首页> 外文期刊>Clean air >Complex Chemistry Simulation Of Flox~r: Flameless Oxidation Combustion
【24h】

Complex Chemistry Simulation Of Flox~r: Flameless Oxidation Combustion

机译:Flox〜r的复杂化学模拟:无焰氧化燃烧

获取原文
获取原文并翻译 | 示例
           

摘要

The major concern of the present paper is the numerical simulation of the flow and combustion of methane in a FLOX~R combustor at high-pressure operating conditions. The purpose is to investigate the ability of the FLOX~R concept to be used in a (micro) gas turbine combustor. FLOX~R combustion is a highly turbulent and high-velocity combustion process, which is strongly dominated by chemical nonequilibrium effects. In a turbulent flow, the key aspects of a combustion model are twofold: (i) chemistry and (ii) turbulence/chemistry interaction. In the FLOX~R combustion, we find that both physical mechanisms are of equal importance. Throughout our simulations, we use the complex finite rate chemistry scheme GRI3.0 for methane and a simple partially stirred reactor (PaSR) model to account for the turbulence effect on the combustion. The computational results agree very well with experimental data obtained at DLR test facilities. For a pressure level of 20 bar, computational results for a burner load of 417 kW and an air-to-fuel ratio of λ = 2.16 are presented and compared to experimental data.
机译:本文的主要关注点是在高压运行条件下,FLOX〜R燃烧室中甲烷的流动和燃烧的数值模拟。目的是研究FLOX_R概念在(微型)燃气轮机燃烧室中使用的能力。 FLOX〜R燃烧是一种湍流和高速燃烧过程,在化学非平衡效应中占主导地位。在湍流中,燃烧模型的关键方面是双重的:(i)化学和(ii)湍流/化学相互作用。在FLOX〜R燃烧中,我们发现两种物理机制同等重要。在整个模拟过程中,我们对甲烷使用复杂的有限速率化学方案GRI3.0和简单的部分搅拌反应器(PaSR)模型来说明湍流对燃烧的影响。计算结果与DLR测试机构获得的实验数据非常吻合。对于20 bar的压力水平,给出了417 kW燃烧器负载和λ= 2.16的空燃比的计算结果,并将其与实验数据进行了比较。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号