| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a duct for cooling capable of preventing the dropping of dew condensation water for a long period without attaching an urethane sponge to a surface. <P>SOLUTION: This duct for cooling 1 is composed of a plastic blow molding, has a number of V-shaped grooves 3 on its outer peripheral face, and has projections 4 corresponding to the grooves 3 on its inner peripheral face. The dew condensation water 6 attached to an outer peripheral face of a wall part 2 is held on bottom parts of the V-shaped grooves 3, and does not drop. The air flow near the wall part 2 stagnates by projections 4 at an inner peripheral face side of the wall part 2, and a layer of the air not so cold, is formed. As the increase of temperature difference between the wall part 2 and an outside air temperature is prevented by the air layer (in particular, a temperature of the outer peripheral face of the wall part 2 is close to the outside air temperature), the dew formation itself on the outer peripheral face of the wall part 2 is inhibited, and simultaneously the evaporation of the dew condensation water is promoted, thus the increase of attachment of the dew condensation water can be reduced. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
