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Numerical prediction of the mean temperature of the vapor film in film boiling heat transfer
Publicated to:Computational Thermal Sciences. 8 (1): 1-10 - 2016-01-01 8(1), DOI: 10.1615/ComputThermalScien.2015014392
Authors: Abánades A; Arévalo R; Rebollo L
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Abstract
© 2016 by Begell House, Inc. The phase change heat (hfg) plays a fundamental role in the description of the film boiling phenomena and, therefore, is included in most of the correlation to evaluate film boiling heat transfer coefficients. The Jakob number (Ja) is used to establish the ratio between hfgand the sensible heat required to heat the vapor formed from the saturation temperature of the surroundings to the emperature on the solid-fluid interface. In the most accepted correlations, the enthalpy increase in the fluid is described with a scaling factor of hfgbased on a fraction of Ja. In literature, this fraction varies from 0.34 to 0.95. In this paper, a numerical prediction of the mean temperature of the vapor film and this fraction were done based on computational fluid dynamic (CFD) calculation. Our analysis of the vapor film temperature shows that this Ja fraction is of the order of 0.4, with a small dependency of the emissivity and Prandtl number.
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Bibliometric impact. Analysis of the contribution and dissemination channel
The work has been published in the journal Computational Thermal Sciences, Q3 Agency Scopus (SJR), its regional focus and specialization in Energy Engineering and Power Technology, give it significant recognition in a specific niche of scientific knowledge at an international level.
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Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2025-07-08:
- WoS: 1
- Scopus: 1
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Leadership analysis of institutional authors
This work has been carried out with international collaboration, specifically with researchers from: Venezuela.
There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (ABANADES VELASCO, ALBERTO) and Last Author (REBOLLO MEDRANO, LUIS).