Dynamic Ullage Control System for a Cryogenic Storage Tank
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United States of America Patent
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Issued Date -
Aug 7, 2014
app pub date -
Feb 4, 2013
filing date -
Feb 4, 2013
priority date (Note) -
Abandoned
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Abstract
A dynamic system for determining an optimal liquid fill level and ullage space for a cryogenic liquid storage tank based on the temperature of the liquid being dispensed into the tank, and the desired operating pressure for an application. A means for selecting a desired operating pressure, such as a dial, is located external to the storage tank. A temperature sensor measures the temperature of the cryogenic liquid being dispensed. An optimal fill level and ullage space is calculated, and communicated to a liquid level sensor and flow control valve.
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