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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Reduction of Refrigerant-induced Noise of the Refrigerator by Modification of the Evaporator Inlet Pipe

증발기 입구 배관의 구조 개선을 통한 냉장고 냉매 소음 저감

  • Published : 2009.10.20
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Abstract

This research is focused on the experimental study of the noise induced by two-phase refrigerant flow in the evaporator. The two-phase flow in the evaporator has various flow patterns. The effects of two-phase flow pattern's characteristics on the noise of the evaporator are investigated experimentally. The experimental data shows that the generated noise is mainly related to the layout of the pipe and the certain two-phase flow patterns such as the churn and slug flow. Based on these results, we removed the unnecessary vertical pipe and changed the pipe diameter of the evaporator - inlet into small one in order to avoid the intermittent flow condition. The noise level of newly-designed inlet-pipe of the evaporator was measured experimentally by refrigerant-supplying equipment and compared with that of conventional one.

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References

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  1. Prediction of Two-phase Flow Patterns and Noise Evaluation for Evaporator Pipe in a Refrigerator vol.21, pp.10, 2011, https://doi.org/10.5050/KSNVE.2011.21.10.916
  2. Active Control of Noise Transmitted through Ventilation Openings of the Machinery Room of Refrigerator vol.26, pp.4, 2016, https://doi.org/10.5050/KSNVE.2016.26.4.475