过热蒸汽干燥稻米力学特性试验
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国家自然科学基金资助项目(51076163、31171772)


Mechanical Characteristics of Rice Dried with Superheated Steam
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    摘要:

    利用正交试验,研究了过热蒸汽温度和风速对稻米力学特性的影响以及爆腰增率随干燥条件和含水率的变化规律。结果表明,过热蒸汽干燥稻米时稻米弹性模量不仅受自身含水率的影响,还受干燥条件的影响;过热蒸汽干燥稻米的爆腰增率与热风干燥情况基本相同。与传统的热风干燥相比,尽管过热蒸汽干燥温度较高,但稻米爆腰增率并未见恶化,且干燥速率快,能耗低。

    Abstract:

    Orthogonal experiments were designed to study the effects of temperature and velocity on the mechanical characteristics of brown rice, and the crack additional percentage of brown rice changing with drying condition and moisture content. The results showed that the modulus of elasticity was effected by both moisture content and drying conditions. The crack additional percentage of brown rice dried by superheated steam was closed to that of brown rice dried by hot air. Compared with conventional hot air drying, the crack additional percentage of brown rice dried with superheated steam was not worsen although the high temperature used, which had the advantages of higher drying rate and lower energy consumption. It was concluded that the superheated steam drying was a potential technology for drying rice.

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黄小丽,肖 波,王振华,杨德勇,刘相东.过热蒸汽干燥稻米力学特性试验[J].农业机械学报,2014,45(2):199-203. Huang Xiaoli, Xiao Bo, Wang Zhenhua, Yang Deyong, Liu Xiangdong. Mechanical Characteristics of Rice Dried with Superheated Steam[J]. Transactions of the Chinese Society for Agricultural Machinery,2014,45(2):199-203.

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  • 收稿日期:2013-03-26
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  • 在线发布日期: 2014-02-10
  • 出版日期: 2014-02-10