A hybrid solid oxide fuel cell and gas turbine power
system models was developed and implemented in
MATLAB. Two types of model have been developed
based on simple thermodynamic expressions. Some
important observations are made during the confi guration
study. The fuel cell performance is found to be a strong
function of operating temperature (which depends upon
the preheating of the input streams) and hence when
the heat exchanger properties are varied with the air
mass fl ow rate, the cycle performance shifts towards
favorable conditions. The parameters that limit the cycle
performance are the SOFC temperature, the turbine
inlet temperature, and the exhaust temperature. Though
at high SOFC temperatures, the cycle effi ciency is high,
the cycle operation under these conditions is not feasible
after a certain point. The results of the presented model
(confi guration 1) were validated by comparing with the
earlier model from available literature.