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Performance Rates of Woodchip XIV at Different Starting Moisture Content Levels
Reasons 1
The usable calorific value of woodchips depends much more on the woodchip’s moisture content than on the species of wood. Fresh wood chips with a water content of 55% provide roughly 2000 kWh in energy per ton.
Reasons 2
By drying woodchips to 20% moisture content, the calorific value is doubled to around 4000 kWh per ton. In a burning process of 1 ton of dried woodchips, approximately 400 L of heating oil can be substituted.
Reasons 3
For woodchip boilers, dry woodchips equate to higher efficiency, clean and more consistent combustion that in turn ensures simple operation and an extended lifetime of the heating system.
Reasons 4
In addition, only woodchips below 30% moisture content are suitable for storage. Woodchips above the 30% threshold are liable to microbial decomposition.
