wood, Pyrenean oak, branches 20 - 70 mm diameter (#2853)

ID-number#2853
Materialwood, Pyrenean oak, branches 20 - 70 mm diameter
Descriptionchips
Classification ECN Phyllis classification ▸ untreated wood ▸ oak
NTA 8003 classification ▸ [100] hout ▸ [110] vers hout ▸ [120] loofhout ▸ [126] hard loofhout met schors
Sample lot size<63 mm
Ash typeCEN/TS 14775 (550°C)
Submitter organisationECN (Netherlands)
Submission date2009-07-20
RemarksC,H,N according to CEN/TS 15104; S acc CEN/TS 15289, O by diff.; moisture by CEN/TS 14774-2; heating value acc UNE 164001 EX; collection, sampling and preparation acc to CEN standards; for small and larger branches see previous and next records
LiteratureM.T. Miranda, J.I. Arranz, S. Rojas, I. Montero: Energetic characterization of densified residues from Pyrenean oak forest. Fuel 88 (2009) 2106-2112.

Values

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

Fuel Properties

Proximate Analysis

Moisture content wt% 40.62
Ash content wt% 1.78 3.00
Volatile matter wt% 47.99 80.82 83.32
Fixed carbon wt% 9.61 16.18 16.68 Calculated

Ultimate Analysis

Carbon wt% 28.87 48.62 50.12 Measured
Hydrogen wt% 3.87 6.52 6.72 Measured
Nitrogen wt% 1.53 2.58 2.66 Measured
Sulphur wt% (dry) 0.10
Oxygen wt% 23.27 39.18 40.39 Calculated
Total (with halides) wt% 99.94 99.90 99.90 Calculated

Calorific Values

Net calorific value (LHV) MJ/kg 9.59 17.82 18.37
Gross calorific value (HHV) MJ/kg 11.42 19.24 19.84
HHVMilne MJ/kg 11.96 20.14 20.77 Calculated

Chemical Analyses

Biochemical composition

Cellulose wt% (dry) 39.69 van Soest
Hemicellulose wt% (dry) 13.28 van Soest
Lignin wt% (dry) 21.87 Measured
Total ash + biochemical wt% (dry) 77.84 Calculated

Physical Properties

Commonly used properties

Bulk density (daf) kg/m³ (daf) 204