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1 Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

1 2014

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Possibility of manufacturing of wooden briquettes with the addition of leaves

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Borysiuk P. , Ružinská E. , Stępowski A. , Jenczyk-Tołłoczko I.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2014

tom No. 87

12--17

Possibility of manufacturing of wooden briquettes with the addition of leaves. In this study, the influence of the addition of oak leaves on the properties of briquettes made from pine wood in the form of cubs with dimensions 155 mm x 102 mm x 65 mm was described. Five variants of briquettes were prepared. These variants were different in terms of wood/leaves ratio: 100% / 0%, 25% / 75%, 50% / 50%, 75% / 25% 0% / 100%. For manufactured briquettes, their heat of combustion, ash content and susceptibility for storage were examined. Obtained results confirm the possibility of utilization of biomass in the form of leaves in the production of wooden briquettes. Among the briquettes containing leaves, the highest heat of combustion and the lowest ash content characterized those containing 25% addition of leaves. However, it was found, that the storage of briquettes in a foil package, regardless of the content of leaves, slightly influences on the change in their shape, and the storage of briquettes without the protective foil causes their delamination and change in volume.