Advances in Heat Transfer Engineering
ISBN Print: 9986-49278-5
BUBBLE BOILING IN FLOW OF ENVIRONMENT-FRIENDLY REFRIGERATING MEDIA
DOI: 10.1615/BHT4.730
pages 647-654
Abstract
In this paper, the author attempts to put forward a simplified description of the process of bubble boiling in a straight pipe. The two-phase one-component (liquid − vapour) system is treated as a continuum governed by the laws of conservation of energy, momentum and mass. The continuum is characterised by parameters that describe the two-phase system, such as density of the two-phase mixture, static void fraction or static equilibrium dryness fraction. In view of engineering applications, a one-dimensional model is used where physical quantities are cross-section averaged. This way the average velocity, pressure, temperature, and so on, are introduced.
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