生籾の除湿乾燥に関する研究 循環式乾燥機での乾燥特性と熱効率:循環式乾燥機での乾燥特性と熱効率  [in Japanese] Rough Rice Drying by Heat Pump Dehumidification. Drying Characteristics and Thermal Efficiency on Recirculating Type Dryer.:Drying Characteristics and Thermal Efficiency on Recirculating Type Dryer  [in Japanese]

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Abstract

普及している循環式乾燥機に新たな複数の貯留槽を組み合わせた貯留乾燥システムを想定し, 市販の循環式乾燥機のバーナ加熱部を0.3kW容量の除湿機に換えて, 生籾の除湿乾燥を試みた。その結果, 張込量1,421kgと8.7%の乾燥スパンに対し, 毎時0.07%の乾燥率で5.4日を要した。しかし, 循環回数が多くなったため, 割れ籾や脱ぷ粒の増加傾向が見られた。熱効率は電熱加熱の0.7→0.4より高い0.9→0.7で経過した。ここに, 除湿機を装備した循環式乾燥機が籾の緩慢乾燥の過程でその品質を保持しつつ熱を有効に利用して, 乾燥仕上がりに至ることが確認された。

Experiments on dehumidifying drying of rough rice were done assuming the widely used dry-temporary storage system combined with a recirculating type dryer and several newly provided storage bins. The usual kerosene burner in the recirculating type dryer was replaced with a dehumidifier having a heat exchange capacity of 0.3kW. From the experimental results, it was confirmed that even under the slow rate of drying, the recirculating type dehumidifying dryer could dry the rough rice to the needed storage moisture content, maintain the quality and still have a good thermal efficiency.

Journal

  • JOURNAL of the JAPANESE SOCIETY of AGRICULTURAL MACHINERY

    JOURNAL of the JAPANESE SOCIETY of AGRICULTURAL MACHINERY 56(4), 13-20, 1994

    The Japanese Society of Agricultural Machinery and Food Engineers

Cited by:  2

Codes

  • NII Article ID (NAID)
    130004366665
  • NII NACSIS-CAT ID (NCID)
    AN00200470
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    0285-2543
  • NDL Article ID
    3896175
  • NDL Source Classification
    RB57(農産--農業工学--農業機械・器具)
  • NDL Source Classification
    ZR7(科学技術--農林水産--農産)
  • NDL Call No.
    Z18-387
  • Data Source
    CJPref  NDL  J-STAGE 
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