Convective heat transfer by cascading jet impingement in a batch coil annealling furnace
US5295822A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 19, 1993 |
| Grant date | Mar 22, 1994 |
| Priority date | — |
| Expiry date | Apr 19, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S165/908
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved convective heat transfer arrangement is disclosed achieving overall heat transfer efficiencies in the neighborhood of 30 Btu/(hr. ft.sup.2 .degree.F.). A heat transfer conduit including a heat transfer wall is axially divided into a plurality of axially extending heat transfer chambers by a plurality of transversely extending baffles. Each baffle is especially configured to have an axially extending recess formed therein through which extends an orifice opening. Heat transfer gas pumped through the conduit cascades through the heat transfer chambers forming and reforming nascent free standing jet streams through each baffle orifice which impinge the heat transfer wall to achieve very high heat transfer coefficients while efficiently utilizing the available heat in the heat transfer gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.