Instability in lean premixed combustors

被引：77

作者：

Dowling, AP ^{[1
]}

Hubbard, S ^{[1
]}

机构：

[1] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART A-JOURNAL OF POWER AND ENERGY | 2000年 / 214卷 / A4期

关键词：

combustion instability; acoustics; lean premixed combustion;

D O I：

10.1243/0957650001537903

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A generalized acoustic equation is used to identify the mechanisms driving combustion instability. The relationship between the unsteady rate of heat release and the flow is found to influence significantly the frequency of oscillation. A kinematic flame model is reviewed and used to describe the unsteady combustion in a premixed ducted flame and in a typical lean premixed industrial gas turbine. Comparison is made between theory and experiment.

引用

页码：317 / 332

页数：16

共 19 条

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JONES B, 1974, REHEAT BUZZ FILM

[12] THERMOACOUSTIC OSCILLATIONS IN COMBUSTION-CHAMBERS OF GAS-TURBINES [J].