Author(s)

R. R. Pacheco^1*, L. O. Freire², M. S. Rocha², N. L. Scuro², M. O. Menezes², D. A. Andrade^2*

¹Centro Tecnológico da Marinha em São Paulo, São Paulo, Brazil.
²Instituto de Pesquisas Energéticas e Nucleares, São Paulo, Brazil.

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.

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

Pacheco, R. , Freire, L. , Rocha, M. , Scuro, N. , Menezes, M. and Andrade, D. (2019) New Formulation for Semi-Empirical Correlations for Penetration Jets. World Journal of Nuclear Science and Technology, 9, 96-111. doi: 10.4236/wjnst.2019.92007.