Browse > Article
http://dx.doi.org/10.3795/KSME-B.2004.28.2.199

Heat Transfer Enhancement by Pulsating Flow in a Plate Heat Exchanger  

Kim, Do-Kyu (국민대학교 대학원 기계공학과)
Kang, Byung-Ha (국민대학교 기계·자동차공학부)
Kim, Suk-Hyun (국민대학교 기계·자동차공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.28, no.2, 2004 , pp. 199-206 More about this Journal
Abstract
The heat transfer enhancement by pulsating flow in a plate heat exchanger has been experimentally investigated in this study. The effect of the pulsating flow, such as pulsating frequency and flow rate on the heat transfer as well as pressure drop in a plate heat exchanger has been studied in detail. Reynolds number in cold side of a plate heat exchanger is varied 100∼530 while that of hot side is fixed at 620. The pulsating frequency is considered in the range of 5∼30 Hz. The results of the pulsating flow are also compared with those of steady flow. It is found that the average heat transfer rate as well as pressure drop is increased as flow rate is increased for both steady flow and pulsating flow cases. When pulsating flow is applied to the plate heat exchanger, heat transfer could be substantially increased in particular ranges of pulsating frequency or Strouhal number; St=0.36∼0.60 and pressure drop is also increased, compared with those of steady flow. However, in the region of low pulsating frequency or high pulsating frequency, heat transfer enhancement is in meager. Heat transfer enhancement map is suggested based on Strouhal number and Reynolds number of pulsating flow.
Keywords
Pulsating Flow; Plate Heat Exchanger; Heat Transfer Enhancement; Pressure Drop;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Faghri, M., Javdani, K., and Faghri, A., 1979, 'Heat Transfer with Laminar Pulsating Flow in a Pipe,' Letters in Heat and Mass Transfer, Vol. 6, pp. 259-270   DOI   ScienceOn
2 Kwon, O. J., Lee, D. Y., Kim, S. Y., and Kim, Y. C., 2001, 'An Experimental Study on the Heat Transfer Enhancement by Pulsating Flow in a Triangular Grooved Channel,' Korean Journal of Air-conditioning and Refrigeration Engineering, Vol. 13, No. 10, pp. 1009-1016
3 Yan, Y. Y., and Lin, T. F., 1999, 'Evaporation Heat Transfer and Pressure Drop of Refrigerant R-134a in a Plate Heat Exchanger,' Journal of Heat Transfer, Vol. 121, pp. 118-127   DOI   ScienceOn
4 Kim, Y. H., and Lee, K. J., 2002, 'An Experimental Study on Evaporation Heat Transfer and Pressure Drop in Plate Heat Exchangers with Different Chevron Angles,' Transaction of the KSME, Vol. 26, No. 2, pp. 269-277
5 Lee, J. H., Lee, G. T., and Kang, B. H., 1992, 'A Study on Flow and Heat Transfer Characteristics in a Duct with Periodic Pressure Gradient,' Transaction of the KSME, Vol. 16, No. 2, pp. 369-381   과학기술학회마을
6 Lee, G. T., Kang, B. H., Lee, J. H., and Lee, C. S., 1992, 'Experimental Investigation on Heat Transfer Characteristics in a Uniformly Heated Pipe with Pulsating Pressure,' Transaction of the KSME, Vol. 16, No. 9, pp. 1760-1769   과학기술학회마을
7 Kurzweg, U. H., 1985, 'Enhanced Heat Conduction in Oscillating Viscous Flow Within Parallel Plate Channel,' J. Fluid Mech., Vol. 156, pp. 291-300   DOI   ScienceOn
8 Ghaddar, N. K., Korczak, K. Z., Mikic, B. B., and Patera, A. T., 1986, 'Numerical Investigation of Incompressible Flow in Grooved Channels. Part 1. Stability and Self-Sustained Oscillations,' J. Fluid Mech., Vol. 163, pp. 99-127   DOI   ScienceOn
9 Greiner, M, 1991, 'An Experimental Investigation of Resonant Heat Transfer Enhancement in Grooved Channels,' Int. J. Heat Mass Transfer, Vol. 34, No. 6, pp. 1383-1391   DOI   ScienceOn
10 Nishimura, T., Oka, N., Yoshinaka, Y., and Kunitsugu, K., 2000, 'Influence of Imposed Oscillatory on the Mass Transfer Enhancement of Grooved Channels for Pulsatile Flow,' Int. J. Heat Mass Transfer, Vol. 43, pp. 2065-2374   DOI   ScienceOn
11 Lee, S. C., 1999, 'Present Condition and View of the Heat Transfer Enhanced Technique,' Journal of the KSME, Vol. 39, No. 3, pp. 33-37
12 Kang, B. H., and Kim, S. Y., 1999, 'Heat Transfer Enhancement by Flow Resonance,' Journal of the KSME, Vol. 39, No. 3, pp. 47-50