Modeling of Conjugated Heat Transfer in Direct-Contact Membrane Distillation of Seawater Desalination Systems
出版日期:2012-07-18 00:00:00
著者:Ho, Chii-dong
單位:淡江大學化學工程與材料工程學系; 淡江大學化學學系
出版者:Weinheim: Wiley - V C H Verlag GmbH & Co. KGaA
著錄名稱、卷期、頁數:Chemical Engineering & Technology 35(10), p.1765-1776
摘要:The modeling equations for the temperature distribution and temperature polarization profiles in a laminar concurrent-flow parallel-plate direct-contact membrane distillation (DCMD) module were developed theoretically. The analytical solutions for such conjugated Graetz problems in DCMD systems were obtained using the variable separation method with an orthogonal expansion technique extended in power series. A description of the average Nusselt number variations and temperature distributions of both the hot and cold feed streams is given. The feed velocity effect on the temperature profiles and average Nusselt number was examined and is reported by employing the computed eigenvalues and the relevant constants. The analytical results show that the initial saline temperature effect on the hot feed stream regarding the pure water productivity is more significant than that of the hot and cold feed stream velocity variations.
關鍵字:Conjugated Graetz problems;Desalination;Direct-contact membrane distillation;Heat transfer
語言:en
ISSN:1521-4125
期刊性質:國外
收錄於:SCI
通訊作者:Ho, Chii-Dong
審稿制度:是
國別:DEU
出版型式:電子版,紙本