出版日期：2011-01-01 00:00:00

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

通訊作者：Ho, Chii-dong

審稿制度：否

國別：NLD

出版型式：電子版,紙本