中国科学院工程热物理研究所,北京,100080
Published:2005
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TIAN Xue-qing, HUANG Wei-guang. Numerical Study of the Relationship between Pressure Exponent n and Combustor Exit Temperature[J]. 2005, 20(1).
DOI:
TIAN Xue-qing, HUANG Wei-guang. Numerical Study of the Relationship between Pressure Exponent n and Combustor Exit Temperature[J]. 2005, 20(1). DOI:
通过对两种不同类型的燃气轮机燃烧室的数值计算
研究了不同燃烧类型对燃气轮机燃烧效率模化试验中压力指数选取的影响
结果表明压力指数除受到燃料、余气系数等影响之外
燃烧类型对其也有很大影响。对于以碳氢化合物为燃料
化学动力学控制类型燃烧室模化中n值相对较大
范围为 1 .6~ 2 .0。当燃烧过程受扩散火焰控制时
n值相对较小
范围为 1 .0~ 1 .4
By numerical simulation of two different gas turbine combustors
the selection of pressure exponent n in combustion efficiency simulation test was investigated.It is suggested that for hydrocarbon fuel
the pressure exponent n may be selected in the range of 1.6~2.0
when the combustion process is reaction-controlled. When the combustion process is diffusion-controlled
the range of 1.0~1.4 is suggested.The result is useful for the model test of gas turbine combustors.
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