High temperature burner-duct-recuperator system evaluation: Third annual report, October 1983-September 1984

Technical Report · Sun Jan 01 00:00:00 EST 1984

OSTI ID:6847116

The design concept developed to recover the heat in the waste gas stream consists of two ceramic tubes; one tube open on both ends inserted into another tube which is closed on one end, bayonet style. The tubes are suspended vertically from the plenums into the flue of the soaking pit using air-cooled, metallic tube sheets. Combustion air is blown into the upper plenum where it begins the heat exchange process with the hot gases by flowing down the inner tube, turning around at the bottom of the outer tube, and flowing up the outer tube to the lower plenum and out of the recuperator. Combustion air flow direction through the recuperator could also be reversed. The system is called a cross-counter flow heat exchanger. Ceramic fiber insulation is used to line the walls of the plenums and the surfaces of the tube sheets as well as the ducts and burner. Ceramic fiber products are also used to provide individual support sleeves and seals for the tubes. The tubes in this concept rest on the sleeves and seals, and are not constrained from moving due to thermal expansion. This design reduces mechanical stresses on the ceramic tubes. The benefits of the B and W design concept include: no dilution air needed for the flue gas; high operating temperature (2250/degree/F); low flue-side pressure drop (Lo. 1 in. H/sub 2/O); unconstrained structural ceramics; and ease of maintenance. 4 refs., 37 figs.

• Research Organization: Babcock and Wilcox Co., Lynchburg, VA (USA). Research and Development Div.
• DOE Contract Number: FC07-81ID12296
• OSTI ID: 6847116
• Report Number(s): DOE/ID/12296-3; ON: DE88013690
• Resource Relation: Other Information: Paper copy only, copy does not permit microfiche production
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AIR HEATERS
DESIGN
BURNERS
COMPUTERIZED SIMULATION
CONTROL SYSTEMS
DUCTS
THERMAL INSULATION
FLUE GAS
WASTE HEAT UTILIZATION
HEAT EXCHANGERS
MATERIALS
MEASURING INSTRUMENTS
METAL INDUSTRY
PROGRESS REPORT
DOCUMENT TYPES
GASEOUS WASTES
HEATERS
INDUSTRY
SIMULATION
WASTE PRODUCT UTILIZATION
WASTES
320304* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization