Energy from wood

Pellets

What is the calorific value of wood-based material?  Foto: Eirik Nordhagen, NIBIO

The calorific value of wood-based material can be determined by a bomb calorimeter (1 MJ / kg is 0.2778 kWh / kg). We distinguish between higher, lower and gross heating value. Lower calorific value is indicated on dry and ash free material. Typical Lower heating value for wood without bark, leaves or needles: Softwoods: 19.1 MJ / kg, (5.3 kWh / kg) Hardwoods: 18.9 MJ / kg, (5.25 kWh / kg)

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