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Two-dimensional fin efficiency of plate fin-tube heat exchangers under partially and fully wet conditions

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Abstract

This paper presents the two-dimensional analysis for the efficiency of continuous plate fin-tube heat exchangers in staggered and in-lined arrangements under the dry, partially wet, and fully wet conditions for different heat transfer coefficient (h=20 W/m2K to h=80 W/m2K) and air relative humidity over the full range from ϕ=0 % to ϕ=100%. It is shown that the fin efficiencies of the staggered arrangement are higher than those for the in-lined arrangement, and the fully wet fin efficiency is 10–20% lower than that for a dry fin. The conventional 1-D sector method underestimates the fin efficiency up to 4 % as compared to the 2-D analysis.

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References

  1. McQuiston, F C, Parker, J D. Heating, Ventilating and Air Conditioning Analysis and Design. New York: John Wiley, 1994. 604–613

    Google Scholar 

  2. ARI Standard 410-72 Forced-Circulation Air-Cooling and Air-Heating Coils. Air-Conditioning & Refrigeration Institute, 1972

  3. Threlkeld, J L. Thermal Environment Engineering. 2nd Ed. New York: Prentice-Hall, 1970

    Google Scholar 

  4. McQuiston, F C. Fin Efficiency with Combined Heat and Mass Transfer. ASHRAE Transaction, 1975, 71: 350–355

    Google Scholar 

  5. Coney, J E R, Kazeminejad, H, Sheppard, C G W. Dehumidification of air on a Vertical Rectangular Fin: A Numerical Study. In: Proc. Instn. Mech. Engr.. 1989, 203: 141–146

    Google Scholar 

  6. Coney, J E R, Sheppard, C G W, Shafei, E A M. Fin Performance with Dehumidification from Humid Air: A numerical Investigation, International Journal of Heat & Fluid Flow, 1989, 10: 224–231

    Article  Google Scholar 

  7. Kazeminejad, H. Analysis of One-Dimensional Fin Assembly Heat Transfer with Dehumidification. International Journal of Heat & Mass Transfer, 1996, 38: 455–462

    Article  Google Scholar 

  8. Wu, G, Bong, T Y. Overall Efficiency of a Straight Fin with Combined Heat and Mass Transfer. ASHRAE Transactions Part 1, 1995, 100: 367–374

    Google Scholar 

  9. Salah El-Din, M M. Performance Analysis of Partially-Wet Fin Assembly. Applied Thermal Engineering, 1998, 18: 337–349

    Article  Google Scholar 

  10. Hong, K T, Webb, R L. Calculation of Fin Efficiency for Wet and Dry Fins. HVAC & R Research, 1995, 2: 27–41

    Google Scholar 

  11. Wang, C C, Hsieh, Y C, Lin, Y T. Performance of Plate Finned Tube Heat Exchangers under Dehumidifying Conditions. ASME Journal of Heat Transfer, 1997, 119: 109–117

    Google Scholar 

  12. Rosario, L, Rahman, M M. Analysis of Heat Transfer in a Partially Wet Radial Fin Assembly During Dehumidification. International Journal of Heat and Fluid Flow, 1999, 20: 642–648

    Article  Google Scholar 

  13. Chen, L T. Two-Dimensional Fin Efficiency with Combined Heat and Mass Transfer between Water-Wetted Fin Surface and Moving Moist Air Stream. International Journal of Heat & Fluid Flow, 1991, 12: 71–76

    Article  Google Scholar 

  14. Liang, S Y, Wong, T N, Nathan, M M. Comparison of One-Dimensional and Two-Dimension Models for Wet Surface Fin Efficiency of a Plate-Fin-Tube Heat Exchanger. Applied Thermal Engineering, 2000, 20: 941–962

    Article  Google Scholar 

  15. Sparrow, E M, Lin, S H, Heat-Transfer Characteristics of Polygonal and Plate Fins. International Journal of Heat and Mass Transfer, 1964, 7: 951–953

    Article  MathSciNet  Google Scholar 

  16. Le Feuvre, R F. Laminar and Turbulent Forced Convection Processes Through in-line Tube Banks, HTS/74/5. Mechanical Engineering Department, Imperial College, London, 1973

    Google Scholar 

  17. Wung, T S, Chen, C J. Finite Analytic Solution of Convective Heat Transfer for Tube Arrays in Crossflow — I. Flow Field Analysis. ASME Journal of Heat Transfer, 1989, 111: 633–640

    Article  Google Scholar 

  18. Wung, T S, Chen, C J. Finite Analytic Solution of Convective Heat Transfer for Tube Arrays in Crossflow — II. Heat Transfer Analysis. ASME Journal of Heat Transfer, 1989, 111: 641–648

    Google Scholar 

  19. Chen, H T, Liou, J T. Optimum Dimensions of the Continuous Plate Fin for Various Tube Arrays. Numerical Heat Transfer, Part A, 1998, 34: 151–168

    Google Scholar 

  20. Lin, C N, Jang, J Y. A Two-Dimensional Fin Efficiency Analysis of Combined Heat and Mass Transfer in Elliptic Fins. International Journal of Heat and Mass Transfer, 2002, 45: 3839–3847

    MATH  Google Scholar 

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Authors and Affiliations

  1. Department of Mechanical Engineering, National Cheng-Kung University, 70101, Tainan, Taiwan, China

    Jiin-Yuh Jang & Chien-Nan Lin

Authors
  1. Jiin-Yuh Jang
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  2. Chien-Nan Lin
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Jang, JY., Lin, CN. Two-dimensional fin efficiency of plate fin-tube heat exchangers under partially and fully wet conditions. J. of Therm. Sci. 11, 249–254 (2002). https://doi.org/10.1007/s11630-002-0062-9

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  • DOI: https://doi.org/10.1007/s11630-002-0062-9

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