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http://dx.doi.org/10.3795/KSME-B.2014.38.1.081

Measurement of Average Pool Boiling Heat Transfer Coefficient on Near-Horizontal Tube  

Kang, Myeong-Gie (Dept. of Mechanical Engineering Education, Andong Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.38, no.1, 2014 , pp. 81-88 More about this Journal
Abstract
An experimental study is performed to obtain an average heat transfer coefficient around the perimeter of a near horizontal tube. For the test a stainless steel tube of 50.8 mm diameter submerged in water at atmospheric pressure is used. Both subcooled and saturated pool boiling conditions are considered and the inclination angle of the tube is changed from the horizontal position to $9^{\circ}$ in steps of $3^{\circ}$. In saturated water, the local boiling heat transfer coefficient at the azimuthal angle of $90^{\circ}$ from the tube bottom can be regarded as the average of the coefficients regardless of the tube inclination angles. However, when the water is subcooled the location for the average heat transfer coefficient depends on the inclination angle and the heat flux. It is explained that the major mechanisms changing the heat transfer are closely related with the intensity of the liquid agitation and the generation of big size bubbles through bubble coalescence.
Keywords
Heat Transfer; Pool Boiling; Average; Tube; Advanced Nuclear Reactor;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Chun, M. H. and Kang, M. G., 1998, "Effects of Heat Exchanger Tube Parameters on Nucleate Pool Boiling Heat Transfer," ASME, J. Heat Transfer, Vol. 120, pp. 468-476.   DOI   ScienceOn
2 Kang, K. H., Kim, S., Bae, B. U., Cho, Y. J., Park, Y. S., and Yun, B. J., 2012, "Separate and Integral Effect Tests for Validation of Cooling and Operational Performance of the APR+ Passive Auxiliary Feedwater System," Nuclear Engineering and Technology, Vol. 44, pp. 597-610.   과학기술학회마을   DOI   ScienceOn
3 Lance, R. P. and Myers, J. E., 1958, "Local Boiling Coefficients on a Horizontal Tube," A.I.Ch.E. Journal, Vol. 4, pp. 75-80.   DOI
4 Cornwell, K. and Einarsson, J. G., 1990, "Influence of Fluid Flow on Nucleate Boiling from a Tube," Experimental Heat Transfer, Vol. 3, pp. 101-116.   DOI
5 Cornwell, K. and Houston, S. D., 1994, "Nucleate Pool Boiling on Horizontal Tubes: a Convection-based Correlation," Int. J. Heat Mass Transfer, Vol. 37, pp. 303-309.
6 Gupta, A., Saini, J. S., and Varma, H. K., 1995, "Boiling Heat Transfer in Small Horizontal Tube Bundles at Low Cross-flow Velocities," Int. J. Heat Mass Transfer, Vol. 38, pp. 599-605.   DOI   ScienceOn
7 Kang, M. G., 2005, "Local Pool Boiling Coefficients on the Outside Surface of a Horizontal Tube," ASME, J. Heat Transfer, Vol. 127, pp. 949-953.   DOI   ScienceOn
8 Sateesh, G., Das, S. K., and Balakrishnan, A. R., 2009, "Experimental Studies on the Effect of Tube Inclination on Nucleate Pool Boiling," Heat Mass Transfer, Vol. 45, pp. 1493-1502.   DOI
9 Sateesh, G., Das, S. K., and Balakrishnan, A. R., 2005, "Analysis of Pool Boiling Heat Transfer: Effects of Bubbles Sliding on the Heating Surface," Int. J. Heat Mass Transfer, Vol. 48, pp. 1543-1553.   DOI   ScienceOn
10 Dominiczak, P. R. and Cieslinski, J. T., 2008, "Circumferential Temperature Distribution during Nucleate Pool Boiling Outside Smooth and Modified Horizontal Tubes," Experimental Thermal and Fluid Science, Vol. 33, pp. 173-177.   DOI   ScienceOn
11 Luke, A. and Gorenflo, D., 200, "Heat Transfer and Size Distribution of Active Nucleation Sites in Boiling Propane Outside a Tube," Int. J. Therm. Sci., Vol. 39, pp. 919-930.   DOI   ScienceOn
12 Das, M. K., 2010, "Study of Local Heat Transfer of Saturated Liquids," Proceedings of the 37th International & 4th National Conference on Fluid Mechanics and Fluid Power, Chennai, India, Dec. 16-18.
13 El-Genk, M. S. and Gao, C., 1999, "Experiments on Pool Boiling of Water from Downward-facing Hemispheres," Nuclear Technology, Vol. 125, pp. 52-69.   DOI
14 Coleman, H. W. and Steele, W. G., 1999, Experimentation and Uncertainty Analysis for Engineers, 2nd Ed., John Wiley & Sons.
15 Holman, H. W., 1997, Heat Transfer, 8th ed., McGraw-Hill.
16 Ginoux, J. J., 1978, Two-Phase Flows and Heat Transfer with Application to Nuclear Reactor Design Problems, Hemisphere Publishing Corporation.