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Heat of combustion of various southern pine materialsAuthor(s): E.T. Howard
Source: Wood Science 5(3):194-197
Publication Series: Miscellaneous Publication
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DescriptionAs measured with an oxygen-bomb calorimeter, heats of combustion averaged about 8,600 Btu/ovendry lb. for stemwood, rootwood, earlywood, and latewood. In stemwood, 54 percent of the variation was related to extractive content. Values for bark were greatest in samples from the base of the tree and decreased with increasing height in tree. Values for resinous wood varied directly with extractive content. Needles and mixed bark had higher heats of combustion than stemwood. Spruce pine bark produced less heat than mixed bark from the other southern pine species. Samples from tops had lower values than other woody portions; of aU tree parts, old cones ranked lowest. Dried kraft black liquor averaged only 5,965 Btu/ovendry lb.
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CitationHoward, E.T. 1973. Heat of combustion of various southern pine materials. Wood Science 5(3):194-197
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