In this study, the performance of a proton exchange membrane fuel cell is investigated analytically. At present the main use and advantages of fuel cells impact particularly strongly on mobile applications such as vehicles, mobile computers and mobile telephones. Some external parameters such as cell temperature ( ), operating pressure of gases (P) and air stoichiometry ( ) affect the performance and voltage losses in PEM fuel cell. Because of the existence of many theoretical, empirical and semi-empirical models of voltage losses in a PEM fuel cell, it is necessary to compare the accuracy of these models. But theoretical models that are obtained from thermodynamic and electrochemical approach, are very exact but complex, so it would be easier to use the empirical and smi-empirical models in order to forecast the fuel cell system performance in many applications such as mobile applications. The main purpose of this study is to obtain the semi-empirical relation of a PEM fuel cell with the least voltage losses. Also the results are compared with the existing experimental results in the literature and a good agreement is seen.
کلید واژگان :PEM fuel cell, performance, mobile application
ارزش ریالی : 300000 ریال
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