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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

FALLING LIQUID FILM FLOW OVER THE WAVY SURFACE OF VERTICAL PILLOW PLATES − A NUMERICAL INVESTIGATION

Get access (open in a dialog) DOI: 10.1615/IHTC16.mpf.024081
pages 6575-6582

Sinopsis

Pillow plates are an innovative heat transfer equipment type which has several advantages as compared to conventional heat exchangers. They show a high thermo-hydraulic performance, being fully welded, hermetically sealed, light and cheap, while their manufacturing is easy. In many applications of pillow plates, falling liquid films on their wavy outer surface are prevailing; yet little is known about the characteristics of this film flow. This is why the pillow-plate heat exchangers are mostly designed based on empirical knowledge of the manufacturer, which hinders full exploitation of their potential. In this work, a first attempt is made to numerically simulate the film flow over the pillow-plate surface. Using the methods of Computational Fluid Dynamics, better insights into the physical flow characteristics are gained. The obtained results are compared to experimental film visualization data, and qualitative conclusions regarding the capabilities of the simulations to predict the liquid film flow behavior are drawn.