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A study on development of lubricants for an alternative refrigerant

Research Project

Project/Area Number 09650166
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 設計工学・機械要素・トライボロジー
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

GONDO Seigo  Science Engineering Faculty of Engineering, Kyushu University, Assistant, 大学院・工学研究科, 助手 (50037975)

Co-Investigator(Kenkyū-buntansha) ONO Bunji  Science Engineering Faculty of Engineering, Kyushu University, Assistant, 大学院・工学研究科, 助手 (60224276)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1999: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1998: ¥700,000 (Direct Cost: ¥700,000)
KeywordsFriction and Wear / Tribology / Oil film thickness / Reaction film / Adsorption film / Alternative refrigerant / Solidified film / 境界潤滑膜 / 粘度-圧力係数 / フロンの溶解率 / 粘度変化 / 摩擦,摩耗 / 粘度-圧力指数 / 摩擦、摩耗
Research Abstract

Using R134 as a refrigerant and polyalkylene glycol, and polyolester, polyvinylether, the fiction and wear characteristics of Al-Si alloys, which appear to be promising due to their low density and high strength-to-weight ratio, sliding against steels in R134a with different additives. The results obtained are as follows.
1. The solubility characteristics of R134a in oils
It was confirmed that the dissolution of R134a into oils brought about the reduction of their viscosity leading to the decrease in oil film thickness or to the oil film rupture.
The degree of reduction in viscosity was affected not only by the concentration of R134a in oils but also by the mean molecular weight of oils.
2. The effect of R134a dissolution on oil film formation
Oil film thickness was measured by means of an optical interferometry technique with a ball/plate reciprocating apparatus. As the solubility of R134a in oils increased, the oil film thickness became thinner and the amount of Al-Si alloys increased.
3. Wear characteristics
The friction and wear performance was examined with steel/steel and steel/Al-Si alloys pairs in R134a using a reciprocating sliding contact apparatus. With steel/steel pairs, the friction and wear characteristics were significantly affected by absorbed and/or reacted films formed on the rubbing surfaces, and the solidified films on oils. On the other hand, for steel/Al-Si alloys pairs, the wear characteristics of Al-Si alloys was mainly controlled by the transfer property of alloys to the mating steel surface, which was promoted as the polarity of oils became high leading to an increase in the wear.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • Research Products

    (20 results)

All Other

All Publications (20 results)

  • [Publications] 山本雄二: "代替フロン134a用潤滑油の摩擦摩耗特性"日本機械学会論文集,C編. 63巻612号. 2839-2844 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 山本雄二: "代替冷媒用潤滑油ポニビニルエーテル(PVE)の摩擦摩耗特性"日本機械学会論文集,C編. 64巻624号. 3179-3184 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] YUJI YAMAMOTO: "Friction and Wear Characteristics of Lubricants for Alternative Refrigerant HFC134a"JSME International J., Series C.. Vol.41 No.2. 278-284 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 金重火玄: "代替冷媒用潤滑油の摩擦摩耗特性に及ぼす添加剤の影響"日本機械学会論文集,C編. 65巻631号. 354-350 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] YUJI YAMAMOTO: "Lubrication Regime as a Lubricant for an Alternative Refrigerant Friction and Wear Performance of Polyvinylether (PVE) in Boundary"Proc. of the 1998 Intern. Refrigeration Conf. at Purdue.. 367-372 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Yamamoto, S. Gondo: "Friction and Wear Characteristics of Lubricants for an Alternative Refrigerant HFC134a"JSME InternJ. Ser. C.. 41. 2. 278-284 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Yamamoto, J. Kim, S. Gondo: "Friction and Wear Characteristics of Polyvinylether (PVE) as a Lubricant for Alternative Refrigerant"Trans. JSME Ser. C.. 64. 624. 3179-3184 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Yamamoto, S. Gondo, J. Kim,: "Friction and Wear Performance of Polyvinylether (PVE) in Boundary Lubrication Regime as a Lubricant for an Alternative Refrigerant"Proc. of the 1998 Intern, Refrigeration Conf, at Purdue. 367-372 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] J. Sugimura, J. Kim, S. Gondo, Y. Yamamoto: "Solidified films and Absorbed films in Concentrated contacts"Porc. of 25th Leeds-Lyon Sympo, on Tribology. 827-838 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] J. Kim, Y. Yamamoto, S. Gondo: "The Effect of Additives on Friction and Wear Characteristics of Lubricants for Alternative Refrigerant"Trans. JSME Ser. C.. 65. 631. 1201-1206 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 山本雄二: "代替フロン134a用潤滑油の摩擦磨耗特性"日本機械学会論文集,C編. 63卷612号. 2839-2844 (1997)

    • Related Report
      1999 Annual Research Report
  • [Publications] 山本雄二: "代替冷媒用潤滑油ポニビニルエーテル(PVE)の摩擦磨耗特性"日本機械学会論文集,C編. 64卷624号. 3179-3184 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] YUJI YAMAMOTO: "Friction and Wear Characteristics of Lubricants for Alternative Refrigerant HFC134a"JSME International J.,Series C.. Vol.41No.2. 278-284 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] YUJI YAMAMOTO: "Friction and Wear Performance of Polyvinylether(PVE) in Boundary Lubrication Regime as a Lubricant for an Alternative Refrigerant"Proc.of the 1998 Intern.Refrigeration Conf. at Purdue.. 367-372 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] 金重火玄: "代替冷媒用潤滑油の摩擦磨耗特性に及ぼす添加剤の影響"日本機械学会論文集,C編. 65卷631号. 354-350 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 山本雄二: "代替フロン134a用潤滑油の摩擦摩耗特性" 日本機械学会論文集,C編. 63巻/612号. 2839-2844 (1997)

    • Related Report
      1998 Annual Research Report
  • [Publications] 山本雄二: "代替冷媒用潤滑油ポニビニルエーテル(PVE)の摩擦摩耗特性" 日本機械学会論文集,C編. 63巻/624号. 3179-3184 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] "Friction and Wear Characteristics of Lubricants for Alternative Refrigerant HFC134a" JSME International J.,Series C.Vol.41/No.2. 278-284 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] YUJI YAMAMOTO: "Friction and Wear Performance of Polyvinylether (PVE) in Boundary Lubrication Regime as a Lubricant for an Alternative Refrigerant" Proc.of the 1998 Intern.Refrigeration Conf,at Purdue.367-382 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 山本雄二: "代替フロンHFC134a用潤滑油の摩擦摩耗特性" 日本機械学会論文集,C編. 63巻・612号. 2839-2844 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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