• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Combustion Science and Technology >Effect of Swirl Strength on the Flow and Combustion Characteristics of Pulverized Biomass Flames
【24h】

Effect of Swirl Strength on the Flow and Combustion Characteristics of Pulverized Biomass Flames

机译：旋流强度对粉碎生物质火焰流动和燃烧特性的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This article reports on the effect of swirl intensity on the flow and combustion characteristics of pulverized olive waste (OW) burning. Numerical simulations are carried out using the computational fluid dynamics (CFD) Commercial Software "Fluent ANSYS14" by choosing appropriate model parameters. The biomass furnace consists of a vertical cylinder equipped with a swirling co-flow injection burner. The particles of pulverized biomass (OW) are injected transversally into the furnace just near the co-flow exit, via four square-shaped injection nozzles. The non-premixed combustion model with mixture fraction/PDF model for turbulence-chemistry interactions is used. Standard k-epsilon turbulence model closure, discrete phase model (DPM) for tracking the motion of individual particle and P-1 radiation model for flame radiation inside the combustor are used in the numerical simulation. Four different swirl numbers S-n = 0.38, 0.95, 1.2 and 1.42 are used in this study in order to investigate the swirl intensity effect on the flow and combustion behavior. The results showed that the flow and the flame characteristics such as axial velocity, streamlines, gas temperature, flame length and CO2, CO and O-2 concentrations are affected by the swirl intensity.
机译：本文报告了旋流强度对粉碎橄榄废物（OW）燃烧的流动和燃烧特性的影响。通过选择适当的模型参数，使用计算流体动力学（CFD）商业软件“流畅的ANSYS14”进行数值模拟。生物质炉由配备有旋流循环喷射燃烧器的垂直圆筒组成。粉碎生物质（OW）的颗粒刚刚进入炉中，刚刚通过四个方形的注射喷嘴靠近流动出口附近。使用具有混合型馏分/ PDF模型的非预混合燃烧模型。用于跟踪用于跟踪燃烧器内部火焰辐射的单个粒子和P-1辐射模型的动作的离散相模型（DPM）用于数值模拟。在本研究中使用四个不同的漩涡号S-N = 0.38,0.95,1.2和1.42，以研究旋流强度对流动和燃烧行为的影响。结果表明，流量和火焰特性如轴向速度，流线，气体温度，火焰长度和CO2，CO和O-2浓度受旋流强度的影响。

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