Performance Comparison Study of Solid Oxide Fuel Cell With Direct Oxidation in Three Fuel Types

A solid oxide fuel cell (SOFC) can be fed with several types of fuel, including hydrogen gas, carbon monoxide and methane, which are direct oxidation fuels within the cell. In this paper, models of thermochemical and thermoelectric processes were designed and calculated for three types of fuels by using C++ program, The results indicated the thermal behavior and electrical output of the fuel cell according to the temperature change over its operation period. This study showed that the maximum and minimum values for cell outputs such as reversible voltage, electrical work, heat generated and cell efficiency. The behavior of changing these outputs with the increasing operating temperature was compared for each chemical reaction of three direct oxidation fuels.