Conversion of heating system for integral quench carburizing furnace saves energy

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · Industrial Heating (Pittsburgh); (USA)

OSTI ID:6467076

Swintek, A

An integral quench carburizing furnace converted to a natural-gas-fired, single-ended radiant-tube recuperative-type burner is economical to operate and maintain. Use of single-ended radiant tube (SER) burner technology is one of the keys to the energy savings; conversion to natural gas operation is the other. A small, inside tube housing a nozzle-mix burner provides the heat transfer surface area for preheating the combustion air. A larger, outer tube - housing the entire inner-tube assembly - allows a sufficient radiant surface area to heat the furnace and the load. A counterflow combustion air/exhaust effect is created that maximizes the heat transfer from the waste exhaust to the combustion air, making the preheat system extremely efficient. The preheated combustion air supplied to an SER tube burner assembly ranges from 850{degree} to 1,100{degree}F, generating fuel savings of 35-55%.

• OSTI ID: 6467076
• Journal Information: Industrial Heating (Pittsburgh); (USA), Journal Name: Industrial Heating (Pittsburgh); (USA) Vol. 56; ISSN INHTA; ISSN 0019-8374
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
034000* -- Natural Gas-- Combustion
AIR
BURNERS
CARBURIZATION
CHEMICAL REACTIONS
COMBUSTION
COUNTERFLOW SYSTEMS
DESIGN
EFFICIENCY
ENERGY CONSERVATION
ENERGY RECOVERY
ENERGY SOURCES
ENERGY TRANSFER
FLUE GAS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
FURNACES
GAS FUELS
GAS FURNACES
GASEOUS WASTES
GASES
HARDENING
HEAT RECOVERY
HEAT TRANSFER
HEATING
NATURAL GAS
NOZZLES
OXIDATION
QUENCHING
RECOVERY
RETROFITTING
SURFACE HARDENING
SURFACE TREATMENTS
THERMAL EFFICIENCY
THERMOCHEMICAL PROCESSES
TUBES
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION
WASTES