Condensation

From Thermal-FluidsPedia

Condensation occurs when a saturated or superheated vapor – pure or multi-component – comes into contact with an object, such as a wall or other contaminant, that has a temperature below the saturation temperature.

• Basics

Heterogeneous and homogeneous condensation, and phase diagrams for condensation of binary vapor.

• Dropwise Condensation

Dropwise condensation formation theories, critical droplet radius, thermal resistances, and heat transfer coefficient.

• Filmwise Condensation

Regimes, governing equations for a binary vapor mixture, stagnant pure vapor reservoir, effects of vapor motion, turbulent film condensation, cylinders and spheres, and effects of noncondensable gas

• Nongravitational Condensate Removal

8.4.1 Condensation in a Tube with Suction at the Porous Wall 8.4.2 Annular Condensation Heat Transfer in a Microgravity Environment 8.4.3 Condensation Removal by a Centrifugal Field via a Rotating Disk 8.4.4 Condensation by Capillary Action in a Heat Pipe Vapor Space Wick Wall Boundary Conditions Initial Conditions

• Film Condensation in Porous Media

8.5.1 Overview 8.5.2 Gravity-Dominated Film Condensation on an Inclined Wall 8.5.3 Effect of Surface Tension on Condensation in Porous Media

, dropwise condensation, vertical plate, cylinder and sphere, nongravitational condensate removal, and film condensation in porous media.