Heat exchange – Three non-communicating fluids – Concentric flow chambers
Patent
1998-04-21
2000-04-11
Leo, Leonard
Heat exchange
Three non-communicating fluids
Concentric flow chambers
165156, 165163, F28D 710
Patent
active
060477679
ABSTRACT:
A heat exchanger is disclosed having a first chamber, a second chamber positioned inside the first chamber, and a third chamber positioned inside the second chamber. The first, second, and third chambers are in coaxial alignment. A first portion of a first helical tube is positioned inside the second chamber and a second portion of the first helical tube is positioned inside the third chamber and a second helical tube is positioned inside the first chamber. The heat exchanger heats a cryogenic liquid to a gas phase using at least three different heat transfer fluids in one contained unit without mixing any of the fluids in the exchanger.
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Georgiev, Kovatchev: "Multichannel low Temperature Heat Exchanger"; Cryogenics, vol. 14, No. 1; Jan. 1974 (1974-01), pp. 25-28.
Bodhaine Jim
Hassanein Hany E.
Leo Leonard
Seal Cynthia G.
Vita International, Inc.
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