New directions in ceramic radiant tubes

Journal Article · Thu May 20 04:00:00 EDT 1993 · Plant Engineering; (United States)

OSTI ID:6164582

Natural gas-fired ceramic radiant tubes (CRTs) made some giant steps forward during the past five years. New heat-resistant ceramic materials developed under GRI contract by companies such as Coors Ceramics and INEX led the way. Then, under GRI sponsorship, Eclipse Combustion and Pyronics both developed ceramic single-ended recuperative radiant (SER) tube assemblies suitable for high temperature applications. These ceramic tubes were a step up from metallic radiant tubes and could tolerate high temperatures and high heat fluxes. Further, they offered substantial lifecycle cost and maintenance savings over conventional metal radiant tubes. The next generation of CRT developments follows closely on the heels of the first. Responding to today's environmental concerns and tightening emissions restrictions, Eclipse Combustion and Pyronics, under GRI sponsorship, are developing low NO[sub x] SERs that offer all the advantages of their earlier tubes plus reduced emissions. INEX and Coors Ceramics, again under GRI sponsorship, are working on ceramic radiant U-tubes which, when perfected, can be used in larger furnaces than the SERs. This paper describes these newest developments.

• OSTI ID: 6164582
• Journal Information: Plant Engineering; (United States), Journal Name: Plant Engineering; (United States) Vol. 47:9; ISSN PLENAV; ISSN 0032-082X
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
034000* -- Natural Gas-- Combustion
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
AIR POLLUTION ABATEMENT
CERAMICS
CHALCOGENIDES
CHEMICAL REACTIONS
CIRCULATING SYSTEMS
COMBUSTION
DESIGN
ENERGY SOURCES
EXHAUST GASES
FABRICATION
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASEOUS WASTES
GASES
HEATERS
NATURAL GAS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
RADIANT HEATERS
THERMOCHEMICAL PROCESSES
WASTES