Abstract
The latest results of investigations related to storage of fuel-wood which has been chopped into various sizes are presented. A description is given of an experiment on the storage of fuel-wood divided into 16mm (chips), 50mm (fine chunks), 150mm (coarse chunks) and 250mm in cut length. The increase in temperature occurring in stacks of wood chips or chunks was shown to be greater where the pieces of wood are smallest. The smaller the pieces of wood have been chopped the quicker they dry out. Rain amounts and season influence these conditions. Most methods for the determination of the amount of dry matter in a stack of chunkwood or chips etc. give uncertain results. It appears that traditional calculations of the energy content of a stack of firewood (250mm length) at the beginning and termination of the storage period do not take into consideration the fact that the fuel`s calorimetric heat value can change during storage. Energy consumption for chopping and sawing wood is low. The experiment carried out on storage of various sizes of wood fuels showed that increase of temperature in stacks of coarse woodchunks was low and dependent on the temperature of the surrounding air. Chip and fine
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Citation Formats
Heding, N, Kofman, P D, and Morsing, M.
Storage of chunkwood, chips and firewood. Survey of literature and practical experiments; Lagring af braendelsesflis, chunk og braende; Litteraturgennemgang og et praktisk forsoeg.
Denmark: N. p.,
1993.
Web.
Heding, N, Kofman, P D, & Morsing, M.
Storage of chunkwood, chips and firewood. Survey of literature and practical experiments; Lagring af braendelsesflis, chunk og braende; Litteraturgennemgang og et praktisk forsoeg.
Denmark.
Heding, N, Kofman, P D, and Morsing, M.
1993.
"Storage of chunkwood, chips and firewood. Survey of literature and practical experiments; Lagring af braendelsesflis, chunk og braende; Litteraturgennemgang og et praktisk forsoeg."
Denmark.
@misc{etde_10141241,
title = {Storage of chunkwood, chips and firewood. Survey of literature and practical experiments; Lagring af braendelsesflis, chunk og braende; Litteraturgennemgang og et praktisk forsoeg}
author = {Heding, N, Kofman, P D, and Morsing, M}
abstractNote = {The latest results of investigations related to storage of fuel-wood which has been chopped into various sizes are presented. A description is given of an experiment on the storage of fuel-wood divided into 16mm (chips), 50mm (fine chunks), 150mm (coarse chunks) and 250mm in cut length. The increase in temperature occurring in stacks of wood chips or chunks was shown to be greater where the pieces of wood are smallest. The smaller the pieces of wood have been chopped the quicker they dry out. Rain amounts and season influence these conditions. Most methods for the determination of the amount of dry matter in a stack of chunkwood or chips etc. give uncertain results. It appears that traditional calculations of the energy content of a stack of firewood (250mm length) at the beginning and termination of the storage period do not take into consideration the fact that the fuel`s calorimetric heat value can change during storage. Energy consumption for chopping and sawing wood is low. The experiment carried out on storage of various sizes of wood fuels showed that increase of temperature in stacks of coarse woodchunks was low and dependent on the temperature of the surrounding air. Chip and fine woodchunk stacks showed a higher temperature rise which lasted longer and was not so dependent on the temperature of the surrounding air, though chips were more influenced by the latter. After two years storage the moisture content of the fine woodchunks fell by 2% - 9.5%. Stacks with the largest pieces of wood had dried best. Changes in temperature in relation to storage could indicate a decomposition of substance and thus a loss of dry matter, mostly with regard to the chips and fine woodchunks. (AB) (20 refs.)}
place = {Denmark}
year = {1993}
month = {Dec}
}
title = {Storage of chunkwood, chips and firewood. Survey of literature and practical experiments; Lagring af braendelsesflis, chunk og braende; Litteraturgennemgang og et praktisk forsoeg}
author = {Heding, N, Kofman, P D, and Morsing, M}
abstractNote = {The latest results of investigations related to storage of fuel-wood which has been chopped into various sizes are presented. A description is given of an experiment on the storage of fuel-wood divided into 16mm (chips), 50mm (fine chunks), 150mm (coarse chunks) and 250mm in cut length. The increase in temperature occurring in stacks of wood chips or chunks was shown to be greater where the pieces of wood are smallest. The smaller the pieces of wood have been chopped the quicker they dry out. Rain amounts and season influence these conditions. Most methods for the determination of the amount of dry matter in a stack of chunkwood or chips etc. give uncertain results. It appears that traditional calculations of the energy content of a stack of firewood (250mm length) at the beginning and termination of the storage period do not take into consideration the fact that the fuel`s calorimetric heat value can change during storage. Energy consumption for chopping and sawing wood is low. The experiment carried out on storage of various sizes of wood fuels showed that increase of temperature in stacks of coarse woodchunks was low and dependent on the temperature of the surrounding air. Chip and fine woodchunk stacks showed a higher temperature rise which lasted longer and was not so dependent on the temperature of the surrounding air, though chips were more influenced by the latter. After two years storage the moisture content of the fine woodchunks fell by 2% - 9.5%. Stacks with the largest pieces of wood had dried best. Changes in temperature in relation to storage could indicate a decomposition of substance and thus a loss of dry matter, mostly with regard to the chips and fine woodchunks. (AB) (20 refs.)}
place = {Denmark}
year = {1993}
month = {Dec}
}