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Modeling and Full-Scale Tests of Vortex Plasma-Fuel Systems for Igniting High-Ash Power Plant Coal

机译:燃用高灰电厂煤的涡流等离子燃料系统的建模和全面测试

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摘要

The processes of supplying pulverized-coal fuel into a boiler equipped with plasma-fuel systems and its combustion in the furnace of this boiler are investigated. The results obtained from 3D modeling of conventional coal combustion processes and its firing with plasma-assisted activation of combustion in the furnace space are presented. The plasma-fuel system with air mixture supplied through a scroll is numerically investigated. The dependence of the swirled air mixture flow trajectory in the vortex plasma-fuel system on the scroll rotation angle is revealed, and the optimal rotation angle at which stable plasma-assisted ignition of pulverized coal flame is achieved is determined.
机译:研究了向装有等离子燃料系统的锅炉中供给煤粉燃料的过程及其在该锅炉的炉中燃烧的过程。给出了从常规煤燃烧过程的3D建模以及在炉膛空间中进行等离子辅助燃烧燃烧的结果。对通过涡旋供应空气混合物的等离子燃料系统进行了数值研究。揭示了涡旋等离子燃料系统中涡流混合气流动轨迹与涡旋旋转角的关系,并确定了实现稳定的等离子辅助粉煤燃烧点火的最佳旋转角。

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  • 来源
    《Thermal engineering》 |2015年第6期|442-451|共10页
  • 作者单位

    Siberian Federal University, ul. Kirenskogo 26, Krasnoyarsk, 660074 Russia,Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 1, Novosibirsk, 630090 Russia,Research Institute of Experimental and Theoretical Physics, ul. Tole Bi 96a, Almaty, 050010 Kazakhstan;

    Research Institute of Experimental and Theoretical Physics, ul. Tole Bi 96a, Almaty, 050010 Kazakhstan;

    Sectoral Center of Plasma-Energy Technologies of RAO UES of Russia, ul. Pushkina 33, Gusinoozersk, Selenga Region, Buryat Republic, 671160 Russia;

    Siberian Federal University, ul. Kirenskogo 26, Krasnoyarsk, 660074 Russia,Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 1, Novosibirsk, 630090 Russia;

    Siberian Federal University, ul. Kirenskogo 26, Krasnoyarsk, 660074 Russia,Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 1, Novosibirsk, 630090 Russia;

    Siberian Federal University, ul. Kirenskogo 26, Krasnoyarsk, 660074 Russia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    combustion; pulverized-coal fuel; thermochemical treatment; plasma; boiler furnace; numerical modeling;

    机译:燃烧;煤粉燃料;热化学处理;等离子体;锅炉炉数值模拟;

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