伝達マトリクス法による管内燃焼器から発生する燃焼音の予測

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タイトル別名
  • Numerical Estimation of Noise Emitted by Industrial Tube Burner by Transfer Matrix Method.
  • デンタツ マトリクスホウ ニヨル カンナイ ネンショウキ カラ ハッセイスル

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抄録

To estimate the noise emitted by an industrial tube burner, numerical and experimental analyses are carried out. Firstly, combustion noise was measured and the overall characteristic of the noise is examined. Secondly, a one-dimensional noise analysis programed with a transfer matrix method was used. A lot of effort has been made to analyze the noise from home use combustion devices considering the temperature distribution inside the tube. In this study, the distribution of heat generation rate is taken into account to obtain sufficient accuracy for the noise at the exhaust tube outlet, in addition to the conventional temperature distribution.<BR>The distribution of heat generation rate is numerically analyzed considering the heat transfer at the inner and outer surface and the radiation at the outer surface of the combustion tube. As a result, the theoretical results show relatively good agreement with the experimental results and the analytical method employed in this study has been confirmed to be practical for noise analysis of industrial tube burners.

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