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The Development and Field Testing of a High Temperature Ceramic Recuperator
Abstract
Under cost-shared funding with the U.S.
Department of Energy and the Gas Research Institute,
AiResearch Manufacturing Company, Torrance,
California has developed a ceramic/metallic hybrid
recuperator to operate in dirty industrial flue
gases up to 2500°F. The recuperator assembly is
designed to provide up to 2000°F preheated combustion
air from 2500°F flue gas. The 2000°F air preheat
temperature provides over 50 percent savings in
fuel consumption compared to an unrecuperated furnace.
The assembly consists of a ceramic recuperator
in series with a conventional plate-fin metallic
recuperator. The ceramic recuperator consists of
1.5 inch outside diameter silicon carbide tubes with internal cruciform baffles to enhance heat transfer.
A recuperator system for a 20 MM Btu/hr
furnace was designed, fabricated, and installed in
the flue gas of a rotary forging furnace at Cameron
Iron Works, Inc., Houston, Texas. The system has
operated successfully for about 2500 hours in the
six months starting in November 1985. A maximum air
preheat temperature of about 1900°F was achieved
with a flue gas temperature of about 2100°F.
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Citation
Childs, F. W.; Sohal, M. S. (1986). The Development and Field Testing of a High Temperature Ceramic Recuperator. Energy Systems Laboratory (http://esl.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /92962.