METHOD AND DEVICE OF CONTROLLING TEMPERATURE OF COMBUSTOR IN TRANSITIONAL CHANGE OF LOAD

摘要

PROBLEM TO BE SOLVED: To control the temperature of a combustor during operation of fuel cell system which is especially dynamic under all kinds of load conditions. SOLUTION: The method and device of controlling the temperature of a combustor in the fuel cell system comprises a high-speed-operating bypass valve connected in parallel with an air inlet opening of a combustor. A prescribed amount of surplus air is supplied to the fuel cell and the combustor which are connected in series with a source of air. The prescribed amount of surplus air is supplied in sufficient volume so as to correspond with any temperature transition of the fuel cell in operation, as it controls the temperature of the combustor during the starting time of the fuel processor while the load on the fuel cell is zero.