Wood burning furnace

Patent · Tue May 20 04:00:00 EDT 1986

OSTI ID:5597111

Bauver, II, W P

This patent describes a furnace having four walls for burning cellulosic fuel therein, a grate in the furnace bottom on which the fuel is burned, means for introducing cellulosic fuel onto the grate, means for introducing air into the furnace for supporting combustion of the fuel, a rear gas pass connected to the upper end of the furnace, the walls of the furnace being inclined upwardly and outwardly from the grate in such a manner that at a given height above the grate, the cross-sectional flow area is 1 1/2 to 2 times the flow area closely adjacent to the grate, such that most of the partially burned char particles entrained in the gases near the grate reach a height in the furnace where the gas velocity equals the particle terminal velocity, so that most of the particles remain suspended at this height until combustion has reduced their size enough so that they can be carried into the rear pass by the reduced gas velocity.

• Assignee: Combustion Engineering, Inc., Windsor, CT
• Patent Number(s): US 4589353
• OSTI ID: 5597111
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090400* -- Solid Waste & Wood Fuels-- (-1989)
140504 -- Solar Energy Conversion-- Biomass Production & Conversion-- (-1989)
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
AIR FLOW
APPLIANCES
CARBOHYDRATES
CELLULOSE
CHARS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CONTROL
CONTROL
DESIGN
FLOW RATE
FLUE GAS
FLUID FLOW
FURNACES
GAS FLOW
GASEOUS WASTES
ORGANIC COMPOUNDS
OXIDATION
PARTICLE SIZE
PARTICLES
POLYSACCHARIDES
PYROLYSIS PRODUCTS
SACCHARIDES
SIZE
THERMOCHEMICAL PROCESSES
WALLS
WASTES
WOOD
WOOD BURNING APPLIANCES
WOOD BURNING FURNACES