bark, oak (#952)

ID-number#952
Materialbark, oak
Classification ECN Phyllis classification ▸ untreated wood ▸ bark ▸ bark, oak
NTA 8003 classification ▸ [100] hout ▸ [110] vers hout ▸ [112] schors
Ash type600 degC
Submitter organisationECN (Netherlands)
LiteratureK. W. Ragland, D. J. Aerts and A. J. Baker: Properties of wood for combustion analysis. Bioresource Technology 37 pp. 161-168 (1991).

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% 5.30

Ultimate Analysis

Carbon wt% 49.81 52.60 Measured
Hydrogen wt% 5.40 5.70 Measured
Nitrogen wt% 0.09 0.10 Measured
Sulphur wt% 0.09 0.10 Measured
Oxygen wt% 39.30 41.50 Calculated
Total (with halides) wt% 100.00 100.00 Calculated

Calorific Values

HHVMilne MJ/kg 19.32 20.41 Calculated

Chemical Analyses

Major elements

Aluminium (Al) mg/kg (dry) 29.0 Measured
Potassium (K) mg/kg (dry) 88.0 Measured
Sodium (Na) mg/kg (dry) 3 500.0 Measured
Calcium (Ca) mg/kg (dry) 24 400.0 Measured
Silicon (Si) mg/kg (dry) 2 700.0 Measured
Magnesium (Mg) mg/kg (dry) 3 800.0 Measured
Iron (Fe) mg/kg (dry) 1 200.0 Measured

Physical Properties

Ash melting behaviour

American standard method, measured in oxidizing conditions

IDT (initial deformation temperature) °C 1 471
SOT (softening or spherical temperature) °C 1 499
FT (fluid temperature) °C 1 510

American standard method, measured in reducing conditions

IDT (initial deformation temperature) °C 1 477
SOT (softening or spherical temperature) °C 1 493
FT (fluid temperature) °C 1 504