Improved combustion of wood waste in industrial boilers. Technology applications manual; technology transfer

Technical Report · Fri Jan 01 00:00:00 EST 1982

OSTI ID:6754164

To provide information on optimum design and operation of existing wood residue fired spreader-stoker boilers, research was conducted on a pilot-scale spreader-stoker boiler. Wood waste combustion was investigated as a function of fuel size, moisture content, species, air:fuel ratios, and type of equipment used. Data collected from the test facility show that distribution of combustion air to the combustion chamber is critical to efficient operation of boilers. The results indicate that more complete combustion of wood residue is possible when excess air is reduced significantly below commonly used levels, the underfire air supply is reduced, and overfire air is distributed uniformly over the grate surface. Proper air distribution can increase the combustion by 3 to 8 percent and reduce particulate emissions by 20 to 30% below levels that occur at typical boiler operating conditions. Improved equipment and procedures for burning wood waste in industrial boilers were developed as a result of the tests. These improvements can be used in both existing and new boilers. An economic analysis showed that the improvements can be economically desirable both for retrofit of existing wood fired boilers and for incorporation in new boilers. (LEW)

• Research Organization: CH2M Hill, Bellevue, WA (USA)
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6754164
• Report Number(s): DOE/TIC-11431; ON: DE81027633
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
42 ENGINEERING
09 BIOMASS FUELS
REFUSE-FUELED BOILERS
ECONOMIC ANALYSIS
PERFORMANCE TESTING
WOOD WASTES
COMBUSTION
AIR
AIR POLLUTION CONTROL
BENCH-SCALE EXPERIMENTS
INDUSTRY
MOISTURE
PARTICULATES
PAYBACK PERIOD
RETROFITTING
SIZE
TEST FACILITIES
WOOD BURNING FURNACES
APPLIANCES
BOILERS
CHEMICAL REACTIONS
CONTROL
ECONOMICS
FLUIDS
FURNACES
GASES
OXIDATION
PARTICLES
POLLUTION CONTROL
SOLID WASTES
TESTING
THERMOCHEMICAL PROCESSES
WASTES
WOOD BURNING APPLIANCES
320303* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes
421000 - Engineering- Combustion Systems
090400 - Solid Waste & Wood Fuels- (-1989)