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Pillow Plate Heat Exchangers – Investigation of Flow Characteristics and Wetting Behavior at Single‐Flow Conditions
Author(s) -
Siebeneck Karl,
Popov Wjatscheslaw,
Stefanak Tobias,
Scholl Stephan
Publication year - 2015
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201400055
Subject(s) - materials science , wetting , heat exchanger , flow (mathematics) , mechanics , volumetric flow rate , falling (accident) , composite material , optics , mechanical engineering , engineering , physics , medicine , environmental health
Experimental and theoretical results on the flow pattern and film thickness of liquid falling films on the outside of a vertical pillow‐type plate heat exchanger are presented. With the experimental setup, the wetting of a pillow plate and the local film thickness can be determined. The calculated mean film thickness is compared to literature data with an experimental investigation of a flat plate to assess the presented evaluation technique. Correlations for the mean film thickness on a flat plate and a pillow plate are given. The minimum flow rate per wetted length for a pillow plate is investigated.