Prediction of Moisture Content Changes during Natural Drying of Forest Residues Using Load-cell-mounted Drying Platforms

The use of renewable energy has increased markedly with growing global efforts to reduce fossil carbon emissions. Among various renewable energy sources, forest residues produced from timber harvesting are considered effective energy production sources. The combustion effectiveness of forest residue...

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Veröffentlicht in:Sensors and materials 2021-01, Vol.33 (11), p.3873
Hauptverfasser: Choi, Yun-Sung, Jeong, In-Seon, Cho, Min-Jae, Mun, Ho-Seong, Oh, Jae-Heun, Han, Sang-Kyun
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container_issue 11
container_start_page 3873
container_title Sensors and materials
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creator Choi, Yun-Sung
Jeong, In-Seon
Cho, Min-Jae
Mun, Ho-Seong
Oh, Jae-Heun
Han, Sang-Kyun
description The use of renewable energy has increased markedly with growing global efforts to reduce fossil carbon emissions. Among various renewable energy sources, forest residues produced from timber harvesting are considered effective energy production sources. The combustion effectiveness of forest residues is highly affected by their quality, particularly their moisture content. However, determining when forest residues reach the target moisture content (< 30%) during natural drying is a challenge to forest managers. Therefore, in this study, we investigated the changes in moisture content during the natural drying of forest residues and developed a prediction model for estimating the changes in moisture content using meteorological factors. The changes in moisture content had similar patterns to the changes in precipitation during the natural drying of forest residues, and the minimum natural drying time required to reach the target moisture content was approximately 26 days in summer. A prediction model for estimating the changes in moisture content was developed using meteorological factors including precipitation, wind speed, effective humidity, and solar radiation quantity; the average absolute difference between the measured and predicted moisture contents was 22.7% in the model validation. Although the developed prediction model has limited accuracy in estimating the precise moisture content of forest residues during natural drying, it could aid forest managers to roughly determine the appropriate production and transportation times of forest residues for energy production.
doi_str_mv 10.18494/SAM.2021.3608
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subjects Alternative energy sources
Drying
Energy harvesting
Forest management
Model accuracy
Moisture content
Prediction models
Renewable energy sources
Renewable resources
Residues
Solar radiation
Timber
Wind speed
title Prediction of Moisture Content Changes during Natural Drying of Forest Residues Using Load-cell-mounted Drying Platforms
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