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US 4,083,400 AGranted
Heat recuperative apparatus incorporating a cellular ceramic core
AssigneeGTE Sylvania Incorporated
InventorsChester John Dziedzic, Joseph Jerome Cleveland, Ray Lewis Newman
Life of this patent
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Abstract
High cell density (125 Cells/inch) cross-flow ceramic recuperators having high efficiencies are utilized for industrial waste heat recovery in an apparatus in which a ceramic recuperator core is surrounded by a metallic housing adapted for coupling to the metallic fittings of existing furnaces, ovens and preheaters. Insulating and sealing layers between the core and housing minimize heat loss through the housing and prevent leakage of the heat transfer fluids past the core.
Claims11
A heat recuperative apparatus comprising:
- (a) a core of a cross-flow ceramic recuperator, having first and second pairs of opposing faces defining cell openings for the passage of first and second heat transfer fluids, respectively, in directions transverse to one another, the first fluid transferring heat to the second fluid during passage through the cells, whereby each pair of faces has in operation a hot face and a cold face, the hot face of the first pair being the inlet face for the first fluid, and the hot face of the second pair being the outlet face for the second fluid,
- (b) a metallic housing surrounding the core, the housing defining openings communicating with the core cell openings, the housing openings adapted for coupling to external fluid conduits,
- (c) means for thermally insulating the core from the housing to promote transfer within the core between the fluids, and
- (d) means for maintaining a resilient seal between the insulating means and the housing to promote passage of the heat transfer fluids through the core cells.
1 more element
Dependencies are inferred from the claim text.