上海交通大学学报

上海交通大学学报 >

2020 , Vol. 54 >Issue 7: 756 - 764

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2019.132

学报（中文）

燃料分级比例对双燃料燃烧室燃烧性能的影响

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  • 沈阳航空航天大学 辽宁省航空推进系统先进测试技术重点实验室， 沈阳 110136

网络出版日期: 2020-07-31

基金资助

辽宁省自然科学基金（20180550358），航空科学基金（20170354001）资助项目

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Influence of Fuel-Staging Ratio on Combustion Performance of Dual Fuel Combustor

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  • Liaoning Key Laboratory of Advanced Testing Technology for Aeronautical Propulsion System, Shenyang Aerospace University, Shenyang 110136, China

Online published: 2020-07-31

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摘要

通过数值与试验相结合的方法对一种双燃料低污染燃烧室的流场和燃烧特性进行了研究.利用Fluent软件对该低污染燃烧室进行了数值模拟，对燃烧室的点火、熄火特性进行了试验测试，在燃烧室进口参数一定的情况下，改变值班级和主燃级燃料能量的分配比例，对比分析主燃级能量比例对燃烧特性的影响.结果表明，所研究的低污染燃烧室头部存在中心回流区、角落回流区以及唇口回流区；燃烧室的点火、熄火特性满足要求；燃料分级比例对污染物排放具有较大的影响，在双燃料的设计点和单独使用气体燃料时，CO和NOx排放均达到了燃烧室的设计要求.

关键词： 双燃料燃烧室; 中心分级; 低排放; 燃料分级比例

本文引用格式

刘爱虢, 陈炫任, 杨宇东, 陈雷, 王成军 . 燃料分级比例对双燃料燃烧室燃烧性能的影响[J]. 上海交通大学学报, 2020 , 54(7) : 756 -764 . DOI: 10.16183/j.cnki.jsjtu.2019.132

Abstract

The flow field and combustion characteristics of a dual fuel low pollution combustor were studied by using numerical and experimental methods. The low-pollution combustor was numerically simulated by using Fluent software. The ignition and extinguishing characteristics of the combustor were tested experimentally. The fuel energy distribution ratio of duty class and main combustion stage was changed when the inlet parameters of the combustor were fixed. The influence of the energy ratio of the main combustion stage on combustion characteristics was compared and analyzed. The results show that there is a central reflux zone, a corner reflux zone, and a lip reflux zone in the head of the low-pollution combustor studied. The ignition and extinguishing characteristics of the combustor meet the requirements and the fuel classification ratio has a great impact on pollutant emissions. When the dual fuel design point and the gas fuel are used alone, CO and NOx emissions meet the design requirements of the combustor.

Key words： dual fuel combustor; central classification; low emission; fuel classification ratio

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