System analysis of a protonic ceramic fuel cell and gas turbine hybrid system with methanol reformer

Sasmoko, Sheng Wei Lee, Mallikarjun Bhavanari, Widya Wijayanti, Nafisah Osman, Chung Jen Tseng

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The performance of a methanol-fed protonic ceramic fuel cell (PCFC)/gas turbine (GT) hybrid system is investigated in this work. To build the system, Thermolib software is employed with input parameters obtained from references. Effects of air stoichiometry on system performance are analyzed. Results show that, as air stoichiometry is increased, the reformer temperature and CO concentration decrease, while H2 concentration increases. High air stoichiometry decreases PCFC temperature and performance. GT output power increases with increasing air flow. But, the power consumption by compressor also increases. Overall, to achieve higher system efficiency for this hybrid system, the optimum values of air stoichiometry are from 2.7 to 2.9. An additional heat recovery steam generator can also improve the overall system efficiency from 66.5% to 71.7%. This work helps in understanding the modeling and optimum functioning parameters of high power generation systems.

Original languageEnglish
Pages (from-to)11421-11430
Number of pages10
JournalInternational Journal of Hydrogen Energy
Volume48
Issue number30
DOIs
StatePublished - 8 Apr 2023

Keywords

  • Air stoichiometry
  • Combined cycle
  • Methanol
  • Modeling and simulations
  • Protonic ceramic fuel cells

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