Introduction
Shell and tube type, and plate type heat exchangers are the most common type of heat exchanger, but there other heat exchangers. One such heat exchanger is the Spiral heat exchanger shown in this 3D model.
Additional Resources
https://www.process-heating.com/articles/85208-no-more-fouling-the-spiral-heat-exchanger
http://www.heseco.com/spiral-heat-exchangers.htm
https://en.wikipedia.org/wiki/Heat_exchanger