bark, average (#978)

ID-number#978
Materialbark, average
Classification ECN Phyllis classification ▸ untreated wood ▸ bark
NTA 8003 classification ▸ [100] hout ▸ [110] vers hout ▸ [112] schors
Submitter organisationECN (Netherlands)
RemarksBiochemical composition on extractive free basis!
LiteratureA. Demirbas: Calculation of higher heating values of biomass fuels. Fuel 76 (5) pp. 431-434 (1997).

Values

Property Unit Value Std dev Det lim Lab Date Method Remarks
ar dry daf

Fuel Properties

Proximate Analysis

Moisture content wt% (ar)
Ash content wt% 1.60

Ultimate Analysis

Carbon wt% 52.25 53.10 Measured
Hydrogen wt% 6.00 6.10 Measured
Nitrogen wt% 0.20 0.20 Measured
Oxygen wt% 39.95 40.60 Calculated
Total (with halides) wt% 100.00 100.00 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 19.19 19.50
Gross calorific value (HHV) MJ/kg 20.50 20.83
HHVMilne MJ/kg 20.91 21.25 Calculated

Chemical Analyses

Biochemical composition

Cellulose wt% (dry) 24.80 Measured
Hemicellulose wt% (dry) 29.80 Measured
Lignin wt% (dry) 43.80 Measured
Total ash + biochemical wt% (dry) 100.00 Calculated