Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Performance Analysis and Test of a Small-Scale Natural Circulation Vertical Evaporator

소형 자연순환 수직형 증발기 해석 및 성능실험

  • Received : 2011.03.27
  • Accepted : 2011.08.11
  • Published : 2011.09.10
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Abstract

In this study, an effort has been made to analyze the subcooled boiling heat transfer in a natural circulation vertical evaporator. To verify the analysis, a small-scale model was made and tested. The friction correlation by Ueda, void fraction and quality correlation by Saha and Zuber along with the superposition heat transfer model by Rohsenow yielded a satisfactory agreement with the model test data. The analysis was extended to simulate a 1 ton/day concentration system. Comparison with the test results of 1 ton/day prototype revealed that the data were overpredicted by 13%. The capacity of the prototype was 1.2 ton/day with COP of 5.77.

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Acknowledgement

Grant : 패키지형 진공증발 산업폐수 농축순환시스템 개발

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