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Convective heat transfer in ventilated space with various partitions

  • Thermal Engineering · Fluid Engineering · Energy and Power Engineering
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Abstract

The laminar convective heat transfer in ventilated space with various horizontal partitions was studied numerically and experimentally. For the numerical study, the governing equations were solved by using a finite volume method for various numbers Re, Gr, Pr and partition numbers. The experimental study was conducted by using a holographic interferometer. The isotherms and velocity vectors have been presented for various parameters. As the number and length of partition ncreased, convective heat transfer decreased. Based on the numerical data, correlation equations were obtained for the mean Nusselt number in term of Gr/Re2. In the region ofGr/Re2<-1, the mean Nusselt number was small, but in the region ofGr/Re2>1, the mean Nusselt number was constant.

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Abbreviations

b :

Inlet breadth of space [m]

g :

Gravity acceleration [m/s2]

Gr :

Grashof number

h :

Convection heat transfer factor [w/m2·k]

k :

Conduction heat transfer factor [w/m·k]

L p :

Dimensionless length of partitions

l p :

Length of partitions [m]

Nu :

Local Nusselt number

\(\overline {Nu} \) :

Mean Nusselt number

\(\overline {Nu} _o \) :

Mean Nusselt number without partition

n :

Normal coordinate to wall

Pr:

Prandtl number

Re:

Reynolds number

T :

Temperature [°C]

u :

X direction velocity [m/s]

v :

Y direction velocity [m/s]

x:

Horizontal coordinate [m]

y:

Vertical coordinate [m]

β:

Thermal expansion coefficient [K−1]

μ:

Viscosity [kg/ms]

ν:

Kinematic viscosity [m2/s]

θ:

Dimensionless temperature

ρ:

density [kg/m3]

in :

Inlet of space

w :

Heated wall

References

  • Cheesewright, R., King, K. J. and Ziai, S., 1986, “Experimental data of the Validation of Computer Codes for the Prediction of Two Dimensional Buoyancy Cavity Flow,”Significant Questions in Buoyancy Affected Enclosure or Cavity Flows, ASME-HTD, pp. 75–81.

  • Choi, M. and Cho, K., 2000, “Influence of an Aspect Ratio of Rectangular Channel on the Cooling Performance of a Multichip Module,”KSME Int. J., Vol. 14, No. 3, pp. 350–357.

    MathSciNet  Google Scholar 

  • Chung, H., Jeong, H., Lee, C. and Kwon, S., 1998, “Study on Convection Heat Transfer in a Ventilated Room with Horizontal Partitions,”Proc. of 11 th IHTC, Vol. 3, pp. 245–250.

    Google Scholar 

  • Davidson, L., 1990, “Calculation of the Turbulent Buoyancy-Driven Flow in a Rectangular Cavity Using an Efficient Solver and Two Different Low Reynolds Numberk-∈ Turbulence Models,”Numerical Heat Transfer, Vol. 18, Part A, pp. 129–147.

    Article  Google Scholar 

  • Ede, A. J., 1976, “Advances in Free Convection,”Advances in Heat Transfer, Academic Press, New York, pp. 1–64.

    Google Scholar 

  • Hanjalic, K., kenjeres, S. and Durst, F., 1994, “Numerical Study of Natural Convection in Partitionve 2-Cimensional Enclosures at Transition Rayleigh Numbers,”Proc, 10 th Int. Heat Transfer Cong., Brighton, Vol. 7, pp. 97–102.

    Google Scholar 

  • Lakhal, E. K., Hasnaoui, M., Bilgen, E. and Vasseur, P., 1994, “Natural Convection Heat Transfer in Rectangular Enclosures with Perfectly Conduction Fins Attached on the Heated Wall,”Proc. 10 th Int. Heat Transfer Cong., Brighton, Vol. 7, pp. 97–102.

    Google Scholar 

  • Launder, B. E. and Sharma, B. I., 1974, “Application of the Energy-Dissipation Model of Turbulence to the Calculation of Flow Near a Spining Disc,”Letters in Heat and Mass Transfer, vol. 1, pp. 131–138.

    Article  Google Scholar 

  • Lee, J., Kang, T., Lee, K., Cho, M., Shin, J., Kim S., Koo, J. and Lee, J., 2000, “An Experimental Study of Ventilation Effectiveness in Mechanical Ventilation Systems using a Tracer Gas Method,”KSME Int. J., Vol. 14, No. 11, pp. 1286–1295.

    Google Scholar 

  • Oberkampf, W. L. and Crow, L. I., 1976, “Numerical Study of the Velocity and Temperature Field in a Flow-Through Reservoir,”Journal of Heat Transfer, ASME, pp. 353–359.

  • Papanicolaou, E. and Jaluria, Y., 1995, “Computation of Turbulent Flow in Mixed Convection in a Cavity with a Localized Heat Source,”Journal of Heat Transfer, ASME, Vol. 117, pp. 649–658.

    Article  Google Scholar 

  • Penot, F. and Pavlovic, M., 1986, “Heat Transfer Analysis of Mixed Convection in a Heated Cavity,”Proc. 8 th Int. Heat Transfer Conf., San Francisco, Vol. 3, pp. 1419–1424.

    Google Scholar 

  • Susuki, H., Hasegawa, E. and Matsufuji, H., 1993. “Motion of Small Particles due to a Pulsatile Flow in a Chamber,”ASME International Journal Series N. Vol. 36, No. 1, pp. 57–65.

    Google Scholar 

  • Yang, M. and Tao, W. Q., 1995, “Three-Dimensional Natural Convection in an enclosure with an Internal Isolated Vertical Plate,”Journal of Heat Transfer, ASME, Vol. 117, pp. 619–625.

    Article  Google Scholar 

  • Yucel, A, and Acharya, S., 1991, “Natural Convection of a Radiating Fluid in a Partially Divided Square Enclosure,”Numerical Heat Transfer, Part A, Vol. 19, pp. 417–485.

    Article  Google Scholar 

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Authors and Affiliations

  1. Graduate School, Gyeongsang National University, 650-160, Kyungnam, Korea

    Kangyoul Bae

  2. School of Transport Vehicle Engineering, Gyeongsang National University, 650-160, Kyungnam, Korea

    Hanshik Chung

  3. School of Transport Vehicle Engineering, The Institute of Marine Industry, Gyeongsang National University, 650-160, Kyungnam, Korea

    Hyomin Jeong

Authors
  1. Kangyoul Bae
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  2. Hanshik Chung
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  3. Hyomin Jeong
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Correspondence to Kangyoul Bae.

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Bae, K., Chung, H. & Jeong, H. Convective heat transfer in ventilated space with various partitions. KSME International Journal 16, 676–682 (2002). https://doi.org/10.1007/BF03184817

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  • DOI: https://doi.org/10.1007/BF03184817

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