WEB, WEB MATRIX, AND ROTOR FOR HEAT EXCHANGER

A web (1) for a rotary heat exchanger (13), said web (1) being configured for transfer of thermal energy and/or moisture to and/or from a fluid. The web (1) comprises a plurality of first profiled sections (2) and a plurality of second profiled sections (3) which are configured to protrude in opposite directions, each protrusion comprising a fluid passage (4). Said first profiled sections (2) and said second profiled sections (3) form a plurality of fluid flow channels (5), each fluid flow channel (5) having a main fluid flow axis (Al) and being configured to allow fluid flow at least partially along said main fluid flow axis (Al). Each fluid flow channel (5) is formed by alternating at least one first profiled section (2) and at least one second profiled section (3) along said main fluid flow axis (Al) and by aligning said fluid passages (4) of said alternatingly arranged first profiled section(s) (2) and second profiled section(s) (3). Each fluid flow channel (5) comprises at least one lateral opening (6) allowing said fluid flow to at least partially travel between adjacent fluid flow channels (5).