Heat exchange – Flow passages for two confined fluids – Interdigitated plural first and plural second fluid passages
Patent
1979-08-02
1983-08-16
O'Connor, Daniel J.
Heat exchange
Flow passages for two confined fluids
Interdigitated plural first and plural second fluid passages
165136, 165174, F28F 308
Patent
active
043985963
ABSTRACT:
An improvement to the plate-type heat exchangers/vaporators constituted in per se known manner by a stack of a plurality of rectangular plates each having four orifices in the vicinity of the apices of the rectangle and thus constituting juxtaposed parallelelpipedic racks, alternately traversed in countercurrent by the hot fluid and the cold fluid, said cold racks having at their apex located in the vicinity of the cold fluid intake a strip having flow holes defining a cold fluid supply chamber and an evaporation chamber where the cold fluid evaporates by flowing as thin trickles in contact with the hot wall, the four orifices of each plate serving respectively for the admission and discharge of the cold and hot fluids, wherein the cold fluid intake is provided with a fitting or lining of a thermally insulating material which serves to create, by reducing the intake diameter, a supplementary pressure drop for said cold fluid and brings about a greater thermal gradient between said cold fluid and the hot plates in the supply pipe.
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Lauro Fernand
Manon Bernard
Marie Gerard
Commissariat a l''Energie Atomique
Handal Anthony H.
Meller Michael N.
O'Connor Daniel J.
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