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진동 노즐이 냉매 압축기 EER에 미치는 영향에 관한 수치해석

Numerical Analysis of Effect of Vibrating Nozzles on the EER of a Refrigerant Compressor

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주제분류기계공학

초록

The compressor of a refrigerator accounts for approximately 60-80% of the total energy consumption necessary for the refrigeration cycle. This study investigates the implementation of a pre-compression system featuring a vibrating nozzle, with the goal of enhancing the efficiency of a linear compressor. By utilizing this pre-compression system, the cooling capacity and efficiency of the compressor are expected to improve. The numerical results show that the pre-compression system leads to an improvement of approximately 1.7% in cooling capacity compared to the baseline model. Furthermore, an increase of approximately 0.1 in EER was observed, confirming the feasibility of incorporating a pre-compression system with a vibrating nozzle.

Abstract

The compressor of a refrigerator accounts for approximately 60-80% of the total energy consumption necessary for the refrigeration cycle. This study investigates the implementation of a pre-compression system featuring a vibrating nozzle, with the goal of enhancing the efficiency of a linear compressor. By utilizing this pre-compression system, the cooling capacity and efficiency of the compressor are expected to improve. The numerical results show that the pre-compression system leads to an improvement of approximately 1.7% in cooling capacity compared to the baseline model. Furthermore, an increase of approximately 0.1 in EER was observed, confirming the feasibility of incorporating a pre-compression system with a vibrating nozzle.

참고문헌 (13)

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  2. H. Lee, "The Innovative Green Technology for Refrigerators Development of Innovative Linear Compressor", Proceedings International Compressor Engineering Conference (2008), Purdue University
  3. A. H. P. Antunes, "Experimental Investigation on the Performance and Global Environmental Impact of a Refrigeration System Retrofitted with Alternative Refrigerants", International Journal of Refrigeration, 70, pp.119~127 (2016)
  4. 김봉석, "스크롤 공기 압축기용 고체윤활 코팅 특성에 관한 연구", 한국기계기술학회지, 16(5), pp.1815~1821 (2014), 한국기계기술학회[DOI]
  5. J. F. T. MacLaren, "A Review of Simple Mathematical Models of Valves in Reciprocating Compressors", Proceedings International Compressor Engineering Conference, pp.180~187 (1972), Purdue University
  6. R. Prakash, "Mathematical Modeling and Simulation of Refrigerating Compressors", Proceedings International Compressor Engineering Conference, pp.274~285 (1974), Purdue University
  7. P. J. Singh, "A Digital Reciprocating Compressor Simulation Program Including Suction and Discharge Piping", Proceedings International Compressor Engineering Conference, pp.129~138 (1984), Purdue University
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  9. J. K. Kim, "Performance Characteristics of a Capacity-Modulated Linear Compressor for Home Refrigerators", International Journal of Refrigeration, 36, pp.776~785 (2013)
  10. J. K. Kim, "An Experimental and Numerical Study on an Inherent Capacity Modulated Linear Compressor for Home Refrigerators", International Journal of Refrigeration, 34, pp.1415~1423 (2011)
  11. I. S. Hwang, "CFD analysis of transient flows in a linear compressor using a 1D-CFD coupled model", International Journal of Refrigeration, 91, pp.20~27 (2018)
  12. 박상준, "A study on cycle performance variation of a linear compressor considering valve behavior", Journal of Mechanical Science and Technology, 31(9), pp.4481~4488 (2017), 대한기계학회
  13. C. R. Bradshaw, "A Comprehensive Model of a Miniature-Scale Linear Compressor for Electronics Cooling", International Journal of Refrigeration, 34, pp.63~73 (2011)

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