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- Title
Study of the influence of axial conduction in a boiling heated pipe.
- Authors
Chiapero, E. Manavela; Fernandino, M.; Dorao, C. A.
- Abstract
In this work a characterization of a horizontal heated pipe has been performed. This characterization consists in a steady state analysis of the thermohydraulic behavior of a boiling heated channel with subcooled liquid at the inlet. The temperature, velocities and pressure profiles along the heated section have been analyzed and the length of the single- and two-phase flow regions have been characterized. Without axial conduction and due to the big difference in the magnitude of the single- and two-phase heat transfer coefficient, steep temperature gradients were observed. By adding the effect of axial conduction, more heat is removed from the single phase region and added to the two-phase region through the wall. The net effect was a decrease in length of the two-phase flow region and consequent increase of the single-phase region. It was also observed that the axial conduction decreases the gradients in the wall temperature profile but it does not influence markedly its temperature differences with the fluid.
- Subjects
HEAT conduction; THERMODYNAMICS of pipe; TEMPERATURE effect; PRESSURE; TWO-phase flow; NUMERICAL analysis; SIMULATION methods &; models
- Publication
Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers Part A, 2012, Vol 90, Issue 9, p1141
- ISSN
0263-8762
- Publication type
Article
- DOI
10.1016/j.cherd.2011.12.007