ENERGETIC PROPERT IES OF GREEN WOOD CHIPS FROM SALIX VIMINALIS GROWN ON PLANTATIONS

In the present paper, energetic properties of wood chips of the species Salix viminalis (clones Inger, Tordis, Sven, RAPP and ORM) were determined, namely the share of bark in chips, chemical composition of combustibles of chips, ash content in dry mass of biofuel, and lower heating value. Green wood chips made of dendromass from plantations consist of juvenile wood and juvenile bark. The share of juvenile bark in green wood chips of the analyzed clones of willow is XB = 17.16 ± 1.12%. The nitrogen content in green wood chips made of Salix viminalis trees grown on plantation is 3.3 times higher than the nitrogen content in the combustibles of fuelwood of Fagus silvatica, which has negative impact on the production of emissions – concentration of nitrogen oxides NOx in combustion products. The share of inorganic substances determined by the form of ash content Ad = 0.94% puts the analyzed biofuel into the category of low-ash fuels. The lower heating value of green wood chips of the individual Salix viminalis clones analyzed in dry state is Qn = 18.2 MJ.kg^-1.