대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제29권2호
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  • Pages.271-278
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  • 2005
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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프로판/이소부탄(R-290/R-600a) 혼합 냉매를 적용한 가정용 소형 멀티 냉동시스템의 성능특성에 관한 연구

A Study on Performance Characteristics of Propane/Isobutane Refrigerant Mixtures in a Domestic Small Multi-Refrigeration System

  • 발행 : 2005.02.01
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초록

In this paper, the performance of Kim-chi refrigerator with three evaporator and one compressor was investigated in employing $55\%$ propane and $45\%$ isobutane (R290/R600a) refrigerant mixture as an alternative refrigerant of R134a. The drop-in test was performed by varying both refrigerant charge and capillary tube length in order to find both the performance and reliability of a small multi-refrigeration system. Results show that the power consumption is decreased by about $15\%$ and COP is increased by about $10\%$, respectively as compared to the baseline system using R-134a. In addition, the propane/isobutane refrigerant mixture system took advantage of the minimization of modification and redesigning of system components because thermodynamic properties such as saturation pressure, temperature, normal boiling point(NBP) characteristics are similar to those of R134a. The reduction of sales cost is caused by the decrease of refrigerant cost per unit mass and refrigerant charge amount necessary for the refrigeration system.

키워드

참고문헌

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피인용 문헌

  1. Aerodynamic Design and Numerical Study of a Propane-Refrigerant Centrifugal Compressor for LNG Plant vol.35, pp.8, 2011, https://doi.org/10.3795/KSME-B.2011.35.8.781