Heat exchange – Intermediate fluent heat exchange material receiving and... – Liquid fluent heat exchange material
Patent
1993-09-10
1995-10-17
Rivell, John
Heat exchange
Intermediate fluent heat exchange material receiving and...
Liquid fluent heat exchange material
165 46, 16510427, 257715, 361700, F28D 1502
Patent
active
054581893
ABSTRACT:
A two-phase liquid cooling system has a container structure that has at least one wall with sufficient flexibility that the wall expands as the coolant vapor expands thereby maintaining the internal container pressure substantially the same as the ambient environmental pressure. Coolant boiling overshoot is reduced by allowing residual gases to remain in the cooling system. More particularly, sufficient residual gas is maintained in the system so that some of the gas dissolves in the liquid coolant when the device is not operating and is at ambient temperature. During warmup, the residual gas comes out of solution and creates nucleation sites that initiate boiling and prevent overshoot. Additional nucleation sites can also be added to reduce overshoot by treating the inside surfaces of the container structure, for example by laser machining, to create nucleation sites.
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Larson Ralph I.
Phillips Richard J.
Aavid Laboratories
Leo L. R.
Rivell John
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