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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
대한설비공학회 International Journal of Air-Conditioning and Refrigeration Journal Of Air-Conditioning and Refrigeration Vol.4
발행연도
1996.9
수록면
60 - 77 (18page)

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A performance analysis of the refrigeration system using the HFC-134a and the scroll compressor is performed numerically. The refrigeration system mainly consists of various standard components such as heat exchangers, compressors, and expansion devices. The model for heat exchanger performance analysis is based on a tube-by-tube method which is analyzed separately by considering the cross-flow heat transfer with the outdoor air flow and the pressure drop. The system used the scroll-type compressor which has many merits such as high efficiency, low noise and vibration, and small size. Short-tube is included as an expansion device. Vapour and liquid lines are also considered for the performance analysis of refrigeration system.
Using the modelings of various components of the refrigeration system, a performance comparison of CFC-12 and HFC-13a is performed numerically for the various outdoor air temperatures and various values of the short-tube diameter. As seen in the results of this study, the refrigeration system performance decreases as the outdoor air temperature increases, and the optimum short-tube diameter based on COP is 1.37㎜ for this system.

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Abstract

1. Introduction

2. Refrigeration System

3. Numerical Analysis

4. Results and discussion

5. Conclusions

References

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