F28FLevel 3

DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION

**Definition:** This place covers:

Particular elements of heat exchangers; details of heat transfer devices; means for modifying heat transfer; control arrangements for heat exchangers.

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F28F 1/00Tubular elements

F28F 11/00Arrangements for sealing leaky tubes and conduits

F28F 13/00Arrangements for modifying heat-transfer, e.g. increasing, decreasing

F28F 17/00Removing ice or water from heat-exchange apparatus

F28F 19/00Preventing the formation of deposits or corrosion, e.g. by using filters

F28F 21/00Constructions of heat-exchange apparatus characterised by the selection of particular materials

F28F 2200/00Prediction

F28F 2210/00Heat exchange conduits

F28F 2215/00Fins

F28F 2220/00Closure means, e.g. end caps on header boxes or plugs on conduits

F28F 2225/00Reinforcing means

F28F 2230/00Sealing means

F28F 2235/00Means for filling gaps between elements, e.g. between conduits within casings

F28F 2240/00Spacing means

F28F 2245/00Coatings

F28F 2250/00Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means

F28F 2255/00Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes

F28F 2260/00Heat exchangers or heat exchange elements having special size, e.g. microstructures

F28F 2265/00Safety or protection arrangements

F28F 2270/00Thermal insulation

F28F 2275/00Fastening

F28F 2280/00Mounting arrangements

F28F 23/00Features relating to the use of intermediate heat-exchange materials, e.g. selection of compositions

F28F 25/00Component parts of trickle coolers

F28F 27/00Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus

F28F 3/00Plate-like or laminated elements

F28F 5/00Elements specially adapted for movement

F28F 7/00Elements not covered by group

F28F 9/00Casings

F28F 99/00Subject matter not provided for in other groups of this subclass

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