Browse > Article
http://dx.doi.org/10.5762/KAIS.2015.16.9.5778

An Experimental Study on Air-Side Performance of Fin-and-Tube Heat Exchangers Having Compound Enhanced Fins Under Wet Condition  

Kim, Nae-Hyun (Division of Mechanical System Engineering Incheon National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.9, 2015 , pp. 5778-5788 More about this Journal
Abstract
In this study, wet surface heat transfer and friction characteristics of compound enhanced fin-and-tube heat exchangers were experimentally investigated. Louver-finned heat exchangers were also tested for comparison purpose. The effect of fin pitch on j and f factor was negligible. Both j and f factor decreased as number of tube row increased. Compound enhanced fin samples yielded higher j and f factors than louver fin samples. For one row, j and f factors of compound enhanced fin samples were 11% and 43% higher than those of louver fin samples. For two row, those were 8% and 50%, and for three row, those were 17% and 53%. Heat transfer capacities at the same pressure drop of the compound enhanced fin samples were 2.0% for one row, 3.1% for two row and 8.4% for three row larger than those of louver fin samples, Data were compared with predictions of existing louver fin correlations.
Keywords
Compound enhanced fin; Heat transfer coefficient; Pressure drop; Wet surface;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 R. L. Webb and N.-H. Kim, Principles of Enhanced Heat Transfer. 2nd ed., Taylor and Francis Pub. 2005.
2 C.-C. Wang, "On the airside performance of fin-and-tube heat exchangers," in Heat Transfer Enhancement of Heat Exchangers, Eds., S. Kakac, A.E. Bergles, F. Mayinger, H. Yuncu, Kluwer Academic Press, pp. 141-162, 1999.
3 A. M. Jacobi and R. K. Shah, "Air-side flow and heat transfer in compact heat exchangers:A discussion of enhancement mechanism," Heat Transfer Engineering, Vol. 19, No. 4, pp.29-41, 1998. DOI: http://dx.doi.org/10.1080/01457639808939934   DOI
4 F. E. M. Saboya, and E. M. Sparrow, "Local and average heat transfer coefficients for one-row plate fin and tube heat exchanger configurations," J. Heat Transfer, Vol. 96, pp. 265-272, 1974. DOI: http://dx.doi.org/10.1115/1.3450189   DOI
5 L. Goldstein and E. M. Sparrow, "Experiments on the transfer characteristics of a corrugated fin and tube heat exchanger configuration," Journal of Heat Transfer, Vol. 98, pp. 26-34, 1976. DOI: http://dx.doi.org/10.1115/1.3450464   DOI
6 M. M. Ali and S. Ramadhyani, "Experiments on convective heat transfer in corrugated channels," Experimental Heat Transfer, Vol. 5, pp. 175-193, 1992. DOI: http://dx.doi.org/10.1080/08916159208946440   DOI
7 F. C. McQuiston, "Heat, mass and momentum transfer data for five plate-fin-tube surfaces", ASHRAE Trans., Vol. 84, No. 1, pp. 266-293, 1978.
8 F. C. McQuiston, "Correlation of heat, mass and momentum transport coefficients for plate-fin-tube heat transfer surfaces with staggered tubes", ASHRAE Trans., Vol. 84, No. 1, pp. 294-309, 1978.
9 C.-C. Wang, Y.-C. Hsieh and Y.-T. Lin, "Performance of plate finned tube heat exchangers under dehumidifying conditions", J. Heat Transfer, Vol. 119, pp. 109-117, 1997. DOI: http://dx.doi.org/10.1115/1.2824075   DOI
10 Y.-T. Lin, Y.-M. Hwang and C.-C. Wang, "Performance of the herringbone wavy fin under dehumidifying conditions", Int. J. Heat Mass Trans., Vol. 45, pp. 5035-5044, 2002. DOI: http://dx.doi.org/10.1016/S0017-9310(02)00193-X   DOI
11 C.-C. Wang and J.-S. Liaw, "Airside performance of herringbone wavy fin-and-tube heat exchangers under dehumidifying condition - data with larger diameter tube", Vol. 55, pp. 3054-3060, 2012.   DOI
12 T. Kuvannarat, C.-C. Wang and S. Wongwises, "Effect of fin thickness on the airside performance of wavy fin-and-tube heat exchangers under dehumidifying conditions", Int. J. Heat Mass Trans., Vol. 49, pp. 2587-2596, 2006. DOI: http://dx.doi.org/10.1016/j.ijheatmasstransfer.2006.01.020   DOI
13 C.-C. Wang and C.-T. Chang, "Heat and mass transfer for plate fin-and-tube heat exchangers, with and without hydrophilic coating", Int. J. Heat Mass Trans., Vol. 41, pp. 3109-3120, 2006. DOI: http://dx.doi.org/10.1016/S0017-9310(98)00060-X   DOI
14 X. Ma, G. Ding, Y. Zhang and K. Wang, "Airside heat transfer and friction characteristics for enhanced fin-and-tube heat exchanger with hydrophilic coating under wet conditions", Int. J. Ref., Vol. 30, pp. 1153-1167, 2007. DOI: http://dx.doi.org/10.1016/j.ijrefrig.2007.03.001   DOI
15 C.-C. Wang, Y.-J. Du and C.-J. Chang, "Airside performance of slit fin-and-tube heat exchangers in wet conditions", Proc. 34th National Heat Transfer Conf., NHTC'00-12092, 2000.
16 C.-C. Wang, W.-S. Lee, W.-J. Shen and Y.-J. Chang, "Parametric study of the airside performance of slit fin-and-tube heat exchangers in wet conditions", IMechE, Vol. 215(C), pp. 1111-1121, 2001.
17 C.-C. Wang, W.-S. Lee, W.-J. Sheu and Y.-J. Chang, "A comparison of the airside performance of the fin-and-tube heat exchangers in wet conditions; with and without hydrophilic coating", Applied Thermal Eng., Vol. 22, pp. 267-278, 2002. DOI: http://dx.doi.org/10.1016/S1359-4311(01)00090-4   DOI
18 R. Yun, Y. Kim and Y. Kim, "Airside heat transfer characteristics of plate finned tube heat exchangers with slit fin configuration under wet conditions", Applied Thermal Eng., Vol, 29, pp. 3014-3020, 2009. DOI: http://dx.doi.org/10.1016/j.applthermaleng.2009.03.017   DOI
19 C.-C. Wang, Y.-T. Lin and C.-J. Lee, "Heat and momentum transfer for compact louvered fin-and-tube heat exchangers in wet condition", Int. J. Heat Mass Transfer, Vol. 43, pp. 3443-3452, 2000. DOI: http://dx.doi.org/10.1016/S0017-9310(99)00240-9   DOI
20 K. Hong and R. L. Webb, "Performance of dehumidifying heat exchangers with and without wetting coating", J. Heat Transfer, Vol. 121, pp. 1018-1026, 1999. DOI: http://dx.doi.org/10.1115/1.2826052   DOI
21 ASHRAE Standard 41.1, "Standard method for temperature measurement", ASHRAE, 1986.
22 H. Huisseune, C. T'Joen, P. De Jaeger, B. Ameel and M. De Paepe, "Performance enhancement of a louvered fin heat exchanger by using delta winglet vortex generators", Int. J. Heat Mass Transfer, Vol. 56, pp. 475-487, 2013. DOI: http://dx.doi.org/10.1016/j.ijheatmasstransfer.2012.09.004   DOI
23 L. Tian, Y. He, Y. Tao and W. Tao, "A Comparative study on the airside performance of wavy fin-and-tube heat exchanger with punched delta winglets in staggered and in-line arrangements", Int. J. Thermal Science, Vol 48, pp. 1765-1776, 2009. DOI: http://dx.doi.org/10.1016/j.ijthermalsci.2009.02.007   DOI
24 N.-H. Kim, "An experimental study on air-side performance of fin-and-tube heat exchangers having compound enhanced fins", J. Korean Academia-Industrial Cooperation Society, submitted, 2015. DOI: http://dx.doi.org/10.5762/KAIS.2015.16.7.4364
25 ASHRAE Standard 41.2, "Standard method for laboratory air-flow measurement", ASHRAE, 1987.
26 ASHRAE Standard 41.5, "Standard measurement guide, engineering analysis of experimental data", ASHRAE, 1975.
27 ESDU 98005, "Design and performance evaluation of heat exchangers: the effectiveness and NTU method", Engineering and Sciences Data Unit 98005 with Amendment A, London ESDU International plc.,pp. 122-129, 1998.
28 B-.B. Park, S.-M. You, B. Yoon and K.-C. Yoo, "Experimental study of heat transfer and pressure drop characteristics for flow of water inside circular smooth and micro-fin tubes," Korean J. Air Conditioning Refrigeration, Vol. 9, No. 4, pp. 454-461, 1997.
29 T. E. Schmidt, "Heat transfer calculations for extended surfaces, J. of ASRE, Refrigeration Engineering, Vol. 4, pp. 351-357, 1949.
30 C.-H. Min, J.-P. Cho, W.-K. Oh and N.-H. Kim, "Heat transfer and pressure drop characteristics of heat exchangers having plain fins under dry and wet conditions", Korean Journal of Air-Conditioning and Refrigeration, Vol. 16, No. 3, pp. 218-229, 2004.
31 K. Torikoshi, G.-N. Xi, Y. Nakazawa and H. Asano, "Flow and heat transfer performance of a plate fin and tube heat exchanger (first report: effect of fin pitch)", Proceedings of the 10th Int. Heat Transfer Conf., Vol. 4, pp. 411-416, 1994.