Effects of outside storage on the energy potential of hardwood particulate fuels. Part II. Higher and net heating values
Fuel management planning requires knowledge of what happens to woody materials when stored outdoors in large piles. Part I of this series reported temperature and moisture content (MC) changes in cone-shaped piles up to 20 feet high. This paper reports changes in higher and net heating values. Higher heating values of the three fuels studied - hardwood whole-tree chips, bark, and sawdust - were relatively constant during the first 4 months of storage. By the end of the year, however, they declined by 9, 7, and 3%, respectively. These decreases coupled with increases in fuel MC resulted in significant declines in average net heating values. After 1 year of storage in 15-foot piles, average net heating values of whole-tree chips, sawdust, and bark declined by 24, 40, and 50%, respectively. Over half of the decline took place in the first 60 days. Losses for whole-tree chips were less when stored in 20-foot piles than when stored in 10- or 15-foot piles. Losses can be reduced by storing larger sized particles, increasing pile heights, and shortening storage cycles to 60 days or less.
- Research Organization:
- Virginia Tech., Blacksburg
- OSTI ID:
- 7065435
- Journal Information:
- For. Prod. J.; (United States), Vol. 3:11/12
- Country of Publication:
- United States
- Language:
- English
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Effects of outside storage on the energy potential of hardwood particulate fuels: part 1. Moisture content and temperature
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WOOD FUELS
CALORIFIC VALUE
STORAGE
WEATHERING
WOOD WASTES
FIELD TESTS
MOISTURE
STOCKPILES
COMBUSTION PROPERTIES
ENERGY SOURCES
FUELS
SOLID WASTES
TESTING
WASTES
090400* - Solid Waste & Wood Fuels- (-1989)
140504 - Solar Energy Conversion- Biomass Production & Conversion- (-1989)