Mehdi Kheirmand - Department of Mechanical Engineering, school of engineering, Yasouj University,Yasouj, Iran.
A. Asnafi - Department of Mechanical Engineering, school of engineering, Yasouj University,Yasouj, Iran. (asnafi@mail.yu.ac.ir)

A finite transmission line is proposed for proton exchange membrane fuel cell when the faradic current is absent due to purging of Inert gas at the back of cathode and anode. Electrochemical impedance was computed by using MATLAB software. The electrical elements from transmission line were extracted fromNyquist and Bode diagrams obtained from computed impedance.

Impedance modeling, MATLAB, proton exchange membrane fuel cell, Nyquist digram, Bode diagram