ISSN Online: 2377-424X
ISBN Print: 0-89116-299-2
International Heat Transfer Conference 7
EFFECT ON DROPWISE CONDENSATION OF CENTRIFUGAL FORCES PARALLEL TO THE SURFACE
Résumé
A theoretical and experimental investigation
was conducted to determine the influence of body
forces and drop departure size on the dropwise
condensation heat transfer coefficient. The
analysis considered heat transfer through a drop,
the drop departure size, and the size distribution.
The centrifugal accelerations used covered
the range from 1 to 800 g's, with water vapor at
atmospheric pressure condensing on a gold-plated
copper surface.
The measured heat transfer coefficients ranged between 0.2 and 0.6 MW/m2°K. Still photographs provided the measurements of maximum drop size on the surface at different accelerations. Variation of measured heat transfer coefficients with the body forces and drop departure sizes agreed well with the predictions.
The measured heat transfer coefficients ranged between 0.2 and 0.6 MW/m2°K. Still photographs provided the measurements of maximum drop size on the surface at different accelerations. Variation of measured heat transfer coefficients with the body forces and drop departure sizes agreed well with the predictions.