Heat transfer element assembly
US6019160A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 16, 1998 |
| Grant date | Feb 1, 2000 |
| Priority date | — |
| Expiry date | Dec 16, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF28F2240/00
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The thermal performance of the heat transfer element assemblies for rotary regenerative air preheaters is optimized to provide a desired level of heat transfer and pressure drop with a reduced volume and weight. The heat transfer plates in the assemblies have notches for maintaining plate spacing and oblique undulations between the notches. The undulations on adjacent plates extend at opposite oblique angles. The ratio of the openings of the undulations to the openings of the notches is greater than 0.3 and less than 0.5. The pitch (spacing) of the notches is greater than two inches and the angle of the undulations with respect to the notches is greater than 20.degree. and less than 40.degree..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.