Analysis of Condensation Process From Moist Air

Abstract

Condensation process, from humid airflow over flat plate is investigated theoretically and experimentally. This process is of great importance from engineering applications, point of view such as the processes concerning with moist air treatment. In the theoretical analysis of present work, the flow is assumed to be laminar, steady and of constant physical properties. The process is described by continuity, momentum, energy and concentration partial differential equations expressed in Cartesian coordinate system. Due to the nature of the studied problem and with proper transformation of the problem dependent and independent variables, these governing equations are transformed to set of ordinary differential equations. Accordingly, the solution of these equations leads to similar solution of the problem. This solution is obtained by application of the well-known numerical method of Rung-Kutta accompanied with shooting method. According to this solution, one obtains the values of Nusselt and Sherwood numbers for all values of Reynolds number. The test section, of the experimental work is a rectangular duct

with cooled bottom. The moist air is forced to flow inside the duct, where some of water is condensed over its lower surface. The values