Biomass fueled furnace

Patent · Tue Aug 19 04:00:00 EDT 1980

OSTI ID:6840557

Wieweck, G J

A furnace for burning biomass such as crop residues like cornstalks and other combustibles is disclosed. The furnace includes a combustion chamber and many chimney stacks extending upwardly therefrom. Loading doors are provided into the combustion chamber to permit massive batches of combustibles to be deposited in the chamber. Centrifugal combustion air draft fans are positioned to deliver forced combustion air from the atmosphere into a lower part of the chamber when needed. A heat exchanger jacket encompasses major parts of the chamber and of the stacks and is provided with an upper opening adjacent the top of the stacks and a lower opening adjacent the bottom of the chamber. Drying air to be heated enters one of the openings and heated drying air discharges from the other. Fan means adjacent the lower opening moves the drying air through the heat exchange jacket and into a crop dryer or other location for use. The drying air discharge temperature is monitored by a sensor which controls the combustion air draft fans to maintain the discharging heated drying air within predetermined temperature limits.

• Assignee: IFI; ERA-06-004069; EDB-81-002011
• Patent Number(s): US 4217878
• OSTI ID: 6840557
• Country of Publication: United States
• Language: English

Related Subjects

09 BIOMASS FUELS
090400 -- Solid Waste & Wood Fuels-- (-1989)
42 ENGINEERING
421000* -- Engineering-- Combustion Systems
BIOMASS
BLOWERS
CHEMICAL REACTIONS
CHIMNEYS
COMBUSTION
COMBUSTION CHAMBERS
CONTROL EQUIPMENT
DESIGN
DOORS
DRAFT CONTROL SYSTEMS
DRYING
ENERGY SOURCES
EQUIPMENT
FLOW REGULATORS
FURNACES
HEAT EXCHANGERS
OPENINGS
OXIDATION
RENEWABLE ENERGY SOURCES
THERMOCHEMICAL PROCESSES