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Experimental Studies for Convective Drying of Potato

机译：马铃薯对流干燥的实验研究

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摘要

An experimental facility was built at the Indian Institute of Technology Delhi in order to examine the characteristics of convective drying of a moist object. The test facility consists of an inlet section, a divergent and convergent section, a settling chamber, a test section, and an outlet section. Initial moisture content and time-dependent moisture content of a rectangular shaped moist object (4 cm × 2 cm × 2 cm) are measured by this test facility. The potato slice was selected as a sample moist object. Moisture content was measured at different air temperatures of 40, 50, 60, and 70℃ with an air velocity of 2 mlsec. The density of potato slice was determined for various drying temperatures. The volume shrinkage during drying decreased almost linearly with moisture content. The percentage air pores and porosity increased gradually with decreasing moisture content and increasing drying air temperature. Volumes of water, air, and solid content of potato were determined at different drying air temperatures. The results are validated with theoretical data.
机译：为了检查潮湿物体的对流干燥特性，在德里印度理工学院建立了一个实验设施。测试设备包括入口部分，发散和收敛部分，沉降室，测试部分和出口部分。用该测试设备测量矩形潮湿物体（4 cm×2 cm×2 cm）的初始水分含量和随时间变化的水分含量。选择马铃薯切片作为样品潮湿物体。在40、50、60和70℃的不同空气温度下以2毫升秒的风速测量水分含量。在各种干燥温度下测定马铃薯切片的密度。干燥期间的体积收缩率几乎随水分含量呈线性下降。随着水分含量的降低和干燥空气温度的升高，空气孔和孔隙率的百分比逐渐增加。在不同的干燥空气温度下确定马铃薯的水，空气和固体含量的体积。结果得到理论数据的验证。

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  • 来源
    《Heat Transfer Engineering》 |2014年第15期|1288-1297|共10页
  • 作者

    V. P. CHANDRA MOHAN; PRABAL TALUKDAR;

  • 作者单位

    Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi, India;

    Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi -110016, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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