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Pressure drop through in‐bulk flax seeds
Author(s) -
Pagano A. M.,
Crozza D. E.,
Nolasco S. M.
Publication year - 1998
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/s11746-998-0326-y
Subject(s) - airflow , pressure drop , chaff , drop (telecommunication) , materials science , composite material , bulk density , mechanics , environmental science , botany , thermodynamics , soil science , electrical engineering , engineering , physics , soil water , biology
The airflow resistance of in‐bulk flax seeds (Linum usitatissimum) and the effect of airflow rate, bed depth, type of packing, and presence of foreign material (“fines” and “chaff”) were studied. A good fit of the experimental data ( R > 0.993) was obtained through the model DPL = cQ + dQ 2 (where DPL is pressure drop per unit of bed depth, Pa/m; Q is airflow rate, m 3 /s‐m 2 ; c and d are constants; and airflow range is 0.011–0.141 m 3 /s‐m 2 ). The airflow resistance increases when bulk density and bed depth increase. In dense packing the pressure drop is 1.3 to 1.5 times the pressure drop in loose packing. The resistance increases with the increase of fines and decreases with the increase of chaff.