Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Experimental Analysis of the Effect of Phase Change at the Entrance of a Capillary Tube by Sub-cooling Control on Refrigerant-induced Noise

과냉도에 따른 모세관 입구단에서의 냉매 상태 변화가 냉장고 냉매 소음에 미치는 영향의 실험적 분석

  • Oh, Young-Hoo (Graduate School of Mechanical Engineering, Pusan National University) ;
  • Kim, Min-Seong (Graduate School of Mechanical Engineering, Pusan National University) ;
  • Han, Hyung-Suk (Naval Sea System Center, Defense Agency for Technology and Quality) ;
  • Kim, Tae-Hoon (Engineering Design Department, LG Electronics) ;
  • Jeong, Weui-Bong (School of Mechanical Engineering, Pusan National University)
  • Received : 2012.07.31
  • Accepted : 2012.10.05
  • Published : 2012.12.20
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Abstract

This study is focused on the experimental analysis of the noise induced by phase change of refrigerant at the entrance of capillary tube. The refrigerant is usually two-phase condition when it flowed into the capillary tube. At the entrance of capillary tube, the phase condition of refrigerant is formed by sub-cool control. If it has sufficient sub-cool temperature, all of the vapor refrigerants turned to liquid, which means there is only liquid. Otherwise, the gas is coexisted. Based on this theory, we experiment on each case by changing sub-cool temperature using refrigerant-supplying equipment. The noise level is measured for each case and compared.

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References

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