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ANALIZA UTICAJA SASTAVA SIROVINE NA ENERGETSKU VRIJEDNOST DRVNOG PELETA NA PROSTORU BOSNE I HERCEGOVINE

ISSN 2232-755X
UDC:674.093.6

Tatjana Botić, Dijana Drljača, Aleksandra Šinik ,

Šume i šumska zemljišta se prostiru na preko 50% ukupne površine Bosne i Hercegovine. Srazmjerno šumskom fondu razvijena je drvna industrija, posebno primarna prerada drveta, zbog čega BiH raspolaže velikim količinama, još uvijek nedovoljno iskorišćene, otpadne drvne biomase. U skladu sa postavljenim ciljem približavanja zahtjevima EU podsticanja proizvodnje i korišćenja obnovljivih izvora energije, BiH može ostvariti velike poslovne aktivnosti vezane za preradu drvne biomase u drvni pelet. Cilj istraživanja u ovom radu je bio ispitati uticaj hemijskog sastava i oblika sirovine najzastupljenijih vrsta drveća na prostoru BiH na kvalitet peleta od drvne biomase kao goriva.

Ključne riječi: šuma, kvalitet peleta, biomasa, pelet, obnovljiva energija

ANALYSIS OF THE INFLUENCE OF RAW MATERIALS COMPOSITION ON THE ENERGY VALUE OF WOOD PELLETS ON THE TERRITORY OF B&H

Tatjana Botić, Dijana Drljača, Aleksandra Šinik ,

Forest and forest lands spread on over 50% of the total area of Bosnia and Herzegovina. Forest industry was developed in proportion to the forest fund, especially primary wood processing. Because of that there are large amounts of waste wood biomass, still underutilized. In accordance with set goals of approaching EU requirements, incentives for production and use of renewable energy sources, B&H can achieve big business activities related to processing wood biomass. The aim of the research in this work was to examine the impact of the chemical composition and the shape of the raw material of the most common wood types in the area of B&H on the quality of wood biomass pellets as a fuel. The impact of moisture resins and fats content, lignin, and also the impact of the shape of raw material, on calorific value of pellets are tested. Wood pellets analyzed for this study are industrially produced in the plant for pelletization in Srbac. As a starting material for the production of wood pellets, various forms of wood waste remains of primary wood processing were used. Those are: chips from sawmill residues without bark, chips with higher percentage of bark, sawdust and chips from sawmill without bark, which were collected across Bosnia and Herzegovina. By analysing key quality parameters, such as moisture content, ash content and lower heating value, and threshold values defined by ENplus standard for wood pellets, it was concluded that all tested samples do not meet the prescribed standards. For the successful use of wood pellets it is very important to standardize quality and adherence to adapted standards in production.

Key words: wood, pellet quality, biomass pellets, renewable energy