Recuperative heat exchanger having radiation absorbing turbulator
US4559998A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1984 |
| Grant date | Dec 24, 1985 |
| Priority date | — |
| Expiry date | Jun 11, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/904
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A tubular recuperative heat exchanger (10) is adapted for transferring heat from a hot gas stream having a temperature of 1200 F. flowing over the outside surface of the heat exchange tubes (12) to a cold gas stream flowing therethrough. A turbulator (22) is disposed within each heat exchange tube (12) to improve convective heat exchange. The turbulator (22) is coated with a material having a higher absorptivity than that of the underlying surface of the turbulator. Further, the inside surface (24) of the heat exchange tubes (12) may be coated with a material having a higher emissivity than that of the underlying inside surface of the heat exchange tubes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.