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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Dehumidifying Performance of Material-Saving Fin in Fin-tube Heat Exchanger

흰-관 열교환기에서 재료절감 흰의 제습특성

  • 강희찬 (군산대학교 기계공학부) ;
  • 김무환 (포항공과대학교 기계공학과)
  • Published : 2001.08.01
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Abstract

This work discusses the pressure droop, heat and mass transfer of the finned-tube heat exchangers having 7 mm tubes and offset strips in dehumidifying applications. It focuses on the fin material saving and the reduction of pressure drop. The experiment was conducted using three times scaled-up models to simulate the performance of the prototype. Eight kinds of fins having different strips and S shape edges were tested. the area density of the strip was a major factor and its shape and the location were secondary factors on the pressure drop, the heat and mass transfer. The reduced-area fin can almost equal the non-reduced fin in the aspect of heat and mass transfer. The strip fins proposed in the present work can considerably reduce both the pressure drop and the fin material for similar thermal load.

Keywords

References

  1. ASHRAE Trans v.87 The Effect of Fin Spacing on the Heat Transfer and Friction Performance of Multi-row, Smooth Plate Fin-and-tube Heat Exchangers Rich,D.G.
  2. ASHRAE Trans v.84 Correlation of Heat, Mass and Momentum Transport Coefficients for Plate-fin-tube Heat Transfer Surfaces with Staggered Tubes McQuiston, F. C.
  3. Int. J. Refrig. v.17 Heat Transfer Characterization of Plate Fin-tube Heat Exchangers Kayansayan, N.
  4. Proceedings of 8th Int. Heat Transfer conference Heat Transfer and Friction Correlations for Plate Finned Tube Heat Exchangers Having Plane Fins Gray,D.L.;Webb,R.L.
  5. ASHRAE Trans v.93 Effect of Fin Pattern on the Air-Side Heat Transfer Coefficient in Plate Finne-Tube Heat Exchangers Beecher,D.T.;Fagan,T.J.
  6. Experimental Thermal and Fluid Science v.14 no.2 Heat Transfer and Friction Characteristics of Typical Wavy Fin-and-tube Heat Exchanger Wang, C. C.;Fu, W. L.;Chang, C. T.
  7. Proceedings of the 11th Int. Heat Transfer Conference v.6 Evaluation of the Wavy Fin Geometry Used in Air-cooled Finned-Tube Heat Exchangers Kang,H.C.;Webb, Ralph. L.
  8. ASHRAE Trans v.96 Air-side Heat Transfer Correlations for Flat and Wavy Plate Fin-and-tube Geometries Webb, R. L.
  9. Trans of the ASME v.119 Heat Transfer and Friction Correlations for Wavy Plate Fin-and-Tube Heat Exchangers Kim,N.H.;Yun,J.H.;Webb,R.L.
  10. Proceedings of the 1983 ASME-JSME Thermal Engineering Conference v.1 Enhanced Fins for Air-cooled Heat Exchangers-Heat Transfer and Friction Factor Correlations Nakayama, W.;Xu, L. P.
  11. National Technical Report v.35 no.6 High-Efficiency Heat Exchanger Hiroaki,K.;Shinichi,I.;Osamu,A.;Osao,K.
  12. ASHRAE Trans v.95 Improved Heat Transfer Performance of Air Coolers by Strip Fins Controlling Air Flow Distribution Hatada, T. E.;Ueda, H.;Oouchi, T.;Shimizu, T.
  13. Proceedings of the 11th Int. Heat Transfer Conference v.6 Performance Comparison Enhanced Fin Geometries Used in the Fin-and-Tube Heat Exchangers Kang,H.C.;Webb, Ralph. L.
  14. Int. J. of Refrig v.22 Effect of Strip Location on the Air-Side Pressure Drop and Heat Transfer in Strip Fin-and-Tube Heat Exchanger Kang,H.C.;Kim,M.H.
  15. Proceedings of the KSME Thermal Engineering Conference Sensible Heat Transfer Characteristics of Material Saving Fin of the Finned-tube Heat Exchanger Kang, H. C.;Kim, M. H.
  16. Korean Journal of KSME v.21 A Large Scale Model Test to Investigate the Thermohydraulic Characteristics in the Air Side of two-Row Heat Exchanger Kang,H.C.;Kim,M.H.
  17. Korean Journal of SAREK v.12 A study on the Thermal Characteristics of Finned-tube Heat Exchanger by Using the Liquid Crystal Technique Kang,H.C.;Kim,M.H.;Kim,M.S.
  18. Proceedings of the SAREK v.Ⅰ Development of an experimental technique for the dehumidifying heat exchanger by using scale up model Kang, H. C.;Ha, S. C.;Kang, S. H.;Kim, M. H.