Official Journal of the Japan Wood Research Society
Table 4 Average drying rate of Radiata pine during RF/VP drying according to the previous moisture content and stacking position
Radiata pine | Drying rate (%/day) | |||||
|---|---|---|---|---|---|---|
MC > 30% | MC ≤ 30% | MC ≤ 25% | MC ≤ 20% | MC ≤ 15% | MC ≤ 10% | |
Layer-1 | 26.7 | 5.8 | 5.5 | 7.1 | 6.3 | 1.9 |
Layer-2 | 22.6 | 13.4 | 6.2 | 5.7 | 5.7 | 2.4 |
Layer-3 | 27.1 | 8.0 | 4.0 | 5.4 | 6.0 | 2.1 |
Layer-4 | 23.3 | 9.1 | 3.4 | 4.0 | 4.9 | 2.1 |
Layer-5 | 21.0 | 6.9 | 4.4 | 3.9 | 5.2 | 1.3 |
Layer-6 | 24.8 | 11.5 | 8.3 | 8.1 | 5.0 | 0.8 |
Layer-7 | 19.4 | 3.3 | 6.8 | 6.6 | 5.9 | – |
Layer-8 | 22.0 | – | 5.4 | 4.8 | 4.3 | – |
Layer-9 | 22.3 | 10.1 | 2.9 | 4.2 | 2.0 | – |
Layer-10 | 16.1 | 1.9 | 3.7 | 4.5 | – | – |
Average | 22.5 | 7.3 | 4.7 | 5.1 | 4.4 | 1.5 |