| 摘要 |
A heat transfer sheet (360) for a rotary regenerative heat exchanger is shaped to include sheet spacing features (59), which provide spacing between adjacent heat transfer sheets (360), and undulation surfaces (368) in the sections between the sheet spacing features (59). The undulation sections (68,70) are constructed of regularly spaced lobes (376) that become increasingly angled with respect to the sheet spacing features (59) over the length (L) of the heat transfer sheet (360). The undulating section impart turbulence in the air or flue gas flowing between the heat transfer sheets (360) to improve heat transfer. |
