Shell and tube heat exchangers are widely used in process
industries. During the last decades roughened tubes have been
used instead of smooth tubes for heat exchangers with different
applications. Roughened tubes are a group of tubes with a
deformed surface. Within this group, there are different subtypes
of roughness, like corrugated tubes, ripped tubes or fluted tubes.
This study is focused on helically corrugated tubes, manufactured
by a cold rolling process.