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Operational experience of a 1 kW PAFC stack

Author

Listed:
  • Ghouse, M.
  • Abaoud, H.
  • Al-Boeiz, A.

Abstract

A 1 kW phosphoric acid fuel-cell (PAFC) stack with 30 cells, was designed, fabricated, assembled with "in-house" developed components at ERI, KACST, and successfully operated for 250 h. The stack was operated at 180°C, 1 bar, using commercial H2/CO2 gas and air. The electrical output power generated by the stack was ~1 kW (20.5x50 A), with a current density of 125 mA/cm2 at an average cell voltage of 0.7 V. From the results of the successful operation of the stack, it was found that the stack was stable during the operation and the heat generated in the stack was sufficient to retain the temperature at 175 to 180°C without any external heating. To cool the stack, three cooling plates were used in the stack. Insulation was applied to the stack to get a more uniform temperature. The water formed in the stack was collected through the H2 gas outlets and air manifolds during the operation of the stack. As the temperature of the stack at the centre was slightly high, it is recommended introducing two more cooling-plates to achieve a more uniform temperature and better stack performance.

Suggested Citation

  • Ghouse, M. & Abaoud, H. & Al-Boeiz, A., 2000. "Operational experience of a 1 kW PAFC stack," Applied Energy, Elsevier, vol. 65(1-4), pages 303-314, April.
    • Handle: RePEc:eee:appene:v:65:y:2000:i:1-4:p:303-314
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    Cited by:

    1. Rahman, Syed Masiur & Khondaker, A.N., 2012. "Mitigation measures to reduce greenhouse gas emissions and enhance carbon capture and storage in Saudi Arabia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 16(5), pages 2446-2460.
    2. Alawaji, Saleh H., 2001. "Evaluation of solar energy research and its applications in Saudi Arabia -- 20 years of experience," Renewable and Sustainable Energy Reviews, Elsevier, vol. 5(1), pages 59-77, March.

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