Effect of dynamic load on the temperature profiles and cooling response time of a proton exchange membrane fuel cell

Wan Ahmad Najmi Wan Mohamed, Siti Fatimah Abu Talib, Irnie Azlin Zakaria, Aman Mohd Ihsan Mamat, Wan Ramli Wan Daud

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Polymer Electrolyte Membrane Fuel Cells (PEMFC) is an electrochemical device that generates electrical energy from the reactions between hydrogen and oxygen. An effective thermal management is needed to preserve the fuel cell performance and durability. Cooling by water is a conventional approach for PEMFC. Balance between optimal operating temperature, temperature uniformity and fast cooling response is a continuous issue in the thermal management of PEMFC. Various cooling strategies have been proposed for water-cooled PEMFC and an approach to obtain a fast cooling response was tested by feeding the coolant at a high temperature. In this paper, the operating behaviour was characterized from the perspectives of temperature profiles, mean temperature difference, and cooling response time. A 2.4 kW water-cooled PEMFC was used and the electrical load ranged from 40 A-90 A. The operating coolant temperature was set to 50 °C where the maximum stack operating temperature is 60 °C. The stack temperature profiles, cooling response time, mean temperature difference and cooling rates to the load variation was analysed. The analysis showed that the strategy allowed a fast cooling response especially at high current densities, but it also promotes a large temperature gradient across the stack.

Original languageEnglish
JournalJournal of the Energy Institute
DOIs
Publication statusAccepted/In press - 20 May 2016

Fingerprint

dynamic loads
Proton exchange membrane fuel cells (PEMFC)
Dynamic loads
temperature profiles
fuel cells
membranes
Cooling
cooling
protons
electrolytes
polymers
temperature gradients
Temperature
coolants
operating temperature
Coolants
water
Water
electric power
durability

Keywords

  • Cooling response time
  • Load demand
  • PEMFC
  • Temperature uniformity
  • Water cooled

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this

Effect of dynamic load on the temperature profiles and cooling response time of a proton exchange membrane fuel cell. / Mohamed, Wan Ahmad Najmi Wan; Talib, Siti Fatimah Abu; Zakaria, Irnie Azlin; Mamat, Aman Mohd Ihsan; Wan Daud, Wan Ramli.

In: Journal of the Energy Institute, 20.05.2016.

Research output: Contribution to journalArticle

Mohamed, Wan Ahmad Najmi Wan ; Talib, Siti Fatimah Abu ; Zakaria, Irnie Azlin ; Mamat, Aman Mohd Ihsan ; Wan Daud, Wan Ramli. / Effect of dynamic load on the temperature profiles and cooling response time of a proton exchange membrane fuel cell. In: Journal of the Energy Institute. 2016.
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