Dynamic modeling of Wärtsilä 5 kW SOFC system

Masoud Rokni, Jukka Ylijoki, Erkko Fontell, Olli Tiihonen, Markku Hänninen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    6 Citations (Scopus)


    The dynamic modelling of the 5kW SOFC system with all balance of plants components, valves, measurement devices, heat recovery and control systems are presented. The modelling is based on the actual test-rig designed and constructed recently by Wärtsilä Corporation. The main purpose of such dynamic modelling is to collect basic understanding of system behaviour during different operational points such as load changes, shut-down, start-up, air-fuel ratio, etc. Such information is essential before designing a complete system which is going to operate stand-alone. The results from dynamic modelling help to prevent some un-foreseen characteristic that may harm the system. During the transient behaviour of the SOFC system, one is also interested in controlling the system by some key parameters such as stack temperature, pre-reformer operational temperature and burner temperature. The study describes basic design criteria and properties of the test system. Characteristics of major sub-systems such as fuel and air supply, steam supply, exhaust heat recovery, back-up power, power electronics and control system are also explained.
    Original languageEnglish
    Title of host publicationSolid Oxide Fuel Cells (SOFC-IX)
    Subtitle of host publicationProceedings of the International Symposium
    PublisherElectrochemical Society ECS
    Volume1: Cells, stacks, and systems
    ISBN (Print)1-56677-465-9
    Publication statusPublished - 2005
    MoE publication typeA4 Article in a conference publication
    Event9th International Symposium on Solid Oxide Fuel Cells, SOFC-IX - Quebec City, Canada
    Duration: 15 May 200520 May 2005
    Conference number: 9

    Publication series

    SeriesECS Proceedings Volumes


    Conference9th International Symposium on Solid Oxide Fuel Cells, SOFC-IX
    Abbreviated titleSOFC-IX
    CityQuebec City


    • SOFC
    • fuel cells
    • simulation
    • modeling


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