High Pressure Test Results of a Catalytically Assisted Ceramic Combustor for a Gas Turbine

Journal of Engineering for Gas Turbines and Power - Tập 121 Số 3 - Trang 422-428 - 1999
Yasushi Ozawa1, Yoshihisa Tochihara1, Nanako Mori1, Isao Yuri1, Tadahiro Kanazawa2, Katsuhiro Sagimori2
1Central Research Institute of Electric Power Industry, 2-6-1 Nagasaka, Yokosuka, Kanagawa 240-0196, Japan
2The Kansai Electric Power Company, Inc. Amagasaki, Hyogo 661-0974, Japan

Tóm tắt

A catalytically assisted ceramic combustor for a gas turbine was designed to achieve low NOx emission under 5 ppm at a combustor outlet temperature over 1300°C. This combustor is composed of a burner system and a ceramic liner behind the burner system. The burner system consists of 6 catalytic combustor segments and 6 premixing nozzles, which are arranged in parallel and alternately. The ceramic liner is made up of the layer of outer metal wall, ceramic fiber, and inner ceramic tiles. Fuel flow rates for the catalysts and the premixing nozzles are controlled independently. Catalytic combustion temperature is controlled under 1000°C, premixed gas is injected from the premixing nozzles to the catalytic combustion gas and lean premixed combustion over 1300°C is carried out in the ceramic liner. This system was designed to avoid catalytic deactivation at high temperature and thermal and mechanical shock fracture of the honeycomb monolith of the catalyst. A combustor for a 10 MW class, multican type gas turbine was tested under high pressure conditions using LNG fuel. Measurements of emission, temperature, etc. were made to evaluate combustor performance under various combustion temperatures and pressures. This paper presents the design features and the test results of this combustor.

Từ khóa


Tài liệu tham khảo

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Thông tin
Thông tin xuất bản

Journal of Engineering for Gas Turbines and Power

Tập 121 Số 3

422-428

Thông tin tác giả