Development of intermediate temperature SOFC module and system

Jun Akikusa, Takashi Yamada, Takafumi Kotani, Naoya Murakami, Taner Akbay, Akihiko Hasegawa, Masaharu Yamada, Norikazu Komada, Sin Nakamura, Norihisa Chitose, Katsuya Hirata, Shigeru Sato, Takashi Miyazawa, Makoto Shibata, Kei Hosoi, Futoshi Nishiwaki, Toru Inagaki, Jiro Kanou, Satoshi Ujiie, Takahiro MatsunamiHiroaki Nakajima, Junya Nishi, Tsunehisa Sasaki, Hiroyuki Yoshida, Koji Hashino, Mitsunobu Kawano, Satoru Yamasaki, Yusaku Takita, Tatsumi Ishihara

    Research output: Contribution to conferencePaperpeer-review

    5 Citations (Scopus)


    The third-generation 1kWe-class module was developed with an automatic control system. A conversion efficiency of 48% [AC/LHV] was achieved with an exhaust heat recovery unit. An endurance test using the third-generation 1 kWe module has been done for over 1000 hours and no degradation in the power generation performance was observed. In parallel, a single cell unit, which includes one cell and two metallic separators, was tested for over 6000 hrs and the degradation rate of the terminal voltage was found to be 1 - 2%/1000 hr. For scale up, a triple-stack 3 kWe module was developed. A partial load as well as excess loads on the module were tested and the output power of 1 - 5 kWe was attained with thermally self-sustainable conditions. A high efficiency of 55% [DC/LHV] was obtained under stable operation. On-going research of the fourth-generation 1 kWe module has resulted in the conversion efficiency of 58% [DC/LHV].

    Original languageEnglish
    Number of pages11
    Publication statusPublished - 2005
    Event9th International Symposium on Solid Oxide Fuel Cells, SOFC IX - Quebec, Canada
    Duration: May 15 2005May 20 2005


    Other9th International Symposium on Solid Oxide Fuel Cells, SOFC IX

    All Science Journal Classification (ASJC) codes

    • Engineering(all)


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