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Title: Hot Water Extracted and Non-extracted Willow Biomass Storage Performance: Fuel Quality Changes and Dry Matter Losses

Abstract

Dry matter losses (DML) and fuel quality changes occurring in storage piles are important parameters for the management of any biomass supply system. This study evaluates the effect of a hot water extraction pretreatment, harvest season, depth in storage pile and initial moisture content on willow biomass fuel quality (moisture, ash and higher/lower heating value) during storage, and models DML in storage piles based on experimental data. For the summer storage (SS) pile, mesh bags containing freshly harvested chips (FC) were inserted at 0.5-1 meter from the surface of the pile. For the winter storage pile (WS), the mesh bags were filled with FC and hot water extracted chips (HC) with three different initial moisture contents inserted in the shell (<0.45 cm) and the core (1-1.5m) of the pile. The ash contents through all sampling periods were in the range of 1.1 to 2.2% for FC and 0.6 to 2.1% for HC from both the shell and core of the WS pile. Higher ash contents, in the range of 2.1 to 3.4%, were observed in SS pile. Moisture contents of the storage piles had differing patterns over time. DML was the highest in the SS pile, reaching up to 33.6%more » after 140 days in storage; in contrast, there was no significant increase in DML over the first winter season. Although DML of FC and HC were in the same range during the initial storage period, DML of HC was 40% lower than FC after 180 days of storage. higher DML was observed in the core (e.g. 17.3% for FC) compared to the shell (e.g. 12.1% for FC) at the end of the WS trial. There was no particular trend observed between initial moisture and DML. This study suggests that a linear model is sufficient to estimate DML, but a nonlinear model may be needed for chips stored in SS piles for six months or longer. This study also suggests that DML is reduced in storage piles created in winter, and that willow chips kept in SS should be utilized within two months for a DML below a 10% threshold.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
State Univ. of New York (SUNY), Syracuse, NY (United States). College of Environmental Science and Forestry
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDA National Inst. of Food and Agriculture
OSTI Identifier:
1592782
Alternate Identifier(s):
OSTI ID: 1770828
Grant/Contract Number:  
EE0006638; 2012-68005-19703
Resource Type:
Published Article
Journal Name:
Frontiers in Energy Research
Additional Journal Information:
Journal Name: Frontiers in Energy Research Journal Volume: 7; Journal ID: ISSN 2296-598X
Publisher:
Frontiers Research Foundation
Country of Publication:
Switzerland
Language:
English
Subject:
09 BIOMASS FUELS; Willow biomass; storage; extraction; bioenergy; hot water extraction; dry matter loss; fuel quality

Citation Formats

Therasme, Obste, Volk, Timothy A., Eisenbies, Mark H., San, Hein, and Usman, Nasheett. Hot Water Extracted and Non-extracted Willow Biomass Storage Performance: Fuel Quality Changes and Dry Matter Losses. Switzerland: N. p., 2020. Web. doi:10.3389/fenrg.2019.00165.
Therasme, Obste, Volk, Timothy A., Eisenbies, Mark H., San, Hein, & Usman, Nasheett. Hot Water Extracted and Non-extracted Willow Biomass Storage Performance: Fuel Quality Changes and Dry Matter Losses. Switzerland. https://doi.org/10.3389/fenrg.2019.00165
Therasme, Obste, Volk, Timothy A., Eisenbies, Mark H., San, Hein, and Usman, Nasheett. Tue . "Hot Water Extracted and Non-extracted Willow Biomass Storage Performance: Fuel Quality Changes and Dry Matter Losses". Switzerland. https://doi.org/10.3389/fenrg.2019.00165.
@article{osti_1592782,
title = {Hot Water Extracted and Non-extracted Willow Biomass Storage Performance: Fuel Quality Changes and Dry Matter Losses},
author = {Therasme, Obste and Volk, Timothy A. and Eisenbies, Mark H. and San, Hein and Usman, Nasheett},
abstractNote = {Dry matter losses (DML) and fuel quality changes occurring in storage piles are important parameters for the management of any biomass supply system. This study evaluates the effect of a hot water extraction pretreatment, harvest season, depth in storage pile and initial moisture content on willow biomass fuel quality (moisture, ash and higher/lower heating value) during storage, and models DML in storage piles based on experimental data. For the summer storage (SS) pile, mesh bags containing freshly harvested chips (FC) were inserted at 0.5-1 meter from the surface of the pile. For the winter storage pile (WS), the mesh bags were filled with FC and hot water extracted chips (HC) with three different initial moisture contents inserted in the shell (<0.45 cm) and the core (1-1.5m) of the pile. The ash contents through all sampling periods were in the range of 1.1 to 2.2% for FC and 0.6 to 2.1% for HC from both the shell and core of the WS pile. Higher ash contents, in the range of 2.1 to 3.4%, were observed in SS pile. Moisture contents of the storage piles had differing patterns over time. DML was the highest in the SS pile, reaching up to 33.6% after 140 days in storage; in contrast, there was no significant increase in DML over the first winter season. Although DML of FC and HC were in the same range during the initial storage period, DML of HC was 40% lower than FC after 180 days of storage. higher DML was observed in the core (e.g. 17.3% for FC) compared to the shell (e.g. 12.1% for FC) at the end of the WS trial. There was no particular trend observed between initial moisture and DML. This study suggests that a linear model is sufficient to estimate DML, but a nonlinear model may be needed for chips stored in SS piles for six months or longer. This study also suggests that DML is reduced in storage piles created in winter, and that willow chips kept in SS should be utilized within two months for a DML below a 10% threshold.},
doi = {10.3389/fenrg.2019.00165},
journal = {Frontiers in Energy Research},
number = ,
volume = 7,
place = {Switzerland},
year = {2020},
month = {1}
}

Journal Article:
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https://doi.org/10.3389/fenrg.2019.00165

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