Proton-exchange membrane (PEM) fuel cell system mathematical modelling

Abstract

This work presents a mathematical modelling of a proton-exchange membrane (PEM) fuel cell system integrated with a resistive variable load. The model was implemented using MATLAB Simulink software based on an H-500xp pinch top PEM fuel cell type, and it is used to calculate the reference fuel cell current at various steady-state conditions. The reference current is the input value for the simulation of the PEM fuel cell performance. The model was validated using a Horizon H500xp model fuel cell stack system, with the following components: a 500 W PEM fuel cell, a 13.5 DC volt battery for the start-up, a super-capacitor bank to supply peak loads and a 48 V DC-DC boost converter. In addition, the generated power is dissipated by a variable resistive load. The results from the model shows a qualitative agreement with test bench results, with similar trends for stack current and voltage in response to load and hydrogen flow rate variation. The discrepancies ranged from 5% to 10%, depending on the load resistance applied. Both model and experiments showed a hydrogen conversion efficiency of 80%.

Divisions: Engineering & Applied Sciences
Engineering & Applied Sciences > Mechanical Engineering & Design
Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Engineering & Applied Sciences > Chemical Engineering & Applied Chemistry
Additional Information: © 2019 The Authors
Event Title: SDEWES
Event Type: Other
Event Location: Dubrovnik
Event Dates: 2019-10-01 - 2019-10-06
Uncontrolled Keywords: Fuel cells,modelling,computer simulation,Mechanical Engineering,Fluid Flow and Transfer Processes
PURE Output Type: Paper
Published Date: 2019-10-06
Authors: Abdelnasir, Omran ( 0000-0003-2446-5657)
Smith, David
Alaswad, Abed ( 0000-0002-7828-7924)
Amiri, Amirpiran ( 0000-0001-7838-3249)
Sodre, Jose Ricardo ( 0000-0003-2243-8719)
Lucchesi, alessandro

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