Calorific value of wood energy
Wood moisture and energy efficiencyThe calorific value of wood depends on its quality and, most importantly, on its moisture content. Energy efficiency is inversely proportional to the water content (%) in wood.
Freshly cut wood contains about 50% of moisture in relation to its gross mass. The water content should drop to around 25% if it is to be efficient for heating as the combustion of damp wood produces more smoke than heat and causes emission of air pollutants.
Waste wood, energy valorisationClean waste wood can be valorised as fuel for wood heater. Producing fuel from wood waste requires a packaging platform: preliminary coarse grinding, fine grinding (knife mills or hammer mills), iron removal, even metal removal, screening.
Wood waste, whose provenance is unknown, can have been treated or dirtied by hazardous materials. This dirty or treated wood waste should be processed and eliminated as hazardous materials
Renewable energyWood fuel is renewable subject to sustainable silviculture (soil fertility preservation, biodiversity conservation…). Heating networks or domestic boilers, collective and industrial boilers, wood energy is for all type of fuel installation.
Logs, often used by private people, are being replaced by wood chips, wood shavings, dry sawdust or wood pellets from wood industry, in the collective and industrial boilers.
This biomass moisture meter allows to measure water content of solid biomasses: wood chips, barks, plant pellets, wood shavings, sawdust, miscanthus, corn cob...
With its hammer probe, this moisture meter allows to measure round wood water content, even in freshly cut logs.
"The Humitest contributes to improve the biofuel."
"pricing depends on the measured moisture content"
Air quality? Energy efficiency?
Reconciling the two upstream avoids the costs related to amendment works after building or refurbishment: work costs, social costs –health, absenteeism- and environmental impacts.
Exploitation mode and ways of life have a notable share in “global cost”.