Reduce energy use by up to 40%
- Simple, uncomplicated system requiring minimal input from an electrical contractor
- Wireless control - only needs a power cable to each fan
- Each fan reacts to the condition of the crop around it, without any additional costs for store zoning
- Fan display gives real-time grain temperature reading - no need for additional sampling
- Can be retro-fitted to existing fans or specified on new units
- Automated control means fans only run as required, speeding up cooling times and cutting energy usage
Grain Fan Assist Wireless explained
Cooling Using Low Volume Ventilation
Temperatures above 15°C increase the risk of insect and mite populations developing. Relatively warm grain post-harvest is a good insulator, so heat is lost very slowly. Cooling permits grain to be stored at slightly higher moisture content and effectively increases the safe storage time.
Differential Controls
Differential controls have been shown to result in more efficient grain cooling, by switching the cooling fan on when the air temperature is lower than the grain temperature. Cooling systems have the potential to run whenever ‘air of a temperature to permit cooling’ is available and are automatically switched off once the grain reaches the ambient temperature. Reducing fan hours to reach the target temperature (in comparison with manual fan control) reduces energy costs.
“Temperatures fall more rapidly and to lower levels when using automatic compared to manual fan control”
If blowing with cooler air using a differential thermostat (4-6 ̊C difference), it is not possible to dampen grain. For grain to become damp from blowing, you need a combination of:
- Excessive aeration rates
- Condensation around ducts
- Rain driven into uncovered external fans
- Successive days of condensing fog