Demonstration test of DME-fueled chemically recuperated gas turbine

Takao Nakagaki, Yukio Ohashi, Takeo Takahashi, Susumu Yamanaka, Junichi Sato, Kazuhiro Sasabe, Tsunenori Watanabe

    Research output: Contribution to journalArticle

    Abstract

    Chemically Recuperated Gas Turbine (CRGT) is an advanced GT cycle that can increase power generation efficiency by recovering the exhaust heat with endothermic reaction of steam reforming. The CRGT fueled by Dimethyl Ether (DME) was demonstrated using 30 kW Micro GT (MGT) and accomplished both 10% reduction of fuel consumption compared with steam injected GT cycle and NOx- emission level of less than 10 ppm. Alternative fuel nozzle had concentric double pipe, one of which was designed to burn DME directly with diffusive combustion, and the other was premixed combustion of low-BTU reformed gas. The reformer, which was designed to fit into the MGT consisted of 96 SS 316-tubes filled with Pt catalyst and alumina balls, top and bottom headers and rectangular duct, recovered 15.3 kW heat from exhaust gas and increase heating value by 7.9%.

    Original languageEnglish
    Pages (from-to)513-514
    Number of pages2
    JournalNihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
    Volume75
    Issue number751
    Publication statusPublished - 2009 Mar

    Fingerprint

    gas turbines
    steam
    Gas turbines
    Ethers
    ethers
    Demonstrations
    endothermic reactions
    headers
    heat
    fuel consumption
    cycles
    exhaust gases
    Alternative fuels
    Steam reforming
    Exhaust gases
    ducts
    Fuel consumption
    Ducts
    nozzles
    Power generation

    Keywords

    • Cogeneration System
    • Micro Gas Turbine
    • Steam Injection
    • Steam Reforming

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Condensed Matter Physics

    Cite this

    Demonstration test of DME-fueled chemically recuperated gas turbine. / Nakagaki, Takao; Ohashi, Yukio; Takahashi, Takeo; Yamanaka, Susumu; Sato, Junichi; Sasabe, Kazuhiro; Watanabe, Tsunenori.

    In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 75, No. 751, 03.2009, p. 513-514.

    Research output: Contribution to journalArticle

    Nakagaki, Takao ; Ohashi, Yukio ; Takahashi, Takeo ; Yamanaka, Susumu ; Sato, Junichi ; Sasabe, Kazuhiro ; Watanabe, Tsunenori. / Demonstration test of DME-fueled chemically recuperated gas turbine. In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B. 2009 ; Vol. 75, No. 751. pp. 513-514.
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    abstract = "Chemically Recuperated Gas Turbine (CRGT) is an advanced GT cycle that can increase power generation efficiency by recovering the exhaust heat with endothermic reaction of steam reforming. The CRGT fueled by Dimethyl Ether (DME) was demonstrated using 30 kW Micro GT (MGT) and accomplished both 10{\%} reduction of fuel consumption compared with steam injected GT cycle and NOx- emission level of less than 10 ppm. Alternative fuel nozzle had concentric double pipe, one of which was designed to burn DME directly with diffusive combustion, and the other was premixed combustion of low-BTU reformed gas. The reformer, which was designed to fit into the MGT consisted of 96 SS 316-tubes filled with Pt catalyst and alumina balls, top and bottom headers and rectangular duct, recovered 15.3 kW heat from exhaust gas and increase heating value by 7.9{\%}.",
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    AU - Sato, Junichi

    AU - Sasabe, Kazuhiro

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