Tube bank wastage in the Grimethorpe pressurized fluidized-bed combustor

Journal Article · Wed Apr 01 04:00:00 EST 1987 · Mater. Compon. Fossil Energy Appl.; (United States)

OSTI ID:5542925

The coal-fired pressurized fluidized bed combustion (PFBC) at Grimethorpe, England, was run for over 3600 hours of combustion testing under the joint sponsorship of the governments of the Federal Republic of Germany, the United Kingdom, and the US. Early in the course of these tests, significant metal wastage was experienced, especially on the inbed heat transfer tubes. This paper describes the modifications to design and new alloys which were tested in the PFBC. Operating conditions for three tube banks are given. A new tube bank, D, has been designed which incorporates a variety of alloy types, a number of tubes designed to operate at higher temperatures than those typical of the rest of the tube bank, and some tubes fitted with fins. The datum fluidizing velocity has been reduced to 0.8 m/sec. The effects of these variables: metal surface temperature, alloy chromium content, fin or stud arrangements, and fluidizing velocity, will be investigated in a continuing program funded by British Coal and the Central Electricity Generating Board of the UK, with some participation from the US Department of Energy and the Electric Power Research Institute. 3 references, 5 figures, 1 table.

• OSTI ID: 5542925
• Journal Information: Mater. Compon. Fossil Energy Appl.; (United States), Journal Name: Mater. Compon. Fossil Energy Appl.; (United States) Vol. 67; ISSN MCFAD
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
ALLOYS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHROMIUM ALLOYS
COAL
COMBUSTION
COMBUSTORS
CORROSION RESISTANT ALLOYS
DESIGN
ENERGY SOURCES
EROSION
EUROPE
FLOW RATE
FLUID FLOW
FLUIDIZED-BED COMBUSTION
FLUIDIZED-BED COMBUSTORS
FOSSIL FUELS
FUELS
GAS FLOW
HEAT EXCHANGERS
MATERIALS
MATERIALS TESTING
MODIFICATIONS
OPERATION
OXIDATION
PERFORMANCE TESTING
PRESSURIZING
TEMPERATURE DEPENDENCE
TESTING
THERMOCHEMICAL PROCESSES
TUBES
UNITED KINGDOM
WESTERN EUROPE