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Effect of Hydrogen Inlet Pressure Analysis on open Voltage of Proton Exchange Membrane (PEM) Fuel cell by using Periodogram

Razali, muhammad Zuhaili and Abdullah, Abdul Rahim and Ahmad Khiar, Mohd Shahril (2015) Effect of Hydrogen Inlet Pressure Analysis on open Voltage of Proton Exchange Membrane (PEM) Fuel cell by using Periodogram. Australian Journal of Basic and Applied Sciences, 9 (12). pp. 86-92. ISSN 19918178

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2015 Journal AJBAS Effect of Hydrogen Inlet Pressure Analysis on open Voltage of Proton Exchange Membrane (PEM) Fuel cell by using Periodogram.pdf

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Abstract

Proton Exchange Membrane Fuel cell (PEMFC) is one of the renewable energy system that was recently highlighted by researchers. PEM fuel cell generates electricity through the electrochemical reaction of hydrogen and oxygen. Finite changes in the reactant inlet properties leads to unique operating changes within the fuel cell stack. The effect of hydrogen inlet pressure to the operating voltage has been detailed before using a variation of monitoring techniques. Identification analysis is required to monitor every factor that influences the performance characteristic of PEMFC. Periodogram monitoring technique applies a frequency domain waveform signal capable of tracing small changes in the phase behaviour of electrical operations as external parameters are varied. The use of this technique is provided in this paper within the scope of monitoring the signal changes in the open voltage of a 30Watt (W) PEM fuel cell stack as the hydrogen inlet pressure is varied from 0.1 bar to 0.5 bar. The open voltage increases with rise in hydrogen inlet pressure and the Periodogram amplitude signal increases accordingly. Then, the magnitudes of total tolerance voltage, the signal characteristic of direct current voltage (VDC), root means square voltage (VRMS), and alternating current voltage (VAC) were calculated from the voltage waveform where losses could be identified. Therefore, the Periodogram technique has been proven useful and practical in monitoring operation changes of a PEM fuel cell stack.

Item Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Electrical Engineering > Department of Power Electronics & Drives
Depositing User: Dr Abdul Rahim Abdullah
Date Deposited: 08 Jul 2015 00:51
Last Modified: 08 Jul 2015 00:51
URI: http://eprints.utem.edu.my/id/eprint/14716

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