Journal
DRYING TECHNOLOGY
Volume 25, Issue 9, Pages 1463-1470Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/07373930701537062
Keywords
hysteresis; sorption isotherms; sorption models; wood
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Adsorption and desorption isotherms of pine, spruce, birch, and willow Salix viminalis v. Orm ( 2- year stem) under three temperature conditions ( 20, 50, 75 degrees C) in the range of water activity 0.0 - 0.9 were studied. In order to describe our experimental data, five models were implemented ( GAB, Peleg, Chung- Pfost, Oswin, Halsey) and compared. It was found that GAB and Peleg models provide the best fit to the experimental data. On the basis of GAB modeling, the monolayer moisture content for each kind of wood was calculated. Moreover, the hysteresis phenomenon was investigated. The influence of temperature and wood variety on sorption isotherms was also tested.
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