초록 ▼

A diagnostic method and method of controlling the preferential oxidation of CO in a reformed fuel gas stream includes periodically modulating the amount of air supplied to a preferential oxidation reactor at a specific operating characteristic of the fuel cell, such as power output or fuel flow rate

A diagnostic method and method of controlling the preferential oxidation of CO in a reformed fuel gas stream includes periodically modulating the amount of air supplied to a preferential oxidation reactor at a specific operating characteristic of the fuel cell, such as power output or fuel flow rate, to determine the amount of air necessary to reduce the level of CO to an acceptable level.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of operating a fuel cell system that includes a preferential oxidizer stage, said method comprising:calibrating the fuel cell system at different operating parameters by determining a target rate for injecting an oxidant into the preferential oxidizer stage for

[ What is claimed is:] [1.]1. A method of operating a fuel cell system that includes a preferential oxidizer stage, said method comprising:calibrating the fuel cell system at different operating parameters by determining a target rate for injecting an oxidant into the preferential oxidizer stage for each of the operating parameters;storing results of calibrating the fuel system in memory;while running the fuel system to produce power, injecting the oxidant into the preferential oxidizer stage at a rate that is determined by the stored results; andwhile running the fuel cell system to produce power, periodically, recalibrating the fuel cell to update the stored results.