HFC-134a/ポリオールエステル油の冷凍回路におけるスラッジ生成に関する考察 Consideration of Sludge Formation in HFC-134a/Polyol Ester oil Refrigeration System

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A refrigeration test employing HFC-134a and polyol ester oil was carried out in order to make clear the causes of the sludge formation in the capillary tube. Compressors used were two types: a hermetic reciprocating compressor and a rotary compressor. Installed dryer contained desiccant of the compound zeolite type.<br>The results showed that the amount of capillary sludge increased as the compressor temperature rose. The capillary sludge was determined to consist of desiccant and metal dust for the reciprocating compressor, and of tar-like substance for the rotary compressor. Thermal stability test which was used to check the degree of deterioration of the ester oil, suggested that the presence of desiccant and high compressor temperature might produce tar-like substance by the break down and polymerization of the ester oil. In addition, it was confirmed that factors affecting the sludge formation were the dirtiness of the refrigeration circuit for the reciprocating compressor, and the presence of desiccant, for the rotary compressor.

収録刊行物

  • 日本冷凍協会論文集

    日本冷凍協会論文集 13(2), 167-173, 1996-07-31

    公益社団法人 日本冷凍空調学会

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各種コード

  • NII論文ID(NAID)
    10002713643
  • NII書誌ID(NCID)
    AN10035654
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    09100040
  • NDL 記事登録ID
    4020803
  • 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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