A study on gas seal configuration for molten carbonate fuel cells (2nd report, experimental examination of gas seal configuration)

Takao Nakagaki, Hideaki Nameki, Haruhiko Hirata, Michio Hori

Research output: Contribution to journalArticle


A reactant gas seal is one of critical issues to achieve the reliability of the MCFC stack which is a key equipment in MCFC power plant. The wet-gas seal with carbonate melted at operating temperature (650°C) is generally expected to be suitable for such a seal. We develop the wet seal configuration composed of thin sheet metal parts to be cost-competitive with other power plants. In this report, the proposed configuration of wet-gas seal using thin sheet metal parts is produced for trial, which is assembled in single cells. The leak rates from wet seals were examined under the condition of MCFC operating temperature. Then, the superior seal performance was found and it is confirmed that the wet seal configuration composed of thin sheet is reliable.

Original languageEnglish
Pages (from-to)1273-1280
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Issue number668
Publication statusPublished - 2002 Apr



  • Contact problem
  • Electrochemistry
  • Gaseous fuel
  • High temperature
  • Laminated construction
  • Molten carbonate fuel cells
  • Sheet metal
  • Wet gas seal

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering

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