TITLE:
New Formulation for Semi-Empirical Correlations for Penetration Jets
AUTHORS:
R. R. Pacheco, L. O. Freire, M. S. Rocha, N. L. Scuro, M. O. Menezes, D. A. Andrade
KEYWORDS:
Direct Contact Condensation, Vapor Jet, Steam Jet, Steam Mass Flux, Vapor Cavity, Reynolds Number, Jet Radius, Rate of Condensation, Non-Dimensional Jet Length, Liquid Pool, Dimensionless Transport Modulus, Condensation Driving Potential
JOURNAL NAME:
World Journal of Nuclear Science and Technology,
Vol.9 No.2,
April
30,
2019
ABSTRACT: Correlations for the extension of a water vapor jet injected in a liquid pool were historically proposed considering the mass flux (kg/m2/s) as a constant. The results were satisfactory, however adjusting the values by linear regression. Although, it presents the following drawbacks: 1) the formulation is only valid for the specific range of data for what it was created; 2) it does not allow the analytical evaluation of the heat transfer coefficient from the extension equation. This paper proposes a new formulation for the calculation of the mass flux, in such a way to remove both of these drawbacks.