HFC 134aを用いた冷凍回路のキャピラリチューブ内に生成するスラッジの解析 Analysis of Capillary Tube Sludge in Refrigeration Circuit with HFC 134a

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We conducted a continuous test with a refrigeration test circuit using HFC 134 a,and we made a study of the form and components of the sludge inside the capillary tube comparing different kinds of lubricant from this perspective. A rotary compressor was used for the test, and HAB oil, blended oil and ester oil were employed as the lubricants. <br>The results showed that the capillary sludge consists mainly of a copper oxide which is caused by corrosion in the case of the HAB oil, and mainly a metal soap, a decomposition product and polymeric product of the lubricant, and zeolite in the case of the ester oil. In order to decrease the amount of these sludges, it is necessary, in the former case, to remove the remaining chlorine solvents and other impurities in the constituent parts of the refrigeration test circuit and, in the latter case, to develop a stabler lubricant and zeolite. In the case of the blended oil, we discovered that zeolite and ohter substances are deposited in the capillary tube over the course of time.

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(3), 277-284, 1997-11-01 

    Japan Society of Refrigerating and Air Conditioning Engineers

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  • NII論文ID(NAID)
    10002714191
  • 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
    4353641
  • 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  NDL  J-STAGE 
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