Electric equivalent circuit model of an alkaline fuel cell

M. Durr, S. Gair, A.J. Cruden, J.R. McDonald

Research output: Contribution to journalArticle

Abstract

The Centre of Economic Renewable Power Delivery (CERPD) at the University of Strathclyde has developed various fuel cell (FC) systems for stationary and vehicular applications. The aim of the research is to design and build reliable and cost efficient FC systems, which could replace existing conventional technology in the near future. To size each component of the system efficiently the behaviour of the alkaline fuel cell (AFC) stack has been modelled. The electric equivalent circuit model developed allows easy characterization of the fuel cell stack by electric parameters, such as internal resistance and stack capacitance. The model is used to forecasts the behaviour of the fuel cell stack under various operating conditions. A mathematical analysis of the suggested equivalent circuit is presented in the paper. The so-called Nernst potential, which describes the open circuit voltage of the stack, is calculated using thermodynamic theory. Electrochemistry theory has been used to explain the causes of the different losses within the FC, such as activation, ohmic and concentration losses. In the model these losses are expressed using electric circuit elements. The circuit elements are derived from experimental tests, which are described in detail in the paper.
Original languageEnglish
Pages (from-to)1-6
Number of pages5
JournalWSEAS Transactions on Circuits and Systems
Volume4
Issue number9
Publication statusPublished - Sep 2005

Fingerprint

Alkaline fuel cells
Equivalent circuits
Fuel cells
Networks (circuits)
Electrochemistry
Open circuit voltage
Capacitance
Chemical activation
Thermodynamics
Economics
Costs

Keywords

  • alkaline fuel cells
  • electrochemistry
  • equivalent circuits
  • thermodynamics

Cite this

@article{ea77d659ea4143c8b53b89c99e4b6bee,
title = "Electric equivalent circuit model of an alkaline fuel cell",
abstract = "The Centre of Economic Renewable Power Delivery (CERPD) at the University of Strathclyde has developed various fuel cell (FC) systems for stationary and vehicular applications. The aim of the research is to design and build reliable and cost efficient FC systems, which could replace existing conventional technology in the near future. To size each component of the system efficiently the behaviour of the alkaline fuel cell (AFC) stack has been modelled. The electric equivalent circuit model developed allows easy characterization of the fuel cell stack by electric parameters, such as internal resistance and stack capacitance. The model is used to forecasts the behaviour of the fuel cell stack under various operating conditions. A mathematical analysis of the suggested equivalent circuit is presented in the paper. The so-called Nernst potential, which describes the open circuit voltage of the stack, is calculated using thermodynamic theory. Electrochemistry theory has been used to explain the causes of the different losses within the FC, such as activation, ohmic and concentration losses. In the model these losses are expressed using electric circuit elements. The circuit elements are derived from experimental tests, which are described in detail in the paper.",
keywords = "alkaline fuel cells, electrochemistry, equivalent circuits, thermodynamics",
author = "M. Durr and S. Gair and A.J. Cruden and J.R. McDonald",
year = "2005",
month = "9",
language = "English",
volume = "4",
pages = "1--6",
journal = "WSEAS Transactions on Circuits and Systems",
issn = "1109-2734",
number = "9",

}

Electric equivalent circuit model of an alkaline fuel cell. / Durr, M.; Gair, S.; Cruden, A.J.; McDonald, J.R.

In: WSEAS Transactions on Circuits and Systems, Vol. 4, No. 9, 09.2005, p. 1-6.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Electric equivalent circuit model of an alkaline fuel cell

AU - Durr, M.

AU - Gair, S.

AU - Cruden, A.J.

AU - McDonald, J.R.

PY - 2005/9

Y1 - 2005/9

N2 - The Centre of Economic Renewable Power Delivery (CERPD) at the University of Strathclyde has developed various fuel cell (FC) systems for stationary and vehicular applications. The aim of the research is to design and build reliable and cost efficient FC systems, which could replace existing conventional technology in the near future. To size each component of the system efficiently the behaviour of the alkaline fuel cell (AFC) stack has been modelled. The electric equivalent circuit model developed allows easy characterization of the fuel cell stack by electric parameters, such as internal resistance and stack capacitance. The model is used to forecasts the behaviour of the fuel cell stack under various operating conditions. A mathematical analysis of the suggested equivalent circuit is presented in the paper. The so-called Nernst potential, which describes the open circuit voltage of the stack, is calculated using thermodynamic theory. Electrochemistry theory has been used to explain the causes of the different losses within the FC, such as activation, ohmic and concentration losses. In the model these losses are expressed using electric circuit elements. The circuit elements are derived from experimental tests, which are described in detail in the paper.

AB - The Centre of Economic Renewable Power Delivery (CERPD) at the University of Strathclyde has developed various fuel cell (FC) systems for stationary and vehicular applications. The aim of the research is to design and build reliable and cost efficient FC systems, which could replace existing conventional technology in the near future. To size each component of the system efficiently the behaviour of the alkaline fuel cell (AFC) stack has been modelled. The electric equivalent circuit model developed allows easy characterization of the fuel cell stack by electric parameters, such as internal resistance and stack capacitance. The model is used to forecasts the behaviour of the fuel cell stack under various operating conditions. A mathematical analysis of the suggested equivalent circuit is presented in the paper. The so-called Nernst potential, which describes the open circuit voltage of the stack, is calculated using thermodynamic theory. Electrochemistry theory has been used to explain the causes of the different losses within the FC, such as activation, ohmic and concentration losses. In the model these losses are expressed using electric circuit elements. The circuit elements are derived from experimental tests, which are described in detail in the paper.

KW - alkaline fuel cells

KW - electrochemistry

KW - equivalent circuits

KW - thermodynamics

UR - http://www.worldses.org/journals/circuits/index.html

M3 - Article

VL - 4

SP - 1

EP - 6

JO - WSEAS Transactions on Circuits and Systems

JF - WSEAS Transactions on Circuits and Systems

SN - 1109-2734

IS - 9

ER -