FUEL CELL AND COOLANT STORAGE

A method of operating a fuel cell system (1) comprising a fuel cell assembly (2) configured to generate electrical power from a fuel flow and an oxidant flow, the method comprising a first phase and a subsequent second phase, the first phase comprising;operating the fuel cell assembly (2) with a fir...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	RAMA, Pratap, PALMER, Nathaniel, FOSTER, Simon, MOGHIMI, Shahin, GARDNER, Vince
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	A method of operating a fuel cell system (1) comprising a fuel cell assembly (2) configured to generate electrical power from a fuel flow and an oxidant flow, the method comprising a first phase and a subsequent second phase, the first phase comprising;operating the fuel cell assembly (2) with a first stoichiometric ratio of oxidant flow to fuel flow to generate electrical power;providing said generated electrical power to a heater element (12) for heating a coolant for supply to said fuel cell assembly (2);the second phase comprising;delivering coolant heated in the first phase to the fuel cell assembly (2);operating the fuel cell assembly (2) with a second stoichiometric ratio of oxidant flow to fuel flow to generate electrical power, the second stoichiometric ratio lower than the first ratio.