Table 7-1
Residue Expansion Factors and Related Conversions
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1 Expansion Factor |
2 Relative Solid Volume |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
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Residue |
ft3 residue / ft3 solid wood m3 residue / m3 solid wood |
ft3 solid wood / ft3 residue m3 solid wood / ft3 residue |
ft3 solid wood per m3 residue |
m3 residue per ft3solid wood |
m3 solid wood per ft3 residue |
ft3 residue per m3 solid wood |
ft3 solid wood per unit residue |
m3 solid wood per unit residue |
units residue per ft3 solid wood |
units residue per m3 solid wood |
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pulp hip (loose) |
2.86 |
.350 |
12.36 |
0.081 |
.00991 |
100.91 |
70 |
1.98 |
.0143 |
0.505 |
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pulp chip (compacted) |
2.50 |
.400 |
14.13 |
0.071 |
.01132 |
88.34 |
80 |
2.27 |
.0125 |
0.441 |
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sawdust |
2.50 |
.400 |
14.13 |
0.071 |
.01132 |
88.34 |
80 |
2.27 |
.0125 |
0.441 |
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planer shavings |
4.00 |
.250 |
8.83 |
0.113 |
.00708 |
141.24 |
50 |
1.42 |
.0200 |
0.706 |
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bark1 |
2.35 |
.425 |
15.011 |
0.0671 |
.012041 |
83.061 |
85 |
2.41 |
. 01181 |
0.4151 |
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hog fuel |
2.74 |
.365 |
12.89 |
0.078 |
.01033 |
96.80 |
73 |
2.07 |
.0137 |
0.484 |
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1In the case of bark, column headings should be interpreted as relating quantity of brk residue to quantity of solid bark.
Column 2 = reciprocal of the expansion factor
Column 3 = column 1 multiplied by 35.313 ft3/m3
Column 4 = reciprocal of column 6
Column 5 = column 2 divided by 35.313 ft3/m3
Column 6 = reciprocal of column 10
Column 7 = 200 divided by the expansion factor
Column 8 = column 2 divided by 35.313 ft3/m3
Column 9 = reciprocal of column 7
Column 10 = reciprocal of column 8
Source: Column 1 from Dobie and Wright (1972); Columns 2-8 calculated by the author.