Air preheater heat transfer elements and method of manufacture
US5983985A · kind A · utility
16Cited by
6References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1999 |
| Grant date | Nov 16, 1999 |
| Priority date | — |
| Expiry date | May 5, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49366
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Heat transfer elements for rotary regenerative heat exchangers are formed with spacing ridges or notches having flow-disrupting indentations in the peaks of the notches formed at selected intervals to project into the flow channels. These projections interrupt the boundary layer and cause turbulence and mixing to enhance the heat transfer. Various methods of forming the indentations are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.