過冷却水の凝固に及ぼす電場の影響に関する実験的検討 Experimental study on the effect of the electric filed on the freezing of the supercooled water

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Effect of the electric field on freezing of supercooled water was investigated, experimentally. The experiment was carried out by charging the electrode whose tip was inserted into supercooled water. It was found that supercooled water freeze instantly by applying the electric charge. There were many papers in the past which dealt with the effect of electrical field on freezing of supercooled water, but with a high voltage, order of a few kV. However, through this experimental study, it was found that the supercooled water can freeze at the voltage less than 100V, if D.C. voltage is applied directly to supercooled water. There was no deformation of water droplet or spark discharge as some papers suggest as a reason for the effect. It was also found that the probability of freezing depends upon the degree of supercooling, value of D.C. voltage applied, size of electrode and the distance between two electrods. The mechanism of this effect was discussed and suggested as follows: High electric field is formed locally due to the existence of surface edge or small projections on the surface. Water molecule which has a polarity is drawn near to the cluster on the surface whose motion is restricted by the existence of electric field. Therefore, embryo can transform to nucleus, instantly.

収録刊行物

  • 日本冷凍空調学会論文集  

    日本冷凍空調学会論文集 14(1), 47-55, 1997-03-31 

    Japan Society of Refrigerating and Air Conditioning Engineers

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各種コード

  • NII論文ID(NAID)
    10002713974
  • NII書誌ID(NCID)
    AA11125910
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13444905
  • NDL 記事登録ID
    4184406
  • NDL 雑誌分類
    ZN14(科学技術--機械工学・工業--熱機関)
  • NDL 請求記号
    Z16-1394
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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