抄録
We have investigated film condensation heat transfer and sweep-out flow of filmwise condensation on vertical plates with horizontal grooves. Once the sweep-out phenomena occurs, condensate is cleared from the surface of the plate, which means that the thermal resistance disappears. Therefore, heat transfer enhancement can be expected as the water vapor can directly contact again the plate surface. The present work shows the effects of the pitch of the grooves and size of the rest dimensionson on the fluid flow characteristics and heat transfer enhancement.
