Parallel wrapped tube heat exchanger

Details Parallel wrapped tube heat exchanger Parallel wrapped tube heat exchanger

1984-07-05

1986-02-04

Richter, Sheldon J.

Heat exchange

Gradated heat transfer structure

Tapered conduit means

62514JT, 165169, F28D 702, F28F 1314, F28F 1308

Patent

active

045679436

ABSTRACT:
A counter flow heat exchanger comprising a central low pressure return tube deformed intermediate its ends to enhance heat transfer capability wrapped by a high pressure tube to conduct fluid to an expansion device. Also disclosed are a method of increasing the heat transfer capacity of a tube bundle heat exchanger and a liquid helium temperature refrigerator or a reliquefier utilizing the heat exchanger.

REFERENCES:
patent: 2443295 (1948-06-01), Bisch
patent: 2578280 (1951-12-01), Barnard
patent: 2578917 (1951-12-01), Bisch
patent: 2621903 (1952-12-01), Cohler
patent: 2653014 (1953-09-01), Sniader
patent: 3055191 (1962-09-01), Dennis
patent: 3063260 (1962-11-01), Dennis
patent: 3353370 (1967-11-01), Patten et al.
patent: 3620029 (1971-11-01), Longsworth
patent: 3749155 (1973-07-01), Buffiere
patent: 4194536 (1980-03-01), Stine et al.
patent: 4316502 (1982-02-01), Sanborn et al.
patent: 4523637 (1985-06-01), Abramo
W. M. Kays & A. L. London, Compact Heat Exchanger, 1964, pp. 8-9, 104-105, 62-63, 14-15.
C. E. Kalb & J. D. Seader, Fully Developed Viscous-Flow Heat Transfer in Curved Tubes with Uniform Wall Temperature, Aiche Journal, vol. 20, 1974, pp. 340-346.

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