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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국박용기관학회지 제29권 제1호
발행연도
2005.1
수록면
49 - 59 (11page)

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The evaporation heat transfer experiments are conducted with the shell and plate heat exchanger (S&PHE) without oil in the refrigerant loop using R-410A An experimental refrigerant loop has been established to measure the evaporation heat transfer coefficient h₁ of R-410A in a vertical S&PHE Two vertical counter flow channels were formed m the S&PHE by three plates having a corrugated trapezord shape of a 450 chevron angle Up flow of the boiling R-410A in one channel receives heat from the hot down flow of water in the other channel The effects of the refrigerant mass flux, average heat flux, refrigerant saturation temperature and vapor quality are explored in detail Similar to the case of a plate heat exchanger, even at a very low Reynolds number, the flow m the S&PHE remains turbulent The present data shows that the evaporation heat transfer coefficients of R-410A increased with the vapor quality The results indicate a rise in the refrigerant mass flux caused an increase in the h, Raising the imposed wall heat flux is found to slightly Improve h₁ while h, is found to be lower at a higher refrigerant saturation temperature Based on the present data, empirical correlation of the evaporation heat transfer coefficient is proposed

목차

Abstract

1. Introduction

2. Experimental apparatus and method

3. Data reduction

4. Results and discussion

5. Conclusion

Acknowledgment

References

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