Modeling and Performance Evaluation of Standalone Solid Oxide Fuel Cell for Aircraft APU- II: Dynamic Performance

Golnaz Pourabedin, Fatholah Ommi

Abstract


The analysis of fuel cells can be divided into two areas, steady state modelling, and dynamic modelling. Our prior paper [1] focused on the steady-state performance of anode-supported jet fuel external reforming planar solid oxide fuel cell stack model for aircraft APU application. The aim of the current paper is to evaluate the transient behavior of this solid oxide fuel cell system to sudden electric load changes. The present model solves transient mass, energy, and electrochemical equations for a solid oxide fuel cell and calculates time responses of output parameters of the system by a step change of the electric current. In this model, some important capacitive elements in the fuel cell process are modelled. The focus of this study is on application to “more-electric†airplanes and the regional jet used as a case study. SOFC system heat-up stage and the output voltage response to a sudden load change at small, medium and large timescales are presented in this paper. Results indicate that the electric characteristics be adapted to new conditions of SOFC sooner than the state parameters.


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References


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DOI (PDF): https://doi.org/10.20508/ijsmartgrid.v3i1.38.g44

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