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首页> 外文期刊>Energy Conversion & Management >Energy and rice quality aspects during drying of freshly harvested paddy with industrial inclined bed dryer
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Energy and rice quality aspects during drying of freshly harvested paddy with industrial inclined bed dryer

机译：用工业倾斜床干燥机干燥新鲜收获的稻谷过程中的能量和米质方面

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摘要

The performance evaluation of any industrial dryer regarding energy consumption and product quality should be assessed to check its present status and to suggest for further efficient operation. An investigation was carried out to evaluate the impact of drying temperature and air flow on energy consumption and quality of rice during paddy drying with industrial inclined bed dryer (IBD) with average holding capacity of 15 ton in the selected complexes of Padiberas Nasional Berhad (BERNAS)-the national paddy custodian of Malaysia. In reducing paddy moisture content (mc) from 22% to 23% wet basis (wb) down to around 12.5% wb, the final mc, the specific electrical (in terms of primary energy) and the specific thermal energy consumption were found to be varied between 1.44 to 1.95 M J/kg water evaporated and 2.77 to 3.47 M J/kg water evaporated, respectively. Analysis revealed that the specific electrical energy consumption was around 20% lesser and the specific thermal energy consumption of IBDs was around 10% higher during drying with air temperature of 41-42 ℃ than drying with 38-39 ℃ in reducing paddy me from 22% to 23% (wb) down to around 12.5% (wb). However, paddy being with almost same initial mc dried using drying temperature of 38-39 ℃, IBDs yielded 1-4% higher head rice yield while milling recovery and whiteness were comparable at acceptable milling degree and transparency. The bed air flows between 0.27 and 0.29 m~3 m~2 s~(-1) resulted in higher head rice yield slightly while its effect on drying time was not prominent so much. For paddy with initial moisture content below 23% wb, it is recommended that drying air temperature should not be higher than 39 ℃ in order to maintain rice quality at reasonable energy consumption.
机译：应该评估任何工业干燥机在能耗和产品质量方面的性能评估，以检查其当前状态并提出进一步有效运行的建议。进行了一项研究，以评估在选定的帕德伯拉斯国家农牧区（BERNAS）中，平均持水量为15吨的工业倾斜床干燥机（IBD）在水稻干燥过程中干燥温度和空气流量对稻米能耗和质量的影响。 ）-马来西亚的国家稻米保管人。在将稻田的水分含量（mc）从湿基（wb）的22％降低到23％（wb）时，最终的mc，比电（以一次能量计）和比热能消耗为蒸发水分别在1.44至1.95 MJ / kg水和2.77至3.47 MJ / kg水之间变化。分析表明，在41-42℃的空气温度下干燥的过程中，IBD的比电能耗要低约20％，IBD的比热能能耗要比38-39℃的干燥时高约10％，从而使稻谷减少22％降至23％（wb），降至约12.5％（wb）。然而，在干燥温度为38-39℃的情况下，稻谷的初始mc干燥几乎相同，IBDs的稻米产量提高1-4％，而在可接受的研磨度和透明度下，碾磨回收率和白度可比。床内空气流量介于0.27至0.29 m〜3 m〜2 s〜（-1）之间，导致稻米单产略高，但对干燥时间的影响并不明显。对于初始水分含量低于23％wb的水稻，建议干燥空气温度不应高于39℃，以便在合理的能耗下保持稻米质量。

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  • 来源
    《Energy Conversion & Management》 |2014年第1期|389-395|共7页
  • 作者

    M.S.H. Sarker; M. Nordin Ibrahim; N. Ab. Aziz; P. Mohd. Salleh;

  • 作者单位

    Department of Process and Food Engineering, Universiti Putra Malaysia (UPM), 43400 Serdang, Salangor, Darul Ahsan, Malaysia,Department of Food Engineering and Technology, Ha Jee Mohammad Danesh Science and Technology University (HSTU), Dinajpur 5200, Bangladesh;

    Department of Process and Food Engineering, Universiti Putra Malaysia (UPM), 43400 Serdang, Salangor, Darul Ahsan, Malaysia;

    Department of Process and Food Engineering, Universiti Putra Malaysia (UPM), 43400 Serdang, Salangor, Darul Ahsan, Malaysia;

    Packaging and Handling Programme, Food Technology Research Centre, MARD1, 43400 Serdang, Salangor, Darul Ahsan, Malaysia;

  • 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

    Industrial paddy drying; Inclined bed dryer; Freshly harvested paddy; Specific energy consumption; Rice quality;

    机译：工业水稻干燥;倾斜床干燥机;新鲜收获的稻谷;单位能耗;大米品质;

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