Relationship of fuel size and spacing to combustion characteristics of laboratory fuel cribs

Hal E. Anderson

doi:10.2737/INT-RP-424

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Relationship of fuel size and spacing to combustion characteristics of laboratory fuel cribs

Informally Refereed

Authors:

Hal E. Anderson

Year:

1990

Type:

Research Paper

Station:

Rocky Mountain Research Station

DOI:

https://doi.org/10.2737/INT-RP-424

Source:

Res. Pap. INT-RP-424. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 9 p.

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Abstract

Flaming combustion in cribs of large woody fuels, thickness 5 cm or greater, is not sustained when fuel spacing ratio, fuel edge-to-edge separation distance to fuel thickness, is greater than 3:1. The flame length associated with the large-fuel burning rate was found to drop rapidly when the large-fuel spacing ratio increases beyond 2.23:1. This supports the critical spacing assigned in the large-fuel subroutine burnout of Albini's fire modeling program.

Keywords

fuels, fire behavior, spacing, burning rates

Citation

Anderson, Hal E. 1990. Relationship of fuel size and spacing to combustion characteristics of laboratory fuel cribs. Res. Pap. INT-RP-424. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Research Station. 9 p.