Flow phenomena and local heat and mass transfer in corrugated passages

✍ Scribed by Dipl.-Ing. Gerd Gaiser; Priv.-Doz. Dr.-Ing. habil Volker Kottke

• Publisher: John Wiley and Sons
• Year: 1989
• Tongue: English
• Volume: 12
• Category: Article
• ISSN: 0930-7516
• DOI: 10.1002/ceat.270120157

✦ Synopsis

Flow phenomena, local heat and mass transfer and pressure drop of corrugated passages in process equipment are examined. Based on a method for measuring local heat and mass transfer, developed in previous investigations, a procedure has been formulated for the determination of local heat and mass transfer in corrugated passages. Using the analogy between heat and mass transfer, this technique allows the determination of heat transfer distributions in any structures with high local resolution. The corresponding pressure drop is presented together with the local and integral heat and mass transfer of different structures. It is shown that differences in heat and mass transfer as well as in pressure drop are due to different flow phenomena which also characterize mixing behaviour .

1 Introduction 2 Measuring Technique

Corrugated passages are often used for enhancement of heat and mass transfer, mixing and for a homogeneous residence time distribution in process equipment. Examples are plate heat exchangers, regenerators, adsorbers, catalysts, column inserts and static mixers. Characteristic for the correct design of such structures is the maximum possible improvement in the local and integral heat and mass transfer at an acceptable pressure drop. Flow phenomena also determine the mixing and residence time characteristics and are therefore of particular interest.