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首页> 外文期刊>Holz als Roh- und Werkstoff >A mathematical model for moisture movement during continous and intermittent drying of Eucalyptus saligna
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A mathematical model for moisture movement during continous and intermittent drying of Eucalyptus saligna

机译：连续连续和间歇干燥桉树时水分运动的数学模型

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摘要

A modified diffusion-based mathematical model is proposed to describe the moisture movement during continuous and intermittent drying of Eucalyptus saligna. This model includes the temperature change, the surface drying coefficient (beta (n) ) and 2 diffusion coefficients [from green to FSP (D (f) ) and from FSP to dry condition (D (o) )] as important parameters. The final model expression obtained was M = exp (- 25 beta (n) (2) D (t) /l (2)) with the beta (n) used was 1.5807 kg m(-2) s(-1), the D (f) was 2.26 x 10(-11) m(2) s(-1), and the D (o) was 5.85 x 10(-12) m(2) s(-1). The range of temperature change between heating and non-heating phases in the intermittent drying regimes was from 24.9 to 31.8 A degrees C. The R (2) values obtained when the model was fitted into the drying data of different intermittent regimes ranged from 71.5 to 85.9%. The R (2) value was 87.4% when the model was fitted into continuous trial data. The high values of R (2) indicate that the model can be used to understand the moisture reduction both in intermittent and continuous regimes.
机译：提出了一种改进的基于扩散的数学模型来描述连续和间歇干燥桉树的水分运动。该模型包括温度变化，表面干燥系数（beta（n））和2个扩散系数[从绿色到FSP（D（f））和从FSP到干燥状态（D（o））]作为重要参数。获得的最终模型表达式为M = exp（-25 beta（n）（2）D（t）/ l（2）），使用的beta（n）为1.5807 kg m（-2）s（-1）， D（f）为2.26 x 10（-11）m（2）s（-1），D（o）为5.85 x 10（-12）m（2）s（-1）。间歇干燥方案中加热和非加热阶段之间的温度变化范围为24.9至31.8 A摄氏度。将模型拟合到不同间歇方案中的干燥数据时获得的R（2）值范围为71.5至85.9％。当将模型拟合到连续试验数据中时，R（2）值为87.4％。 R（2）的高值表明该模型可用于了解间歇和连续方式下的水分减少量。

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  • 来源
    《Holz als Roh- und Werkstoff》 |2018年第4期|1165-1172|共8页
  • 作者

    Yuniarti Karnita; Brodie Graham; Ozarska Barbara; Harris Gerry; Waugh Gary;

  • 作者单位

    Minist Environm & Forestry, Forest Prod Res & Dev Ctr, Kota Bogor, Indonesia;

    Univ Melbourne, Sch Ecosyst & Forest Sci, Burnley Campus,500 Yarra Blvd, Burnley, Vic 3121, Australia;

    Univ Melbourne, Sch Ecosyst & Forest Sci, Burnley Campus,500 Yarra Blvd, Burnley, Vic 3121, Australia;

    Univ Melbourne, Sch Ecosyst & Forest Sci, Burnley Campus,500 Yarra Blvd, Burnley, Vic 3121, Australia;

    Univ Melbourne, Sch Ecosyst & Forest Sci, Burnley Campus,500 Yarra Blvd, Burnley, Vic 3121, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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