CPC Main Group
F28F 13/00 Arrangements for modifying heat-transfer, e.g. increasing, decreasing (F28F1/00 - F28F11/00 take precedence)
9 direct subcodes
Child Classifications
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- F28F 13/02 by influencing fluid boundary (boundary-layer control in general F15D)
- F28F 13/04 by preventing the formation of continuous films of condensate on heat-exchange surfaces, e.g. by promoting droplet formation
- F28F 13/06 by affecting the pattern of flow of the heat-exchange media
- F28F 13/14 by endowing the walls of conduits with zones of different degrees of conduction of heat
- F28F 13/16 by applying an electrostatic field to the body of the heat-exchange medium
- F28F 13/18 by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing