Indirect measurement of fuel concentration in a liquid feed fuel cell
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United States of America Patent
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Mar 2, 2004
Grant Date -
Jun 19, 2003
app pub date -
Dec 19, 2001
filing date -
Dec 19, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
In an operating liquid feed fuel cell system, fuel concentration in the fuel stream can be calculated as a function of the observed current, the temperature of the fuel stream entering the fuel cell stack, and the temperature of the fuel cell stack itself, thereby eliminating the need for a separate sensor. Typically, methanol will be used as the fuel and the liquid feed fuel cell system will thus be a direct methanol fuel cell system.
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