Characterization and Air Drying of Chunkwood and Chips

Joseph B. Sturos

doi:10.2737/NC-RN-308

Treesearch

Characterization and Air Drying of Chunkwood and Chips

Informally Refereed

Authors:

Joseph B. Sturos

Year:

1984

Type:

Research Note

Station:

Northern Research Station

DOI:

https://doi.org/10.2737/NC-RN-308

Source:

Research Note NC-308. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station

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Download (PDF 1.06 MB): https://research.fs.usda.gov/download/treesearch/11213.pdf

Abstract

Chunkwood was found to be composed of a few large particles and many small particles with the large particles constituting almost half the total weight. More than 75 percent of the chunk weight was composed of particles weighing more than 100 grams (ovendry), while 85 percent of the chip weight was composed of particles weighing 3 grams or less. Energy densities ranged from 89,675 Btu/cu. ft for green aspen chips to 162,520 Btu/cu. ft for dried sugar maple chunks. Chunks and chips were air-dried from July through October in eight covered cribs. For both species tested, the chunks dried faster than the chips to about 20 percent maoisture content

Keywords

Energy, wood, fuel characteristics, moisture content, biomass, fuel preparation

Citation

Sturos, Joseph B. 1984. Characterization and Air Drying of Chunkwood and Chips. Research Note NC-308. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station