METHOD FOR EFFICIENTLY DELIVERING LIQUID ARGON TO A FURNACE BY COOLING COIL RE-CONDENSATION AND SUB-COOLING
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United States of America Patent
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Issued Date -
Dec 12, 2013
app pub date -
Jun 8, 2012
filing date -
Jun 8, 2012
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Abandoned
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Abstract
A method of improving the efficiency in delivery of a cryogenic liquid (160) to the surface of a metal body in a furnace, the method comprising the steps of delivering a first liquid cryogen and a vaporized cryogen gas to a cooling coil (180) which is in heat transfer contact with a second liquid cryogen (140) at a lower temperature than the first liquid cryogen and a vaporized cryogen (160, 170), maintaining the first liquid cryogen and the vaporized cryogen gas in the cooling coil (180) for an amount of time sufficient to condense part of the vaporized cryogen gas to an additional amount of the first liquid cryogen, delivering the first liquid cryogen and the additional amount of first liquid cryogen to the surface of a metal body in a furnace (190, 150).
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