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Title: Method of regulating the amount of underfire air for combustion of wood fuels in spreader-stroke boilers

Abstract

A method of metering underfire air for increasing efficiency and reducing particulate emissions from wood-fire, spreader-stoker boilers is disclosed. A portion of the combustion air, approximately one pound of air per pound of wood, is fed through the grate into the fuel bed, while the remainder of the combustion air is distributed above the fuel in the furnace, and the fuel bed is maintained at a depth sufficient to consume all oxygen admitted under fire and to insure a continuous layer of fresh fuel thereover to entrap charred particles inside the fuel bed.

Inventors:
 [1]
  1. (Federal Way, WA)
Issue Date:
Research Org.:
Oregon State Univ., Corvallis (USA)
OSTI Identifier:
863752
Patent Number(s):
4241672
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
EY-76-C-06-2227
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; regulating; amount; underfire; air; combustion; wood; fuels; spreader-stroke; boilers; metering; increasing; efficiency; reducing; particulate; emissions; wood-fire; spreader-stoker; disclosed; portion; approximately; pound; fed; grate; fuel; bed; remainder; distributed; furnace; maintained; depth; sufficient; consume; oxygen; admitted; fire; insure; continuous; layer; fresh; thereover; entrap; charred; particles; inside; particulate emissions; combustion air; wood fuel; continuous layer; increasing efficiency; reducing particulate; underfire air; particulate emission; /110/

Citation Formats

Tuttle, Kenneth L. Method of regulating the amount of underfire air for combustion of wood fuels in spreader-stroke boilers. United States: N. p., 1980. Web.
Tuttle, Kenneth L. Method of regulating the amount of underfire air for combustion of wood fuels in spreader-stroke boilers. United States.
Tuttle, Kenneth L. Tue . "Method of regulating the amount of underfire air for combustion of wood fuels in spreader-stroke boilers". United States. https://www.osti.gov/servlets/purl/863752.
@article{osti_863752,
title = {Method of regulating the amount of underfire air for combustion of wood fuels in spreader-stroke boilers},
author = {Tuttle, Kenneth L.},
abstractNote = {A method of metering underfire air for increasing efficiency and reducing particulate emissions from wood-fire, spreader-stoker boilers is disclosed. A portion of the combustion air, approximately one pound of air per pound of wood, is fed through the grate into the fuel bed, while the remainder of the combustion air is distributed above the fuel in the furnace, and the fuel bed is maintained at a depth sufficient to consume all oxygen admitted under fire and to insure a continuous layer of fresh fuel thereover to entrap charred particles inside the fuel bed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

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