本文已被：浏览 479次 下载 375次
中文摘要: 为了探究喷嘴与燃烧室壁面安装孔间的缝隙对微型燃气轮机燃烧室流动及燃烧特性的影响，运用三维数值计算软件，对30 kW微型燃气轮机燃烧室在不同面积缝隙下的燃烧过程进行了数值计算，得到了燃烧室内的流场及温度场，并对比分析了燃烧室各处的气体流量分配、燃烧室内部温度分布以及污染物排放量。计算结果表明:缝隙面积的变化对燃烧室内气量分配的影响是全局性的，随着缝隙面积的增大，缝隙内的气体流量增加，燃烧室其它各处的流量则相应减小。在贫燃的条件下，这一过程使得燃烧室内部的整体温度逐渐减低，随之C0的排放量小幅增大。此外，一定范围内的缝隙能够在降低燃烧室整体温度的同时维持火焰形态，有效降低NOx的排放量。
Abstract:In order to explore the effect of gap between nozzle and liner on the flow and combustion characteristics in the combustor of
micro gas turbine, the combustion process with various areas of gap was numerical investigated by using three-dimensional numerical
calculation software. The flow and combustion fields were obtained and the flow allocation, temperature distribution and emissions were
analysed. The results show that the effect of gap is global. With the increase of gap area, the flow allocation of gap rises and the overall temperature in the combustor decreases. In this process, the CO emission increase slightly. With a certain area of gap, the NOx emission can be reduced effectively.
keywords: micro gas turbine combustor nozzle gap
文章编号： 中图分类号：TK474.9 文献标志码：
基金项目:国家863计划项目（2014AA052803 )
| 作者 | 单位 |
| 刘闳钊 | 上海交通大学 机械与动力工程学院，上海 200240 |
| 王玉璋 | 上海交通大学 机械与动力工程学院，上海 200240 |
| 高慧峰 | 上海航天能源股份有限公司，上海 201201 |
| 翁史烈 | 上海交通大学 机械与动力工程学院，上海 200240 |
引用文本：
作者.题名[J].刊名,出版年份,卷号(期号):起止页码.
[2]KIM K M, PARK J S, DONG H L, et al. Analysis of conjugated heat transfer, stress and failure in a gas turbine blade with circular cooling passages[J]. Engineering Failure Analysis, 2011, 18(4):1212-1222.
作者.题名[J].刊名,出版年份,卷号(期号):起止页码.
[2]KIM K M, PARK J S, DONG H L, et al. Analysis of conjugated heat transfer, stress and failure in a gas turbine blade with circular cooling passages[J]. Engineering Failure Analysis, 2011, 18(4):1212-1222.