Fancom 750 User Manual page 11

Lumina 750
Compost temperature control value: 45.0°C (113°F)
Levelling: minimum phase time: 6 hours
Levelling: maximum phase time: 12 hours
Temperature margin compost: 1.0°C (33.8°F)
Difference compost: 2.0°C (35.6°F)
Temperature °C (°F)
50 (122)
48 (118)
46 (114)
44 (111)
42 (107)
40 (104)
Figure 3: Switch over to next phase when levelling
● Use a large air inlet temperature control range
● Use an increased fan speed
2.5.2 PHASE 2 & 3: Warm up pasteurization
The warming up can be realised in two phases with different parameters.
Aim To gradually increase the compost temperature to the pasteurization temperature.
Uses ●
●
.
●
Method Increases the tunnel temperature to pasteurization temperature according to a preset speed
using steam. Usually the compost temperature is 1.0°C (1.8°F) or 2.0°C (3.6°F) higher than the
air inlet temperature.
2.5.3 PHASE 4: Pasteurization
Aim
To maintain the compost and air inlet temperature at a high value during a certain period of
time in order to kill unwanted organisms. This phase is ended as soon as the entered time
has elapsed or when the average compost temperature rises above the maximum compost
temperature, after the minimum phase time has been elapsed.
Uses ●
.
●
Method -
Average compost
temperature
2 4 6 8
Min. phase time
Max. phase time
steam and heating as a heat source to warm up the air
the fan to minimize temperature differences
fresh air to cool if the temperatures rises too fast and to maintain a minimum O
concentration.
the fan to minimize temperature differences
fresh air to cool or to maintain a minimum O
Max. measured compost temp.
2°C (35.6°F)
Min. measured compost temp.
10 12 14
concentration
2
Basic working principles
Compost temperature
control value
Time (hours)
-
2
8