Vertical feed stick wood fuel burning furnace system

Patent · Fri Jan 01 04:00:00 EST 1982

OSTI ID:864100

Hill, Richard C ^[1]

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1. Orono, ME

A stove or furnace for efficient combustion of wood fuel includes a vertical feed combustion chamber (15) for receiving and supporting wood fuel in a vertical attitude or stack. A major upper portion of the combustion chamber column comprises a water jacket (14) for coupling to a source of water or heat transfer fluid for convection circulation of the fluid. The locus (31) of wood fuel combustion is thereby confined to the refractory base of the combustion chamber. A flue gas propagation delay channel (34) extending laterally from the base of the chamber affords delayed travel time in a high temperature refractory environment sufficient to assure substantially complete combustion of the gaseous products of wood burning with forced air prior to extraction of heat in heat exchanger (16). Induced draft draws the fuel gas and air mixture laterally through the combustion chamber and refractory high temperature zone to the heat exchanger and flue. Also included are active sources of forced air and induced draft, multiple circuit couplings for the recovered heat, and construction features in the refractory material substructure and metal component superstructure.

• Assignee: Board of Trustees of University of Maine (Bangor, ME)
• Patent Number(s): US 4309965
• OSTI ID: 864100
• Country of Publication: United States
• Language: English

Related Subjects

/122/110/126/
14
15
16
31
34
active
affords
air
air mixture
air prior
assure
attitude
base
burning
burning furnace
chamber
channel
circuit
circulation
column
column comprises
combustion
combustion chamber
complete
complete combustion
component
comprises
confined
construction
construction features
convection
convection circulation
coupling
couplings
delay
delayed
draft
draws
efficient
efficient combustion
environment
environment sufficient
exchanger
extending
extending laterally
extraction
features
feed
feed combustion
feed stick
flue
flue gas
fluid
forced
forced air
fuel
fuel burning
fuel combustion
fuel gas
furnace
gas
gaseous
gaseous product
gaseous products
heat
heat exchange
heat exchanger
heat transfer
included
induced
induced draft
jacket
laterally
locus
major
major upper
material
metal
metal component
mixture
multiple
portion
prior
products
propagation
propagation delay
receiving
recovered
refractory
refractory base
refractory material
source
sources
stack
stick
stick wood
stove
substantially
substantially complete
substructure
sufficient
superstructure
supporting
supporting wood
temperature
temperature refractory
temperature zone
time
transfer
transfer fluid
travel
travel time
upper
upper portion
vertical
vertical attitude
vertical feed
water
water jacket
wood
wood fuel
zone