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Some remarks on evaluation of drying models of red beet particles

机译：关于评价红甜菜颗粒干燥模型的一些评论

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摘要

Drying behaviour of red beet particles was investigated in a laboratory type dryer, at constant air velocity 1 m/s and at constant temperature 60 ℃. The effect of initial material load, particle shape and size on the dehydration characteristics of red beet was investigated. The drying experiments were conducted at three levels of initial material load of 5.33, 10.67 and 16 kg/m~2. The following particle shapes were investigated: slices, cubes, and prisms. Red beet roots were cut into 3, 6 and 9 mm slice thickness, 6, 9 and 12 mm cube thickness, and 3, 6 and 9 mm prisms thickness. Length of square based prisms equalled 50 mm. The results have shown that, the initial material load, particle shape and size influence on the drying behaviour of red beet particles. The experimental dehydration data of red beet particles obtained were fitted to the semi-theoretical, empirical and theoretical models. The accuracies of the models were measured using the correlation coefficient (R), mean bias error (MBE), root mean square error (RMSE), reduced chi-square (X~2). and t-statistic method. AH models except that used by Wang and Singh described the drying characteristics of red beet particles satisfactorily. The effect of the characteristic dimension of the particle and initial material load on the drying models parameters were also determined.
机译：在实验室型干燥机中，在恒定风速1 m / s和恒定温度60℃下研究了红甜菜颗粒的干燥行为。研究了初始物料负载，颗粒形状和大小对红甜菜脱水特性的影响。干燥实验在初始物料负荷为5.33、10.67和16 kg / m〜2的三个水平下进行。研究了以下颗粒形状：切片，立方体和棱柱。将红甜菜根切成3、6和9毫米的切片厚度，6、9和12毫米的立方体厚度以及3、6和9毫米的棱柱厚度。方形棱镜的长度等于50毫米。结果表明，初始物料负荷，颗粒形状和尺寸对红甜菜颗粒的干燥行为有影响。将获得的红甜菜颗粒的实验脱水数据拟合到半理论模型，经验模型和理论模型。使用相关系数（R），平均偏差误差（MBE），均方根误差（RMSE），简化卡方（X〜2）来测量模型的准确性。和t统计方法。除了Wang和Singh所用的模型外，AH模型令人满意地描述了红甜菜颗粒的干燥特性。还确定了颗粒特征尺寸和初始物料负荷对干燥模型参数的影响。

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  • 来源
    《Energy Conversion & Management》 |2010年第12期|P.2967-2978|共12页
  • 作者

    Agnieszka Kaleta; Krzysztof Gornicki;

  • 作者单位

    Faculty of Production Engineering, Warsaw University of Life Sciences, ul. Nowoursynowska 164, 02-787 Warszawa, Poland;

    rnFaculty of Production Engineering, Warsaw University of Life Sciences, ul. Nowoursynowska 164, 02-787 Warszawa, Poland;

  • 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
  • 中图分类
  • 关键词

    red beet; drying; dehydration; modelling;

    机译：红甜菜烘干;脱水造型;

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