers. Journal 42(1), pp.50-57
摘要 The mass transfer Graetz problem of flat-plate thermal-diffusion columns for heavy water enrichment was investigated. An orthogonal expansion technique was used to solve the laminar counter-current flat-plate thermal-diffusion column separation problems under flow-rate fraction variations and feed position. The present theoretical predictions for the degree of separation were solved based on the separation variable method. Positive and negative eigen-values are needed for the enriching and stripping sections, respectively, during the calculation procedure. The results show that the degree of separation increases with decreasing the feed flow rate and the maximum degree of separation is obtained for feed positions δ=0.5 and feed concentration CF=0.385. Moreover, the theoretical predictions are in better agreement with the experimental results than those predicted using the transport equation in the previous works.
關鍵字 Mathematical modeling;Separation;Mass transfer;Thermal diffusion;Graetz problems
語言 en
ISSN 1876-1070 1876-1089
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Ho, Chii-dong
審稿制度
國別 NLD
公開徵稿
出版型式 ,電子版,紙本
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