The Relative Humidity Effect Of The Reactants Flows Into The Cell To Increase PEM Fuel Cell Performance

Mulyazmi Mulyazmi,W.R W Daud,Silvi Octavia,Maria Ulfah,A.C Kumoro,L Yung,Hadiyanto Hadiyanto,M.T Phong,X Rong,P.T.S Nam,S.A Roces,A.W Lothongkum,W.R.W Daud,M.A Hussain

doi:10.1051/matecconf/201815603033

Abstract

Design of the Proton Exchange Membrane (PEM) fuel cell system is still developed and improved to achieve performance and efficiency optimal. Improvement of PEM fuel cell performance can be achieved by knowing the effect of system parameters based on thermodynamics on voltage and current density. Many parameters affect the performance of PEM fuel cell, one of which is the relative humidity of the reactants that flow in on the anode and cathode sides. The results of this study show that the increase in relative humidity value on the cathode side (RHC) causes a significant increase in current density value when compared to the increase of relative humidity value on the anode side (RHA). The performance of single cells with high values is found in RHC is from 70% to 90%. The maximum current density generated at RHA is 70% and RHC is 90% with PEM operating temperature of 363 K and pressure of 1 atm

Highlights

Fuel cells are electro chemical devices that convert chemical energy from fuel and oxidant directly into electrical energy and thermal energy, producing water as a by product [1,2,3]
These parameters consist of the operating conditions, the design of the membrane electrolyte assembly (MEA) and the stack Proton Exchange Membrane (PEM) fuel cell system [4,5]
Conditions 1 and 2 in table 2 show that the single PEM fuel cell was able to maintain the current density at the same value when the RHC was 50%, even though the RHA was increased from 50% to 70%

Summary

Introduction

Fuel cells are electro chemical devices that convert chemical energy from fuel (hydrogen) and oxidant (oxygen or air) directly into electrical energy and thermal energy, producing water as a by product [1,2,3]. The main purpose is to achieve optimal performance and obtain a low-cost PEM fuel cell s y s tem. The purpose of studies on PEM fuel cell systems is to consider the capital and operational costs, efficiency, fuel consumption, flexibility and fuel cell life [7,8,9,10]. Other parameters such as the pressure, temperature, composition and utilization of the fuel, and composition and the utilization of oxidant can be varied simultaneously to achieve the desired operating point. The focus was to determine the relative humidity of the reactants entering the PEM fuel cell stack on the voltage and the current density that was produced by the resulting fuel cell system

RESEARCH DESIGN

Water Liquid in the reactant

PEM Fuel Cell Performance

ResultS and Discussion

Findings

Conclusion