On the Local Heat Release Rate in a Combustion Chamber of Gas Turbine

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  • ガスタービン用燃焼室中の局所熱発生率
  • ガス タービン ヨウ ネンショウシツ チュウ ノ キョクショ ネッパツセイリツ

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Abstract

This paper deals with the theoretical analys's of one dimensional steady flow in a combustion chamber of gas turbine. In this study, the following were assumed : (1) The liquid fuel drops and combustion gas stream have a same velocity. (2) The law of combustion of single droplet is adopted to the combustion rate of fuel spray. (3) The combustion is not influenced by the condition of combustion gas stream. By using above three assumptions and the analysis which is analogous to Shapiro and Erickson's method(7), the total heat release rate, the local heat release rate, the temperature- and velocity-distributions in the direction of gas flow were calculated. In this study, it is found that the local heat release rate rapidly increases, but the temperature and velocity of combustion gas do not increase so rapidly as the local heat release rate and these values decrease after they become maximum. And the obtained local heat release rate has a similar form to the assumption that was reported in the previous papers(3)(4).

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