Study on the Heat Transfer Performance of the Annular Fin under Condensing Conditions
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Study on the Heat Transfer Performance of the Annular Fin under Condensing Conditions

Authors: Abdenour Bourabaa, Malika Fekih, Mohamed Saighi

Abstract:

A numerical investigation of the fin efficiency and temperature distribution of an annular fin under dehumidification has been presented in this paper. The non-homogeneous second order differential equation that describes the temperature distribution from the fin base to the fin tip has been solved using the central finite difference method. The effects of variations in parameters including relative humidity, air temperature, air face velocity on temperature distribution and fin efficiency are investigated and compared with those under fully dry fin conditions. Also, the effect of fin pitch on the dimensionless temperature has been studied.

Keywords: Annular fin, Dehumidification, Fin efficiency, Heat and mass transfer, Wet fin.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1089559

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References:

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[1] A. Brown, "Optimum dimension of uniform annular fins,” International Journal of Heat and Mass Transfer, Vol. 8, pp. 655-662, 1965.
[2] A. Ullmann and H. Kalman, "Efficiency and optimized dimensions of different cross-section shapes,” International Journal of Heat and Mass Transfer, Vol. 32, No. 6, pp. 1105-1110, 1989.
[3] J. E. R. Coney, C. G.W. Sheppard, and E. A. M. El-Shafei, "Fin performance with condensation from humid air: a numerical investigation,” International Journal of Heat and Fluid Flow. vol. 10, No, 3, pp. 224–231, 1989.
[4] H. Kazeminejad, M. A. Yaghoubi and F. Bahri, "Conjugate forced convection-conduction analysis of the performance of cooling and dehumidifying vertical rectangular fin,” International Journal of Heat and Mass Transfer, vol. 36, No. 14, pp. 3625-3631, 1993.
[5] D. Besednjak and A. Poredos, "Efficiency of cooled extended surfaces,” International Journal of Refrigeration, vol. 21, No. 5, pp. 372-380, 1998.
[6] C. N. Lin and J. Y. Jang, "A two dimensional fin efficiency analysis of combined heat and mass transfer in elliptic fins,” International Journal of Heat and Mass Transfer, vol. 45, pp. 3839-3847, 2002.
[7] H. T. Chen and J. C. Chou, "Investigation of natural-convection heat transfer coefficient on a vertical square fin of finned-tube heat exchangers,” International Journal of Heat and Mass Transfer, vol. 49, pp. 3034-3044, 2006.
[8] B. Kundu, D. Barman and S. Debnath, "An analytical approach for predicting fin performance of triangular fins subject to simultaneous heat and mass transfer,” International Journal of Refrigeration, vol. 31, pp. 1113-1120, 2008.
[9] B. Kundu, "Approximate analytic solution for performances of wet fins with a polynomial relationship between humidity ratio and temperature,” International Journal of Thermal Sciences, vol.48, pp. 2108-2118, 2009.
[10] M. H. Sharqawy and S. M. Zubair, "Efficiency and optimization of straight fins with combined heat and mass transfer – An analytical solution,” Applied Thermal Engineering, vol. 28, pp. 2279-2288, 2008.
[11] H. T. Chen and J. C. Chou, "Investigation of natural-convection heat transfer coefficient on a vertical square fin of finned-tube heat exchangers,” International Journal of Heat and Mass Transfer, vol.49, pp. 3034-3044, 2006.
[12] H. T. Chen and W. L. Hsu, "Estimation of heat-transfer characteristics on a vertical annular circular fin of finned-tube heat exchangers in forced convection,” International Journal of Heat and Mass Transfer, vol. 51, pp. 1920-1932, 2008.
[13] H. T. Chen and H. C. Wang, "Estimation of heat-transfer characteristics on a fin under wet conditions,” International Journal of Heat and Mass Transfer, vol. 51, pp. 2123-2138, 2008.
[14] B. Sunden, "The effect of Prandtl number on conjugate heat transfer from rectangular fins,” Int. Comm. Heat Mass Transfer, vol. 12, pp. 225-232, 1985.
[15] L. T. Chen, "Two-dimensional fin efficiency with combined heat and mass transfer between water-wetted fin surface and moving moist airstream,” International Journal of Heat and Fluid Flow. vol. 12, No,1, pp. 224–231, 1991.
[16] A. H. Elmahdy, and R. C. Biggs, "Efficiency of extended surfaces with simultaneous heat and mass transfer,” ASHRAE Trans. vol. 89, Part 1A, pp. 135–143, 1983.
[17] S. Y. Liang, M. Liu, T. N. Wang and G. K. Nathan, "Analytical study of evaporator coil in humid environment,” Applied Thermal Engineering. vol. 19, pp. 1129–1145, 1999.
[18] M. H. Sharqawy, and S. M. Zubair, "Efficiency and optimization of an annular fin with combined heat and mass transfer-An analytical solution,” International Journal of Refrigeration. vol. 30, pp. 751–757, 2007.
[19] P. Naphon, "Study on the heat transfer characteristics of the annular fin under dry-surface, partially wet-surface, and fully wet-surface conditions,” International Communication in Heat and Mass Transfer. vol. 33, pp. 112–121, 2006.
[20] S. Y. Liang, T. N. Wong and G. K. Nathan, "Comparison of one-dimensional and two-dimensional models for wet-surface fin efficiency of a plate-fin-tube heat exchanger,” Applied Thermal Engineering. vol. 20, pp. 941–962, 2000.
[21] H. Kazeminejad, "Analysis of one-dimensional fin assembly heat transfer with dehumidification,” International Journal of Heat and Mass Transfer. vol. 38, pp. 455–462, 1995.
[22] M. M. Salah El-Din, "Performance analysis of partially-wet fin assembly,” Applied Thermal Engineering. vol. 18, No. 5, pp. 337–349, 1998.
[23] L. Rosario and M. M. Rahman, "Analysis of heat transfer in a partially wet radial fin assembly during dehumidification,” International Journal of Heat and Fluid Flow. vol. 20, pp. 642–648, 1999.
[24] A. Bourabaa, M. Saighi, M. Fekih and B. Belal, "Study on the heat transfer of the rectangular fin with dehumidification: Temperature distribution and fin efficiency,” International Review of Mechanical Engineering (I.RE.M.E), Vol. 7, No. 5, pp. 857-863, 2013.