Advertisement

Journal of Central South University

, Volume 18, Issue 3, pp 731–738 | Cite as

Characteristics of radiation and convection heat transfer in indirect near-infrared-ray heating chamber

  • Hoon-ki ChoiEmail author
  • Geun-jong Yoo
  • Churl-hwan Kim
Article
  • 140 Downloads

Abstract

Numerical study was performed to evaluate the characteristics of combined heat transfer of radiation, conduction and convection in indirect near infrared ray (NIR) heating chamber. The effects of important design parameters such as the shape of heat absorbing cylinder and heat releasing fin on the pressure drop and heat transfer coefficient were analyzed with different Reynolds numbers. The Reynolds numbers were varied from 103 to 3×106, which was defined based on the hydraulic diameter of the heat absorbing cylinder. Analyses were performed to obtain the inner and outer flow and the temperature distributions in the heat absorbing cylinder and the rates of radiation heat transfer and convection heat transfer. As the Reynolds number increases, the convection heat transfer rate is increased while the radiation heat transfer rate is decreased. The average convection heat transfer rate follows a power rule of the Reynolds number. Addition of three-dimensional heat releasing fin to the outside of the heat absorbing cylinder enhances the convection heat transfer.

Key words

near infrared ray indirect near infrared ray heater absorbing cylinder heat releasing fin radiation heat transfer convection heat transfer Reynolds number 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    ECHIGO R, HASEGAWA S, KAMITUTO K. Composite heat transfer in a pipe with thermal radiation of two-dimensional propagation in connection with the temperature rise in flowing medium upstream from heating section [J]. Int J Heat Mass Transfer, 1975, 18(10): 1149–1159.CrossRefGoogle Scholar
  2. [2]
    MEHTA R C, KUMAR P. Numerical analysis of a tube with heat generation, thermal radiation, convection and axial conduction [J]. International Journal Heat Mass Transfer, 1985, 28(11): 2169–2171.CrossRefGoogle Scholar
  3. [3]
    YANG G, EBDIAN M A. Thermal radiation and laminar forced convection in the entrance region of a pipe with axial conduction and radiation [J]. The International Journal of Heat and Fluid Flow, 1991, 12(3): 202–209.CrossRefGoogle Scholar
  4. [4]
    ZHENG B, LIN C X, EBDIAN M A. Combined turbulent forced convection and thermal radiation in a curved pipe with uniform wall temperature [J]. Numerical Heat Transfer (Part A): Applications, 2003, 44(2): 149–167.CrossRefGoogle Scholar
  5. [5]
    SCHULER C, CAMPO A. Numerical prediction of turbulent heat transfer in gas pipe flows subject to combined convection and radiation [J]. The International Journal of Heat and Fluid Flow, 1988, 9(3): 308–315.CrossRefGoogle Scholar
  6. [6]
    AL-AMRI FAHAD G, EI-SHAARAWI MAGED A I. Combined forced convection and surface radiation between two parallel plates [J]. The International Journal of Numerical Methods for Heat and Fluid Flow, 2010, 20(2): 218–239.CrossRefGoogle Scholar
  7. [7]
    CHERIF Y, JOULIN A, ZALEWSKI L, LASSUE S. Superficial heat transfer by forced convection and radiation in a horizontal channel [J]. International Journal of Thermal Science, 2009, 48: 1696–1706.CrossRefGoogle Scholar
  8. [8]
    BALAJI C, HOLLING M, HERWI H. Combined laminar mixed convection and surface radiation using asymptotic computational fluid dynamics (ACFD) [J]. Heat and Mass Transfer, 2007, 43(6): 567–577.CrossRefGoogle Scholar
  9. [9]
    MAHAPATRA S K, NANDA P, SARKAR A. Analysis of coupled conduction and radiation heat transfer in presence of participating medium-using a hybrid method [J]. Heat and Mass Transfer, 2005, 41: 890–898.CrossRefGoogle Scholar
  10. [10]
    MAHAPATRA S K, NANDA P, SARKAR A. Interaction of mixed convection in two-sided lid driven differentially heated square enclosure with radiation in presence of participating medium [J]. Heat and Mass Transfer, 2006, 42: 739–757.CrossRefGoogle Scholar
  11. [11]
    MOHAMMED H A, SALMAN Y K. Combined natural and forced convection heat transfer for assisting thermally developing flow in a uniformly heated vertical circular cylinder [J]. International Communications in Heat and Mass Transfer, 2007, 34(4): 474–491.CrossRefGoogle Scholar
  12. [12]
    SOARES A A, FERREIRA J M, CHHABRA R P. Flow and forced convection heat transfer in crossflow of non-Newtonian fluids over a circular cylinder [J]. Industrial & Engineering Chemistry, 2005, 44(15): 5815–5827.CrossRefGoogle Scholar
  13. [13]
    GIANOLIO E, CUTI F. Heat transfer coefficients and pressure drops for air coolers with different numbers of rows under induced and forced draft [J]. Heat Transfer Engineering, 1981, 3(1): 38–48.CrossRefGoogle Scholar
  14. [14]
    NIR A. Heat transfer and friction factor correlations for cross flow over staggered finned tube banks [J]. Heat Transfer Engineering, 1991, 11(1): 44–58.Google Scholar
  15. [15]
    MICHAEL F M. Radiative heat transfer [M]. Academic Press, 2003.Google Scholar
  16. [16]
    CFX v12 Solver theory [M]. South Pointe: ANSYS Inc, 2009: 1–169.Google Scholar
  17. [17]
    PATANKAR S V. Numerical heat transfer and fluid flow [M]. New York: McGraw-Hill, 1980: 1–78.Google Scholar
  18. [18]
    CHANG P K. Control of flow separation [M]. New York: McGraw-Hill, 1976: 199–209.Google Scholar
  19. [19]
    ANDERSON A D, TANNEILL J C, PLETCHER R H. Computational fluid mechanics and heat transfer [M]. 2nd ed. New York: McGraw-Hill, 1997: 479–518.Google Scholar
  20. [20]
    WHITE F M. Viscous fluid flow [M]. New York: McGraw-Hill, 1991: 190–205.Google Scholar
  21. [21]
    CHURCHILL S W, BERNSTEIN M A. Correlating equation for forced convection from gases and liquids to a circular cylinder in cross flow [J]. Journal Heat Transfer, 1977, 99: 300–306.CrossRefGoogle Scholar

Copyright information

© Central South University Press and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.School of MechatronicsChangwon National UniversityChangwonKorea

Personalised recommendations