Mitsubishi Heavy Industries Technical Review
    Vol. 50 No. 1 (2013)   New Products & Technologies
    Technical Papers

    Development of Low NOx Combustion System with EGR for 1700°C-class Gas Turbine

    Yusuke Tanaka,
    Masakazu Nose,
    Mitsuhiro Nakao,
    Keijiro Saitoh,
    Eisaku Ito,
    Keizo Tsukagoshi

    Gas-turbine combined-cycle power generation is expected to lead to a long-term extension of power-generation markets all over the world by providing clean and economic thermal power plants. Mitsubishi Heavy Industries (MHI) is developing technologies that will be applied to a 1700°C-class gas turbine as part of a national project in order to pursue much higher efficiency, and has been promoting the development of a combustor with an exhaust gas recirculation (EGR) system for achievement of low NOx combustion systems for ultrahigh-temperature gas turbines. In 2011, the last year of development research of technologies for practical application, MHI constructed a high-pressure combustion test device simulating exhaust gas recirculation, and obtained test results that attained the development target of NOx concentration of 50 ppm or less with exhaust gas recirculation. This document describes a high-pressure combustion test that simulates exhaust gas recirculation.