Heat exchange element and heat exchanger produced therewith

摘要

A heat exchange element is described having adjacent, heat-transferring, smooth walls ( 1 ) which, between each other, delimit flow channels ( 4 ) with preselected channel widths (B) for at least one fluid and are provided with undulations ( 6 ) which protrude on both sides and transversely relative to imaginary central planes ( 7 ), said undulations having preselected wavelengths (lambda) as well as apexes ( 9 a, 9 b) with radii of curvature (R) and apex spacings (W) measured transversely relative to the central planes ( 7 ). According to the invention inequalities 0.1<=B/W<=0.55 and R>=1.2 B apply at least partially to ratios of channel width (B)/apex spacing (W) and channel width (B)/radius of curvature (R) (FIG. 2).