E212 INFLUENCE OF TWO-STAGE AIR INJECTION CONDITIONS ON NOx AND UNBURNED CARBON OF SUB-BITUMINOUS COAL COMBUSTION

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概要

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• Because of large recoverable reserves, sub-bituminous coal is an important energy resources. The disadvantage of sub-bituminous coal is that it contains more than 20% moisture. This makes ignition less efficient. And combustion flame became diffused. Both emissions of NOx and unburned carbon in fly ash become high. We have already shown that these emissions can be reduced by adjusting the air injection conditions from the burner to better suit sub-bituminous coal combustion. However, the reduction is insufficient compared with bituminous coal combustion. In this investigation, influence of two-stage air injection conditions on NOx and unburned carbon concentration in fly ash was studied and the optimum air injection conditions necessary in order to reduce those emissions were clarified.

• 一般社団法人日本機械学会の論文

著者

• Higashiyama K.

  Criepi (central Research Institute Of Electric Power Industry)

• Ikeda M.

  CRIEPI (Central Research Institute of Electric Power Industry)

• Makino H.

  CRIEPI (Central Research Institute of Electric Power Industry)

• Morinaga H.

  CRIEPI (Central Research Institute of Electric Power Industry)

関連論文

• E212 INFLUENCE OF TWO-STAGE AIR INJECTION CONDITIONS ON NOx AND UNBURNED CARBON OF SUB-BITUMINOUS COAL COMBUSTION

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