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The paper presents a comparison of the models currently used in relation to the available experimental data. The review highlights the main causes of discrepancies between the results of modeling and experimental data. The models are based on factors that have no physical interpretation and are used only as "fitting parameters". This hampers use of these models in simulations on states other than those that prevailed during the experiments for which the coefficients were determined. • Comparison of the models of proton conducting Solid Oxide Fuel Cells is done. • Main modeling parameters are selected. • Inaccuracies against experimental data are investigated. [ABSTRACT FROM AUTHOR]

The article provides an overview of knowledge on how to model fuel cells using software which is oriented to system modeling. The overview covers several types of fuel cell such as SOFC, MCFC and PEMFC. Fuel cells were modeled using mainly three types of software, i.e. Aspen Hysys, Aspen Plus and Matlab. Based on our literature review, we decided to use Aspen Hysys to create a proton conducting SOFC model. Model construction is based on a reduced order approach that we published earlier. We used available experimental data to verify the model we created on. The results generated by the model and the experimental data were then subjected to an error analysis. Only two of all the articles found contained a set of information that was fit for the purpose of validating the model. The model maps the work of the proton conducting SOFC with high accuracy, i.e., an error of 0.01 V. • The methodology for model implementation in available software is reported. • The model represents an alternative approach for voltage prediction of a H + SOFC. • A validation process for the models implemented in Aspen Hysys/Excel is presented. [ABSTRACT FROM AUTHOR]

• An alternative approach for voltage prediction of a single cell H-SOFC has been developed. • Model is based only on physical, geometrical and material properties of the fuel cell. • A validation process is done. The aim of this study is to develop a new approach for modeling the voltage of H-SOFC. The proposed 0-D model collects electrochemical, thermal, electrical and flow parameters. The main aim is to have a combination of all cell working conditions in as a low number of factors as possible and to have factors that are relatively easy to determine. Various experimental data was collected and the results of the validation process are shown. Various fuel mixtures across relatively wide ranges of parameters were used to validate the model. [ABSTRACT FROM AUTHOR]