Title:
Fuel Quality Changes during the Storage of Wood Chips in Large Piles
Author(s):
Mendel, T., Hofmann, N., Schulmeyer, F., Borchert, H., Kuptz, D., Hartmann, H.
Document(s):
Paper
Slide presentation
Abstract:
Biological degradation processes during storage of fresh wood chips in large piles may cause high dry matter (DM) losses and a decline in fuel quality. To monitor storage effects, two field trials were conducted i. e. one during winter and one during summer. For each trial, four piles of wood chips were established using two raw materials and two treatments: wood chips from forest residues (FRC) and from energy roundwood (ERC) covered with a fleece and uncovered. Additionally, two piles of unchipped raw material were established during each trial to compare storage effects of chipped and unchipped material. During winter storage, drying of wood chips was low. DM losses amounted up to 1.6 w-% and 0.7 w-% per month for FRC and ERC, respectively. During summer, fuel quality of wood chips in piles improved due to large drying effects. However, DM losses of ERC were twice as high compared to winter. Storage of unchipped material did not improve drying but led to lower DM decomposition compared to storage in wood chip piles. Thereby, the loss of bark material and needles increased total DM losses in unchipped storage piles but positively affected fuel quality parameters.
Keywords:
storage, wood chips, fuel quality
Topic:
Biomass Resources
Subtopic:
Biomass feedstock, residues and by-products
Event:
24th European Biomass Conference and Exhibition
Session:
1BO.1.2
Pages:
53 - 59
ISBN:
978-88-89407-165
Paper DOI:
10.5071/24thEUBCE2016-1BO.1.2
Price:
FREE
