Drying of Wood Chippings

The drying of wood chippings became more and more important. Fresh forest chippings has a moisture content of 40 – 60% (large differences in the moisture between core and sapwood). The calorific value of fresh forest chippings stands at around 2 kW/kg. The advantages of dry wood chippings are obvious.

 

→ The calorific value of fresh forest chippings stands at around 4 kW/kg

→ One reduces the amount of fuel by half

→ the combustion is cleaner and less ash is generated

→ The weight during transportation is reduced as well (less transportation cost)