Cross corrugated media and related method

A fill sheet for assembly into a fill pack for cooling a cooling medium in a cooling tower, the fill sheet comprising:

• a first end;
• a second end extending substantially parallel to the first end and generally perpendicularly relative to a longitudinal axis, the first and second ends extending substantially parallel to a lateral axis of the fill sheet;
• a plurality of flutes extending from the first end toward the second end at a first flute angle, the plurality of flutes including a first flute with a first edge and a second flute having a second edge, the first edge being directly connected to the second edge along a length of the first and second flutes, the plurality of flutes guiding airflow along the sheet from the first end toward the second end and defining a flute height;
• and
• microstructure defined on the plurality of flutes, the microstructure including first top flat strips, first bottom flat strips and first conduit sides connecting the first top flat strips to the first bottom flat strips, the microstructure defining a microstructure depth, the first top flat strips and the first bottom flat strips extending parallel to the lateral axis, the flute height being greater than the microstructure depth, arcuate surfaces defined and continuously extending between the first top flat strips and the first bottom flat strips.

A fill sheet for assembly into a fill pack for cooling a cooling medium in a cooling tower, the fill sheet comprising:

• a first end;
• a second end extending substantially parallel to the first end and generally perpendicularly relative to a longitudinal axis, the first and second ends extending substantially parallel to a lateral axis of the fill sheet;
• a plurality of flutes extending from the first end toward the second end at a first flute angle, the plurality of flutes including a first flute with a first edge and a second flute having a second edge, the first edge being directly connected to the second edge along a length of the first and second flutes, the plurality of flutes guiding airflow along the sheet from the first end toward the second end and defining a flute height;
• and
• microstructure defined on the plurality of flutes, the microstructure including first top flat strips, first bottom flat strips and first conduit sides connecting the first top flat strips to the first bottom flat strips, the microstructure defining a microstructure depth, the first top flat strips and the first bottom flat strips extending parallel to the lateral axis, the flute height being greater than the microstructure depth, the first conduit sides comprised of a first arcuate fillet directly connected to a second arcuate fillet.