Gas energy meter for inferential determination of thermophysical properties of a gas mixture at multiple states of the gas
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United States of America Patent
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Jul 8, 2008
Grant Date -
Mar 23, 2006
app pub date -
Jun 30, 2005
filing date -
Jun 30, 2004
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Abstract
A gas energy meter that acquires the data and performs the processing for an inferential determination of one or more gas properties, such as heating value, molecular weight, or density. The meter has a sensor module that acquires temperature, pressure, CO2, and speed of sound data. Data is acquired at two different states of the gas, which eliminates the need to determine the concentration of nitrogen in the gas. A processing module receives this data and uses it to perform a 'two-state' inferential algorithm.
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