Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on the Reliability of Cooling Water Systems Using R436B

대체냉매 R436B를 적용한 정수기 냉각수 시스템 신뢰성 평가에 관한 연구

  • Received : 2013.02.26
  • Published : 2013.08.10
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Abstract

The alternative refrigerant R436B is applied, to assess the application feasibility for a commercial cooling water system. The characteristic stability was verified by Sealed glass tube test and Autoclave test. R436B is chemically stable with the compressor material. The Oil miscibility test shows the usual compressor oil mixed well with R436B. Through the life acceleration test, the cooling performance is maintained. Though slight changes in oil and capillary tube diameter were found, they were within the permitted range. R436B should be applied to commercial cooling water systems as a simple replacement for the usual refrigerant.

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References

  1. Material safety data sheet, 2012, LEMY Corp.
  2. ANSI/ASHRAE Standard 34-2007, 2007, Designation and Safety Classification of Refrigerants, ASHRAE.
  3. JIS K 2211 Annex A, 2009, Testing method for low temperature precipitation property, JIS.
  4. ANSI/ASHRAE Standard 97-2007, 2007, Sealed glass tube method to test the chemical stability of materials for use within refrigerant systems, ASHRAE.
  5. KS M 0202, 2010, Testing method for colour of chemical products-Part2 : Gardner colour scale, KS.
  6. JIS K 2211 Annex C, 2009, Testing method for chemical stability to refrigerant(autoclave test), JIS.
  7. Reliability sampling plans for mechanical parts, 2004, KIMM.
  8. Handbook of reliability term, 2005, KATS.