Heat exchanger having heat exchange tubes with angled heat-exchange performance-improving indentations
US5979548A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1996 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Dec 23, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7935
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Disclosed is a heat exchange tube having angled heat-exchange performance-improving indentations on the tube. These angled performance-improving indentations increase the amount of heat transferred to a heat exchange liquid flowing through the tubes without substantially increasing the pressure drop or reducing the flow rate of the heat exchange liquid through the tube. An array of tubes can be made using heat exchange tubes of this invention, and a heat exchanger can be formed from an array or from tubes of this invention. In certain preferred embodiments, heat exchangers of this invention are particularly well-suited for use in solar-heating swimming-pool water or for use in thermal energy storage units.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.