Heat exchanger with bypass channel louvered fins

Details Heat exchanger with bypass channel louvered fins Heat exchanger with bypass channel louvered fins

1989-08-14

1990-09-25

Ford, John

Heat exchange

Radiator core type

Side-by-side tubes traversing fin means

165152, 165181, F28D 104, F28F 132

Patent

active

049586815

ABSTRACT:
Louvered fins in fin and tube type heat exchangers extend across the spaces between adjacent tubes. Adjacent tubes are separated by a distance s and louvers in the fins extend between the tubes but stop short of the tubes to leave some plain fin area which defines a bypass channel of width b between each tube and adjacent louvers. The curve of heat transfer versus air side pressure drop increases as the ratio b/s decreases. An optimum value of b/s occurs at the knee of the curve and lower values of the ratio effect insignificant improvements in heat transfer.

REFERENCES:
patent: 2006649 (1935-07-01), Modine
patent: 3250325 (1966-05-01), Rhodes et al.
patent: 3265127 (1966-08-01), Nickol et al.
patent: 3724538 (1973-04-01), Yamaguchi et al.
patent: 4332293 (1982-06-01), Hiramatsu
patent: 4434844 (1984-03-01), Sakitani et al.
patent: 4615384 (1986-10-01), Shimada et al.
patent: 4693307 (1987-09-01), Scarselletta
patent: 4723599 (1988-02-01), Hanson
patent: 4756362 (1988-07-01), Kudoh et al.

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