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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Numerical Analysis on the Condensation Heat Transfer and Pressure Drop Characteristics of the Flat Tube-Bundle Heat Exchanger

편평관군 열교환기에서의 응축 열전달 및 압력강하 특성해석

  • Park, Byung-Kyu (School of Mechanical and Aerospace Engineering, Seoul Notional University) ;
  • Lee, Joon-Sik (School of Mechanical and Aerospace Engineering, Seoul Notional University)
  • 박병규 (서울대학교 기계항공공학부) ;
  • 이준식 (서울대학교 기계항공공학부)
  • Published : 2005.12.01
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Abstract

A numerical analysis was carried out on the heat and mass transfer, and pressure drop characteristics of the modular tube bundle heat exchanger. The finite volume method with a $k-\varepsilon$ turbulence model was used for the analysis. Due to condensation, the total heat transfer rate is observed about $4\~8\%$ higher than that on dry surfaces. Total heat transfer rate increases with increase in the velocity, temperature and relative humidity of incoming air. It also increases with decreasing the aspect ratio of heat exchanger tube. The inlet velocity of cooling water has little effect on the total heat transfer when the other conditions are fixed.

Keywords

References

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