Effects of length on mechanical durability of various wood pellets
Makaleler > Tam Makale · 2017
Yazarlar: R.C. Akdeniz, O. Esmer
Hungarian Agricultural Engineering, Uluslararası, 2017, ss 62-71
Özet
In this study, an investigation was made of the effect of length on the mechanical durability of pellets made from Valonia Oak industrial waste, Calabrian Pine residue and sawdust at various mixture ratios of these materials.The pellets were classified into six length classes of 3.15 mm < PL ≤ 20 mm, 20 mm < PL ≤ 35 mm, 35 mm < PL ≤ 38 mm, 38 mm < PL ≤ 40 mm, 40 mm < PL ≤ 45 mm and 45 mm < PL, and each length class was classified into four categories (C-I, C-II, C-III and C-IV) according to surface cracks.Mechanical durability test results showed that, in the 66.5-33.5% acorn-pine mixture ratio, only the 20 mm < PL ≤ 35 mm-C-I pellets met the 97.5% mechanical durability limit of ENplus, but most of the other classes met the minimum PFI standard mechanical durability limit of 95%.In the free fall tests, all length classes showed the same results for C-I pellets: these did not break into pieces easily, whereas C-IV pellets broke into pieces at the first fall.Also, their weight loss was greater than that of the other categories.