Official Journal of the Japan Wood Research Society
Table 4 Mean loss of moisture (as % of wood chip weight) in fractionated willow and fir chips after various microwave irradiation times (figures in brackets show those changes as % of initial moisture content)
Species | Sieve size, mm | Time, s | |||
|---|---|---|---|---|---|
30 | 60 | 120 | 180 | ||
Willow | 0 | – | 3.21 (4.64) | 8.57 (12.53) | – |
3.15 | 1.18 (1.77) | 4.30 (6.04) | 8.73 (12.36) | 14.95 (21.12) | |
8.0 | 1.24 (1.93) | 4.42 (6.90) | 9.29 (14.55) | 15.84 (25.40) | |
16.0 | 2.43 (4.40) | 4.67 (8.93) | 10.78 (19.33) | 17.11 (30.08) | |
31.5 | – | – | 11.26 (21.00) | – | |
Fir | 0 | – | 3.77 (3.84) | 9.16 (9.46) | – |
3.15 | 1.65 (1.46) | 4.39 (3.91) | 10.81 (9.77) | 18.23 (16.41) | |
8.0 | 1.51 (1.56) | 5.47 (5.47) | 11.95 (12.10) | 19.17 (19.75) | |
16.0 | 2.80 (3.46) | 5.89 (7.38) | 11.62 (15.23) | 19.57 (26.94) | |
31.5 | – | – | 11.04 (17.86) | – | |