Table 3.
Drying schedule test 2
Sequence | V (%) | Vt 50% R & 50% L | T gradient (°C/h) | t (h) | MC (%) | T (°C) | RH (%) | EMC (%) |
|
S1 | Warming 1 | 49 | 2 | 8 | | | 40 | 88 | 17.8 |
S2 | Warming 2 | 70 | 4 | | 4 | | 44 | 84 | 16.4 |
| | 90 | | | | > 50 | 48 | 82 | 15.2 |
S3 | Drying above FSP | 90 | 9 | | | 50 - 40 | 48 | 79 | 14.1 |
| | 90 | | | | 40 - 35 | 50 | 77 | 13.2 |
| | 85 | | | | 35 - 30 | 50 | 73 | 12.4 |
| | 80 | | | | 30 - 27 | 55 | 70 | 11.0 |
| | 70 | | | | 27 - 24 | 58 | 63 | 9.6 |
| | 60 | | | | 24 - 21 | 60 | 55 | 8.1 |
S4 | Drying below FSP | 55 | 9 | | | 21 - 18 | 62 | 52 | 7.4 |
| | 50 | | | | 18 - 15 | 66 | 46 | 6.4 |
| | 49 | | | | 15 - 12 | 68 | 39 | 5.5 |
| | 49 | | | | 12 - 9 | 70 | 35 | 4.8 |
S5 | Equalizing | 49 | 4 | | 8 | 12 | 55 | 40 | 6.0 |
S6 | Conditioning | 49 | | 5 | | | 40 | | |
where V: ventilation velocity (%) of the maximum value, Vt : ventilation time (hour); 50% right & 50% left, T: temperature (°C), t: time of sequence (hour), RH: relative humidity (%), EMC: equilibrium moisture content (%), FSP: fiber saturation point, MC: wood moisture content (%). T gradient: upwards or downwards slope of the temperature (°C/hour).