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Izdelava peletov iz invazivnih tujerodnih lesnih vrst
Smolnikar, Pavel (Author), Gornik Bučar, Dominika (Mentor) More about this mentor... This link opens in a new window

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Abstract
Zaradi vse večjih potreb po energiji in skrbi za ohranjanje okolja postaja izkoriščanje lesne biomase vse bolj pomembno. Sodobna vrsta trdih biogoriv so lesni peleti, ki imajo visoko energijsko gostoto, nizke stroške prevoza in skladiščenja, enostavno rokovanje, manjše onesnaževanje, možnost avtomatizacije in visoko stopnjo optimizacije izdelave. V raziskavi smo pelete izdelali iz pet invazivnih tujerodnih drevesnih vrst (divji kostanj, amerikanski javor, robinja, trnata gledičevka in veliki pajesen) in smreke ter mešanice surovine invazivnih tujerodnih vrst in smreke, skupno 16 vrst peletov. Izdelanim peletom smo določili najpomembnejše fizikalne in mehanske lastnosti (vlažnost, gostota nasutja, mehanska obstojnost, vsebnost pepela). Rezultate smo primerjali z mejnimi vrednostmi opredeljenimi s standardom SIST EN ISO 17225-2. Vlažnosti in gostote nasutja vseh izdelanih vrst peletov so izpolnjevale zahteve standarda. Mehanska obstojnost izdelanih peletov ni dosegala zahtev standarda, pri čemer so imele gostejše lesne vrste višjo mehansko obstojnost. Ugotovili smo, da priprava in sestava vhodne surovine močno vpliva na proces peletiranja in lastnosti peletov. Ugotavljamo, da imajo robinija, trnata gledičevka in visoki pajesen največji potencial za proizvodnjo peletov.

Language:Slovenian
Keywords:lesni peleti, peletiranje, invazivne tujerodne lesne vrste, vlažnost, gostota nasutja, mehanska obstojnost, vsebnost pepela
Work type:Bachelor thesis/paper (mb11)
Tipology:2.11 - Undergraduate Thesis
Organization:BF - Biotechnical Faculty
Year:2020
Publisher:[P. Smolnikar]
UDC:630*839.813
COBISS.SI-ID:29047811 Link is opened in a new window
Views:59
Downloads:15
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Secondary language

Language:English
Title:Pellets production of invasive alien plants
Abstract:
Due to the growing need for energy and more sustainable use of resources, the use of wood biomass is becoming increasingly important. One modern type of solid biofuel is wood pellets, with a high energy density, low transport and storage costs, easier handling, less pollution, the possibility of automation and high rate optimization of production. In this research, the wood biomass from five invasive alien species (horse chestnut, boxelder maple, black locust, honey locust and tree of heaven) and spruce, as well as mixtures (blends) of spruce and alien species, were used to produce 16 different combinations of pellets. The most important physical and mechanical pellet properties (moisture content, bulk density, mechanical durability, ash content) were determined. The results were compared with the values specified for the quality classes in the standard SIST EN ISO 17225-2. The moisture content and bulk density of all manufactured pellet types (combinations) met the quality requirements of the standard. The mechanical durability of the manufactured pellets did not meet the requirements of the standard, as the mechanical durability of denser wood species was higher. The results show that the preparation and type of raw material strongly influences the pelletizing process and pellet quality. Black locust, honey locust and tree of heaven appear to have the highest potential for pellet production.

Keywords:wood pellets, pelleting, invasive alien wood species, moisture content, bulk density, mechanical durability, ash content

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