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Volume 28 Issue 4
Apr.  2002
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Journal of Beijing University of Aeronautics and Astronautics  > 2002  >  28(4): 459-461.
CUI Hai-ting, YUAN Xiu-gan, YAO Zhong-penget al. Experimental Investigation on Characteristics of Heat Transfer and Pressure Drop of Unusual Spirally Fluted Tube[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(4): 459-461. (in Chinese)
Citation: CUI Hai-ting, YUAN Xiu-gan, YAO Zhong-penget al. Experimental Investigation on Characteristics of Heat Transfer and Pressure Drop of Unusual Spirally Fluted Tube[J]. Journal of Beijing University of Aeronautics and Astronautics, 2002, 28(4): 459-461. (in Chinese)
shu

Experimental Investigation on Characteristics of Heat Transfer and Pressure Drop of Unusual Spirally Fluted Tube

  • 1.

    Hebei University of Science and Technology, College of Electronic and Mechanical Engineering

  • 2. Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics

  • 3. Beijing Institute of Technology, College of Vehicle and Transport Engineering

  • Received Date: 25 Dec 2000
  • Publish Date: 30 Apr 2002
    Abstract
  • Experiments were conducted on a new heat transfer enhanced tube-unusual spirally fluted tube developed based on spirally corrugated ones. Heat transfer and pressure drop characteristics of the tube with turbulent flow were examined as a function of tube geometry and water flow rate. Statistical correlations for friction factor and heat transfer coefficient were developed from a large amount of data by a multivariable linear regression analysis. Factor effecting heat transfer and flow were analysised. The results shown that heat transfer coefficient can be enhanced by 3.0%~8% while the friction force can be reduced by 5%~10%,compared with that of ordinary spirally fluted tube.

     

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  • [1] 崔海亭高效异型强化管的研究现状及发展方向[J].石油机械,1999,27(7):48~50. [2]崔海亭.旋流管及旋流管式换热器研究 .北京:北京理工大学车辆与交通工程学院,2000. [3]Ewing M E, Arnold J A, Chistensen R N. Experimental investigation of spirally fluted annuli:Geometry and flow regime effects[J]. Heat Transfer Engineering,1997,18(1):34~46. [4]Garimella S, Chistensen R N. Heat transfer and pressure drop characteristics of spirally fluted annuli:Part Ⅱ-Heat transfer[J]. Journal of Heat Transfer, 1995,117(2):61~68. [5]吴慧英,帅志明,周强泰.凝结换热器采用螺旋槽管的强化传热研究[J].化工学报,1997,48(5):626~630. [6]Gupta R K, Rao M. Heat transfer and friction characteristics of newtonian and power-law type of non-newtonian fluids in smooth and spirally corrugated tubes[J]. Natl Heat Transfer,1979,45(18):225~231.
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