High temperature fuel cell system with an electrical heater
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United States of America Patent
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Jan 7, 2014
Grant Date -
Mar 19, 2009
app pub date -
Sep 14, 2007
filing date -
Sep 14, 2007
priority date (Note) -
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Abstract
Methods and systems for maintaining near operational mode internal temperatures of a high temperature fuel cell system during a hibernation mode are provided. Embodiments of the claimed invention include powering an electric heater adjacent to the high temperature fuel cell system to heat the high temperature fuel cell system. The use of an electrical heater allows the fuel cell system to maintain approximate operation mode internal temperatures during a hibernation mode and eliminates the problems of excess noise, vibration and exhaust emissions typical of previous fuel cell system heating methods. Gross energy savings of 67% and a fuel consumption reduction rate of 33% have been shown when substituting this method with previous fuel cell system heating methods with no additional manufacturing costs.
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