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A Study of Failure Examples for Refrigerant Gas Leakage in Automotive Air Conditioner System

자동차 에어컨 냉매 가스 누설에 대한 고장사례 고찰

  • Lee, Il Kwon (Department of Automotive Engineering, Daelim University College) ;
  • Kook, Chang Ho (Department of Automotive Engineering, Daelim University College) ;
  • Moon, Hak Hoon (Department of Automotive Engineering, Osan University) ;
  • You, Chang Bae (Department of Automotive Engineering, Shin Sung University)
  • Received : 2016.03.17
  • Accepted : 2016.04.28
  • Published : 2016.04.30

Abstract

This paper is to analyze and study the failure examples of refrigerant gas in automotive air conditioner. The first example, the air conditioner compressor continually operated that the refrigerant was leaked in air conditioner system. By lubrication shortage, the piston was partially sticked on cylinder of air conditioner compressor inner part. This was caused the phenomenon of engine operation trouble by load increasing with engine rpm variation during engine running. The second example, it sought the fact that the air conditioner refrigerant gas was leaked from air conditioner compressor to condenser high pressure pipe toward rear air conditioner checking with the lines of air conditioner. The third example, the refrigerant gas of air conditioner found that was leaked imperceptible from condenser inner by crack that was generated on the fins of air conditioner condenser. Therefore, the air conditioner system that maintain the air conditioner by decreasing the in-car temperature must meticulously manage to not leak the air conditioner refrigerant gas.

이 논문의 목적은 자동차 에어컨 가스 누설에 관련된 고장사례를 분석하고 고찰한 것이다. 첫 번째 사례는 냉매가 누설된 상태에서 에어컨 컴프레서가 계속 작동되었다. 이로 인해 에어컨 컴프레서 내부의 피스톤이 윤활부족으로 인해 피스톤이 부분적으로 에어컨 컴프레서 내부의 실린더에 소착되는 현상이 발생하였다. 이것이 엔진작동 중 부하를 증대시켜 엔진의 회전수 변동과 함께 엔진의 작동이 정지되는 현상이 발생된 것으로 확인되었다. 두 번째 사례는 에어컨 라인과 관련 시스템을 확인한 결과 에어컨 컴프레서에서 뒤쪽으로 가는 컨덴서 고압파이프에서 미세한 균열에 의해 에어컨 냉매 가스가 누설되는 것을 확인하였다. 세 번째 사례는 에어컨 컨덴서 핀 부에서 육안으로 확인하기 어려운 미세한 크랙에 의해 컨덴서 내부 안쪽에서 에어컨 가스가 미세하게 누설되는 것을 확인하였다. 따라서, 에어컨 시스템은 에어컨 냉매가스에 의해 자동차의 실내의 온도를 낮춰 공기조화를 하는 시스템이므로 최적의 상태를 유지할 수 있도록 철저한 관리를 하도록 하여야 한다.

Keywords

References

  1. Joseph R. Akerman, " Automotive Air Conditioning Systems with Absorption Refrigeration", SAE paper 710037
  2. David J. Bateman," Performance Comparison of HFC-134a and CFC-12 in an Automotive Air Conditioning System", SAE paper 890305
  3. Akio Yamada, Yasuhisa Sonoda, Yoshie Arakawa," Development of an Air Conditioning System Using the HFC-134a ", SAE paper 920216
  4. M. S. Bhatti," Global Warming Impact of Automotive Air Conditioning System ", SAE paper 982929
  5. M. S. Bhatti," Ehnancement of R-134a Automotive Air Conditioning System", SAE paper 1999-01-0870
  6. Sadek Rahman, France Ragazzi, Richard Sun, Pritam Bathla," Modeling of an Automotive Air Conditioning System and Validation with Experimental Data", SAE paper 2003-01-0735
  7. Saergio M. Hanriot, Bruno Teixeira Vieira," Analysis of performance of the refrigeration Cycle of an Automotive Air Conditioning", SAE paper 2011-36-0098
  8. Cristian Ristiti, Stephanis Stocker, Marcello Canova," A Rule-Based Control for Fuel-Efficient Automotive Air Conditioning System", SAE paper 2015-01-0366
  9. Hoekyeong Seo, Sewook Song, Yangin Hwang, Hyunchul Ha, " Numerical Study on the HCFC-123 Leak in Turbo Chiller by Using CFD", KIGAS, 18(5), 85-90, (2014)
  10. The Korean Society of Automotive Engineering, " Automotive Technology Handbooks - Design Part ", (1996)
  11. Maintenance manual of Hyundai Motors, (2015)
  12. Maintenance manual of Kia Motors, (2015)
  13. Hyundai Motor Company," Automotive Service Training Manual - Electric Part, (2002)

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