Modelling and Dynamic Studies of the Second Generation Oxy-Fired CFB Boiler

Hannu Mikkonen, Jari Lappalainen, Reijo Kuivalainen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

    Abstract

    Climate change due the temperature increase in the world is one of the biggest challenges for the mankind. The need to develop low carbon power production is obvious already nowadays and specially in the future. In the EU 7th Framework Program's project O2GEN (Optimization of Oxygenbased CFBC Technology with CO2 capture), modelling plays a major role in evaluation of an oxy-firing and circulated fluidized bed based solution for low carbon energy production. In the earlier, 1st generation CCS capable plant concept, the conditions in the oxidant streams and furnace side were close to air-firing conditions, and the boiler could continuously produce electricity both in air and oxy modes. This paper deals with the 2nd generation concept, which major differences and improvements include duplication of the plant power capacity, increasing the oxygen content up to 40 mol% in the oxidant streams, focusing on continuous operation only in oxy-firing mode, and heat integration to increase the overall efficiency. This paper presents the 2nd generation concept modelling, simulation results as well as the first implications on the dynamic behavior, illustrated with a firing mode switching case.
    Original languageEnglish
    Title of host publicationProceedings of the 22nd international conference on fluidized bed conversion, 14-17 June 2015, Turku, Finland
    PublisherÅbo Akademi
    Pages1255-1263
    Number of pages9
    Volume2
    ISBN (Print)9789521232220
    Publication statusPublished - 2015
    MoE publication typeB3 Non-refereed article in conference proceedings
    Event22nd International Conference on Fluidized Bed Conversion, FBC 2015 - Turku, Finland
    Duration: 14 Jun 201517 Jun 2015
    Conference number: 22

    Conference

    Conference22nd International Conference on Fluidized Bed Conversion, FBC 2015
    Abbreviated titleFBC 2015
    CountryFinland
    CityTurku
    Period14/06/1517/06/15

    Fingerprint

    Oxidants
    Boilers
    Boiler firing
    Carbon
    Air
    Climate change
    Fluidized beds
    Power plants
    Furnaces
    Electricity
    Oxygen
    Computer simulation
    Temperature
    Hot Temperature

    Keywords

    • CFB
    • ASU
    • CPU
    • CCS
    • dynamic modelling
    • simulation
    • oxy-firing
    • firing mode switch
    • Apros

    Cite this

    Mikkonen, H., Lappalainen, J., & Kuivalainen, R. (2015). Modelling and Dynamic Studies of the Second Generation Oxy-Fired CFB Boiler. In Proceedings of the 22nd international conference on fluidized bed conversion, 14-17 June 2015, Turku, Finland (Vol. 2, pp. 1255-1263). Åbo Akademi.
    Mikkonen, Hannu ; Lappalainen, Jari ; Kuivalainen, Reijo. / Modelling and Dynamic Studies of the Second Generation Oxy-Fired CFB Boiler. Proceedings of the 22nd international conference on fluidized bed conversion, 14-17 June 2015, Turku, Finland. Vol. 2 Åbo Akademi, 2015. pp. 1255-1263
    @inproceedings{98c83b5fadd243d0847fb5c8211a6a10,
    title = "Modelling and Dynamic Studies of the Second Generation Oxy-Fired CFB Boiler",
    abstract = "Climate change due the temperature increase in the world is one of the biggest challenges for the mankind. The need to develop low carbon power production is obvious already nowadays and specially in the future. In the EU 7th Framework Program's project O2GEN (Optimization of Oxygenbased CFBC Technology with CO2 capture), modelling plays a major role in evaluation of an oxy-firing and circulated fluidized bed based solution for low carbon energy production. In the earlier, 1st generation CCS capable plant concept, the conditions in the oxidant streams and furnace side were close to air-firing conditions, and the boiler could continuously produce electricity both in air and oxy modes. This paper deals with the 2nd generation concept, which major differences and improvements include duplication of the plant power capacity, increasing the oxygen content up to 40 mol{\%} in the oxidant streams, focusing on continuous operation only in oxy-firing mode, and heat integration to increase the overall efficiency. This paper presents the 2nd generation concept modelling, simulation results as well as the first implications on the dynamic behavior, illustrated with a firing mode switching case.",
    keywords = "CFB, ASU, CPU, CCS, dynamic modelling, simulation, oxy-firing, firing mode switch, Apros",
    author = "Hannu Mikkonen and Jari Lappalainen and Reijo Kuivalainen",
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    year = "2015",
    language = "English",
    isbn = "9789521232220",
    volume = "2",
    pages = "1255--1263",
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    Mikkonen, H, Lappalainen, J & Kuivalainen, R 2015, Modelling and Dynamic Studies of the Second Generation Oxy-Fired CFB Boiler. in Proceedings of the 22nd international conference on fluidized bed conversion, 14-17 June 2015, Turku, Finland. vol. 2, Åbo Akademi, pp. 1255-1263, 22nd International Conference on Fluidized Bed Conversion, FBC 2015, Turku, Finland, 14/06/15.

    Modelling and Dynamic Studies of the Second Generation Oxy-Fired CFB Boiler. / Mikkonen, Hannu; Lappalainen, Jari; Kuivalainen, Reijo.

    Proceedings of the 22nd international conference on fluidized bed conversion, 14-17 June 2015, Turku, Finland. Vol. 2 Åbo Akademi, 2015. p. 1255-1263.

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

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    AU - Kuivalainen, Reijo

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    PY - 2015

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    N2 - Climate change due the temperature increase in the world is one of the biggest challenges for the mankind. The need to develop low carbon power production is obvious already nowadays and specially in the future. In the EU 7th Framework Program's project O2GEN (Optimization of Oxygenbased CFBC Technology with CO2 capture), modelling plays a major role in evaluation of an oxy-firing and circulated fluidized bed based solution for low carbon energy production. In the earlier, 1st generation CCS capable plant concept, the conditions in the oxidant streams and furnace side were close to air-firing conditions, and the boiler could continuously produce electricity both in air and oxy modes. This paper deals with the 2nd generation concept, which major differences and improvements include duplication of the plant power capacity, increasing the oxygen content up to 40 mol% in the oxidant streams, focusing on continuous operation only in oxy-firing mode, and heat integration to increase the overall efficiency. This paper presents the 2nd generation concept modelling, simulation results as well as the first implications on the dynamic behavior, illustrated with a firing mode switching case.

    AB - Climate change due the temperature increase in the world is one of the biggest challenges for the mankind. The need to develop low carbon power production is obvious already nowadays and specially in the future. In the EU 7th Framework Program's project O2GEN (Optimization of Oxygenbased CFBC Technology with CO2 capture), modelling plays a major role in evaluation of an oxy-firing and circulated fluidized bed based solution for low carbon energy production. In the earlier, 1st generation CCS capable plant concept, the conditions in the oxidant streams and furnace side were close to air-firing conditions, and the boiler could continuously produce electricity both in air and oxy modes. This paper deals with the 2nd generation concept, which major differences and improvements include duplication of the plant power capacity, increasing the oxygen content up to 40 mol% in the oxidant streams, focusing on continuous operation only in oxy-firing mode, and heat integration to increase the overall efficiency. This paper presents the 2nd generation concept modelling, simulation results as well as the first implications on the dynamic behavior, illustrated with a firing mode switching case.

    KW - CFB

    KW - ASU

    KW - CPU

    KW - CCS

    KW - dynamic modelling

    KW - simulation

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    KW - firing mode switch

    KW - Apros

    M3 - Conference article in proceedings

    SN - 9789521232220

    VL - 2

    SP - 1255

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    BT - Proceedings of the 22nd international conference on fluidized bed conversion, 14-17 June 2015, Turku, Finland

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    Mikkonen H, Lappalainen J, Kuivalainen R. Modelling and Dynamic Studies of the Second Generation Oxy-Fired CFB Boiler. In Proceedings of the 22nd international conference on fluidized bed conversion, 14-17 June 2015, Turku, Finland. Vol. 2. Åbo Akademi. 2015. p. 1255-1263