Heat transfer element for a rotary regenerative heat exchanger

摘要

A rotary regenerative heat exchanger (1) employs heat transfer elements (100) shaped to include notches (150), which provide spacing between adjacent elements (100), and undulations (corrugations) (165,185) in the sections between the notches 150. The elements (100) described herein include undulations (165,185) that differ in height and/or width.

主权项

1. A heat transfer element for a rotary regenerative heat exchanger comprising:
notches extending parallel to each other and configured to form passageways between adjacent heat transfer elements upon stacking thereof, each of the notches including lobes projecting outwardly from opposite sides of the heat transfer element; first undulations disposed between the notches, the first undulations extending parallel to each other, each first undulation having a width Wu1; and, second undulations disposed between the notches, and adjacent to and alternating with the first undulations, the second undulations extending parallel to each other, each second undulation having a width Wu2, wherein the width Wu1 is not equal to the width Wu2.