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Title: Vertical feed stick wood fuel burning furnace system

Abstract

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.

Inventors:
 [1]
  1. (Orono, ME)
Issue Date:
OSTI Identifier:
864100
Patent Number(s):
4309965
Assignee:
Board of Trustees of University of Maine (Bangor, ME) OSTI
DOE Contract Number:  
EC-77-S-02-4559
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
vertical; feed; stick; wood; fuel; burning; furnace; stove; efficient; combustion; chamber; 15; receiving; supporting; attitude; stack; major; upper; portion; column; comprises; water; jacket; 14; coupling; source; heat; transfer; fluid; convection; circulation; locus; 31; confined; refractory; base; flue; gas; propagation; delay; channel; 34; extending; laterally; affords; delayed; travel; time; temperature; environment; sufficient; assure; substantially; complete; gaseous; products; forced; air; prior; extraction; exchanger; 16; induced; draft; draws; mixture; zone; included; active; sources; multiple; circuit; couplings; recovered; construction; features; material; substructure; metal; component; superstructure; air prior; forced air; construction features; propagation delay; transfer fluid; metal component; water jacket; refractory material; fuel gas; combustion chamber; heat exchange; heat exchanger; heat transfer; upper portion; flue gas; gaseous product; air mixture; gaseous products; wood fuel; fuel combustion; temperature zone; substantially complete; complete combustion; vertical attitude; burning furnace; induced draft; vertical feed; travel time; feed combustion; efficient combustion; column comprises; fuel burning; convection circulation; temperature refractory; stick wood; supporting wood; environment sufficient; extending laterally; feed stick; refractory base; major upper; /122/110/126/

Citation Formats

Hill, Richard C. Vertical feed stick wood fuel burning furnace system. United States: N. p., 1982. Web.
Hill, Richard C. Vertical feed stick wood fuel burning furnace system. United States.
Hill, Richard C. Fri . "Vertical feed stick wood fuel burning furnace system". United States. https://www.osti.gov/servlets/purl/864100.
@article{osti_864100,
title = {Vertical feed stick wood fuel burning furnace system},
author = {Hill, Richard C.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

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