Theoretical Model of Direct Contact Condensation on Horizontal Surfaces

摘要

In the present report, referring to a previous experimental research, a model for direct contact condensation between saturated steam (in a quasistagnant situation) and subcooled (horizontally slowly flowing) water is shown. The experiments, contrarily to the Nusselt theory, refer to a direct contact condensation situation in which a consistent and well defined bulk region takes place in the liquid phase. A good agreement appears from the comparison of predictions with the experimental data. Although the model has been developed for a particular (cylindrical) geometry, it can be easily extended to other ones. An extention to the plane geometry, together with ad hoc experiments, will be accomplished in the close future. 16 refs. (Atomindex citation 19:028371)