溶融炭酸塩型燃料電池の性能評価 IV.カソード反応論に基づく性能表示式の高精度化
摘要
Theformulationfortheperformanceof01tenCarbonateFuelCe11(MCFC)is requred tQ estimate the efficiency of a CFC plant or to simulate the inner state of a MCFC stack The formulation shQuld have goQd accuracy under variousoperatingconditionsHowevertheperforancesestimatedbyearher formulations have been found to deviate from those measured under lo 02 and CO2 cathQde partial pressures To solve this problem data were collected wlthmanyslnglecellsoperatedundersysteaticcathodegasconditionsThe cathQdeoverpQtentlalformulationwasimprQvedbasedontheconsideratlonof cathode reaction mechanisms As a result t is shown that the behavlo of cathodeoverpotential iswellestimatedfromtheassumedpartialpressure dependenceofmixeddiffusinofsuperxideionO2-andCO2in(iK)CO3 olten carbonate 1