A method developed earlier for modeling conjugate two-phase heat transfer in flashing flows was used to obtain a numerical solution for transient boiling flow in heated pipes or channels. Two criteria of applicability of the solution obtained were proposed and numerically tested using a more rigorous model, which accounts for the effects of heat conduction with heat generation in the wall and forced convective boiling. The solution obtained provides a simple and reliable alternative to more rigorous methods for modeling transient two-phase flow in heated channels when the material of the wall bounding the flow has a high thermal conductivity and the wall superheat is small.

Issue Section:
Technical Notes
Keywords:
boiling, two-phase flow, pipe flow, convection, numerical analysis, channel flow, forced convection, Boiling, Conjugate, Heat Transfer, Transient, Two-Phase
Topics:
Boiling, Fluids, Heat, Heat transfer, Pipelines, Pipes, Transients (Dynamics), Temperature, Flow (Dynamics), Two-phase flow, Heat conduction
1.
Vanvik, T., and Moe, R., 1998, “Direct Heating of Multiphase Flowlines for Hydrate Control on A˚sgard,” Multiphase Technology, Technology from the Arctic to the Tropics, J. P. Brill and G. A. Gregory, eds., BHR Group, pp. 207–216.
2.
Aarseth, F., 1997, “Use of Electrical Power in Control of Wax and Hydrates,” Offshore Technology Conference, Annual Proceedings, 4, Richardson, TX, USA, p. 13.
3.
Bergles, A. E., 1981, “Instabilities in Two-Phase Systems,” Two-Phase Flow and Heat Transfer in the Power and Process Industries, J. G. Collier, J. M. Delhaye, G. F. Hewitt, and F. Mayinger, eds., Hemisphere Publishing Corporation, pp. 383–423, Chap. 13.
4.
Fairuzov
,
Y. V.
,
2000
, “
Modeling of Conjugate Two-Phase Heat Transfer During Depressurization of Pipelines
,”
ASME J. Heat Transfer
,
122
, pp.
99
–
106
.
5.
Fairuzov
,
Y. V.
,
1998
, “
Numerical Solution for Blowdown of Pipeline Containing Flashing Liquid
,”
AIChE J.
,
44
, pp.
2124
–
2128
.
6.
Bejan, A., 1993, Heat Transfer, John Wiley & Sons, New York.
7.
Gungor
,
A. E.
, and
Winterton
,
R. S. H.
,
1987
, “
Simplified General Correlation for Saturated Flow Boiling and Comparisons of Correlations With Data
,”
Chem. Eng. Res. Des.
,
65
, pp.
148
–
156
.
8.
Hewitt, G. F., 1998, Boiling, Handbook of Heat Transfer, Third Ed., W. M. Rohsenow, J. P. Hartnett, and Y. I. Cho, eds. McGraw-Hill Handbooks, New York, pp. 15.97–15.103.
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