モデル試料を用いた天火加熱の伝熱機構に関する実験的検討

DOI

書誌事項

タイトル別名
  • Experimental Studies on the Heat Transfer during Baking of Food Models.

抄録

A series of food models containing different amounts of water were baked at around 200°C. The effect of moisture content on the heat transfer between the hot air and the surface of each sample was investigated in terms of the internal heat flux.<BR>The rate of internal temperature rise of the samples during baking decreased with increasing moisture content, the opposite of that in a steaming or frying process.<BR>The heat transfer coefficient and Biot number tended to reduce with increase in the moisture of a sample from 7.1 to 48.7%. This may have been due to the latent heat of vaporization of water on the surface of the sample.<BR>The internal heat flux during baking, however, increased with increasing moisture content. The thermal diffusivity increased from 0.65 × 10 -7 to about 1.0 × 10 -7m2/s with increasing moisture of the samples.<BR>The heat exchanged between the hot air and a sample during the baking process was characterized by the vaporization of water which resisted heat flux from the hot hot air into the inside of the sample.

収録刊行物

  • 日本家政学会誌

    日本家政学会誌 50 (5), 475-480, 1999

    一般社団法人 日本家政学会

詳細情報 詳細情報について

  • CRID
    1390001206333391360
  • NII論文ID
    130003851722
  • DOI
    10.11428/jhej1987.50.475
  • ISSN
    18820352
    09135227
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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