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首页> 外文期刊>Journal of food engineering >Determination of thermal diffusivity of persimmon flesh tissue using three-dimensional structure model based on X-ray computed tomography
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Determination of thermal diffusivity of persimmon flesh tissue using three-dimensional structure model based on X-ray computed tomography

机译：基于X射线计算机断层扫描的三维结构模型确定柿子肉组织的热扩散系数

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摘要

Computed tomography (CT) images were acquired for an intact fruit and the cell tissues of persimmon flesh using two types of X-ray a devices. The relationship between the porosity and mean CT value for small tissue samples having a volume of 0.3 mm x 03 mm x 0.3 mm was investigated. The three-dimensional microstructure of the issue was reconstructed using image processing software and heat transfer simulation was carried out based on the real structure model. The effective thermal conductivity of the tissue was determined by comparing the results of the three-dimensional (3D) model simulation with those of the homogeneous model simulation and was related to the porosity of the sample. The Brailsford model was selected as the most suitable model to predict the effective thermal conductivity of the tissue. The porosity, thermal conductivity and moisture distributions were visualized for an intact fruit based on analysis of high-resolution X-ray image. (C) 2017 Elsevier Ltd. All rights reserved.
机译：使用两种类型的X射线设备获取完整水果和柿果肉细胞组织的计算机断层扫描（CT）图像。研究了体积为0.3 mm x 03 mm x 0.3 mm的小组织样本的孔隙率与平均CT值之间的关系。使用图像处理软件重建了该问题的三维微观结构，并基于真实结构模型进行了传热模拟。通过将三维（3D）模型仿真的结果与均质模型仿真的结果进行比较，可以确定组织的有效导热率，并且与样品的孔隙率有关。选择Brailsford模型作为预测组织有效热导率的最合适模型。基于高分辨率X射线图像的分析，可以看到完整水果的孔隙率，导热率和水分分布。 （C）2017 Elsevier Ltd.保留所有权利。

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  • 来源
    《Journal of food engineering》 |2018年第3期|151-157|共7页
  • 作者

    Tanaka Fumihiko; Imamura Keitaro; Tanaka Fumina; Uchino Toshitaka;

  • 作者单位

    Kyushu Univ, Lab Postharvest Sci, Fac Agr, Higashi Ku, 6-10-1 Hakozaki, Fukuoka 8128581, Japan;

    Kyushu Univ, Grad Sch Bioresource & Bioenvironm Sci, Higashi Ku, 6-10-1 Hakozaki, Fukuoka 8128581, Japan;

    Kyushu Univ, Lab Postharvest Sci, Fac Agr, Higashi Ku, 6-10-1 Hakozaki, Fukuoka 8128581, Japan;

    Kyushu Univ, Lab Postharvest Sci, Fac Agr, Higashi Ku, 6-10-1 Hakozaki, Fukuoka 8128581, Japan;

  • 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

    X-ray computed tomography; Thermal diffusivity; Model; Porosity; Visualization;

    机译：X射线计算机体层摄影术;热扩散率;模型;孔隙率;可视化;

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