20.500.12556/RUL-184495 Validacija NIR spektroskopije za določanje kakovosti lesnih peletov Validation of NIR spectroscopy for wood pellet quality assessment V zadnjem desetletju se je v EU povečala raba lesne biomase, zlasti lesnih peletov, kar poudarja pomen zanesljivega nadzora kakovosti. Namen raziskave je bil ovrednotiti primernost bližnje rdeče (NIR) spektroskopije kot hitre metode za določanje kakovosti peletov v primerjavi z laboratorijskimi metodami po SIST EN ISO standardih. V raziskavi smo analizirali 14 vzorcev peletov kakovostnega razreda A1 z obema metodama ter primerjali vsebnost vlage, pepela, gostote nasutja in mehanske obstojnosti, pri čemer smo rezultate statistično ovrednotili z vidika ujemanja in ponovljivosti. Rezultati kažejo, da NIR spektroskopija omogoča hitro in učinkovito napoved ključnih kemijsko-fizikalnih parametrov kot sta vsebnost vlage in pepela, z dobro primerljivostjo s standardnimi laboratorijskimi metodami, medtem ko pri določanju lastnosti, kot je mehanska obstojnost in gostota nasutja, ostaja omejena. Z vidika praktične uporabe je zato primerna kot orodje za hitro oceno nekaterih parametrov, medtem ko laboratorijske metode ostajajo ključne za ugotavljanje skladnosti s standardi in certificiranje. The use of wood biomass, especially wood pellets, has increased in the EU over the past decade, emphasizing the importance of reliable quality control. The aim of this study was to evaluate the suitability of near-infrared (NIR) spectroscopy as a rapid method for determining pellet quality, in comparison with laboratory methods according to SIST EN ISO standards. Fourteen samples of A1 quality pellets were analysed using both methods, and the moisture content, ash content, bulk density, and mechanical durability were compared. The results were statistically evaluated for agreement and repeatability. The findings show that NIR spectroscopy enables rapid and efficient prediction of some key parameters like moisture and ash content, with good comparability to standard laboratory methods, although it remains limited in determining mechanical properties. From a practical perspective, it is therefore suitable as a tool for rapid assessment of certain parameters like bulk density, and mechanical durability. However, reference laboratory methods remain essential for determining compliance with standards and certification. NIR bližnja rdeča spektroskopija lesna biomasa peleti kakovost NIR near-infrared spectroscopy wood biomass pellets quality true false true Slovenski jezik Angleški jezik Članek v reviji 2026-07-08 13:22:25 2026-07-08 13:22:37 2026-07-09 04:14:25 0000-00-00 00:00:00 2026 0 0 Str. 39-52 no. 1 Vol. 75 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*8 2590-9932 10.26614/les-wood.2026.v75n01a03 284069123 RAZ_Stare_Darja_2026.pdf RAZ_Stare_Darja_2026.pdf 1 B6EC0B517B3FD30B37DF8DB2488632D1 5af1ba6144eafc7a4d811581388a6dc4cc92e6a2e0e4c613c4ffd5be432cc353 6a7556cf-7abf-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=237357 https://journals.uni-lj.si/les-wood/article/view/27341 1 3d56fdd4-7abf-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=237356 Biotehniška fakulteta Les 0 0 0