Toplotne lastnosti in kakovost lesnih pelet : magistrsko delo

Pečnik, Nina (author), Kosec, Borut (mentor)

V okviru magistrskega dela smo analizirali in ovrednotili 8 različnih vrst peletov. Njihove sestave so prikazane v tabeli 3 v poglavju Rezultati. Opisana je splošna delitev lesnih goriv, postopek izdelave peletov, kako določamo kakovost, cene na tržišču v Republiki Sloveniji,.. Predstavljen je tudi kalorimeter IKA C200, s katerim merimo zgorevalno toploto peletov. Glede na mednarodni standard SIST EN ISO 17225 – 2 smo merili delež pepela, higrovlage, hlapno in zgorevalno toploto ter jih uvrstili v razrede A1, A2, B. Možno je tudi, da se peleti ne uvrstijo v nobenega izmed razredov. Rezultati meritev so podani v tabelah, za lažjo predstavo pa je za vsako vrsto peletov izrisan tortni diagram, ki prikazuje v deležih, kako je sestavljen.

• Language: Slovenian
• Keywords: lesni peleti, pepel, zgorevalna toplota, nasipna gostota, higrovlaga, fiksen ogljik
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: NTF - Faculty of Natural Sciences and Engineering
• Place of publishing: Ljubljana
• Publisher: N. Pečnik
• Year: 2024
• Number of pages: XIV, 46 str.
• PID: 20.500.12556/RUL-162036
• UDC: 669
• COBISS.SI-ID: 212046339
• Publication date in RUL: 18.09.2024

Secondary language

• Language: English
• Title: Thermal properties and quality of wood pellets : master's thesis

Abstract

As part of the master's thesis, we analyzed and evaluated 8 different types of pellets. Their compositions are shown in Table 3 in the Results chapter. The general division of wood fuels is described, the pellet production process, how quality is determined, prices on the market in the Republic of Slovenia,.. The IKA C200 calorimeter, which measures the combustion heat of pellets, is also presented. According to the international standard SIST EN ISO 17225 - 2, we measured the share of ash, hygromoisture, volatile and combustion heat and classified them into classes A1, A2, B. It is also possible that the pellets do not fall into any of the classes. The results of the measurements are given in tables, and for an easier representation, a pie chart is drawn for each type of pellet, which shows in proportions how it is composed.

• Keywords: wood pellets, ash, heat of combustion, bulk density, hygromoisture, fixed carbon