Silicon carbide foam electric heater for heating gas directed th

Details Silicon carbide foam electric heater for heating gas directed th Silicon carbide foam electric heater for heating gas directed th

1996-04-04

1998-06-09

Jeffery, John A.

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

219544, 219552, 29611, H05B 100, F24H 304

Patent

active

057648506

ABSTRACT:
An electrical foam heating element made by the process of forming a volume of reticulated silicon carbide foam material into a preferred shape, heating the material to a temperature of about 1000.degree. C. for a period of 24-30 hours, forming conductive edges over two respectively facing edge surfaces, applying an electrically-conductive felt material against the respective conductive faces, and clamping foam volume and foam between two electrically-conductive electrodes. In another embodiment, a region of nickel foam material is provided between the respective electrodes and the silicon carbide interior, and intermediate felt layers are provided between the nickel foam and the silicon carbide foam, and between the nickel foam and the electrodes. The layered felt material is of three-layer construction: inner and outer layers of electrically-conductive felt separated by an interior metal foil layer.

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Brochure entitled "Heaters"; Phoenix Solutions Co.
Brochure entitled "Duocel Ceramic Foam"; Energy Research & Generation Inc.

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