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Resistance of wood pellets to low airflow
Author(s) -
Yazdanpanah F.,
Lau A.,
Sokhansanj S.,
Lim C. J.,
Bi X.,
Melin S.
Publication year - 2012
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.20668
Subject(s) - pellets , airflow , pressure drop , materials science , porosity , composite material , mechanics , water content , drop (telecommunication) , moisture , thermodynamics , geotechnical engineering , geology , physics , engineering , mechanical engineering
The pressure drop versus low airflow from 0.000117 to 0.1 m/s was measured across a fixed bed of wood pellets. Wood pellets were on average 6.2 mm in diameter and 12 mm in length. The moisture content of wood pellets ranged from 2.8% to 8.1%. Four equations, Darcy, Shedd, Hukill and Ergun representing flow versus static pressure drop for bulk granules were fitted to the experimental data. At airflows below 0.01 m/s, the predicted pressure drops using all four equations deviated from experimental data. This deviation was the largest for the Darcy equation and the smallest for Ergun equation. © 2011 Canadian Society for Chemical Engineering
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