Efficiency and economics analysis of Proton Exchange Membrane fuel cell

Proton Exchange Membrane (PEM) fuel cell using pure hydrogen as fuel is employed to produce electricity due to some advantages, like simplicity, effectiveness, low operating temperature and easy maintenance. PEM fuel cell is a type of fuel cell which is attractive for low power levels and for application that need quick start up and response to load changes. PEM fuel cells as an alternative power source have its electrical efficiency and also power output directly related to its economics. It is obvious that if it is to be used in automobile applications, the PEM fuel cells will have its efficiency and economics playing a vital role. Both the economics and efficiency are interrelated. The relationship is being analyzed in this paper with in depth understanding on the working concept of PEM fuel cell. The relationship is not a single value but it´s a function utilizing various parameters.