Optimum Load Of a Proton Exchange Membrane Fuel Cells Based on Hydrogen Flow Control

Abstract

In the future, proton exchange membrane fuel cells system (PEMFCs) hold promises for clean energy. However, there is a problem that causes the degradation in PEMFC system performance namely the voltage drops due to load fluctuations. The voltage drop is caused by the high load power demand. An important factor to improving PEMFCs performance is the availability of sufficient flow of hydrogen. In this paper optimisation of a PEMFCs load based on the hydrogen flow control is presented. In order to validate this project a model of the PEMFCs is simulated. Then verified by experimental testing using a 2 kW of the PEMFCs. The result shows the hydrogen flow control able to reduce the voltage drop of the PEMFCs during load variation and minimise hydrogen consumption.