仪器网

欢迎您: 免费注册 仪器双拼网址:www.yiqi.com
首页-资讯-资料-产品-求购-招标-品牌-展会-行业应用-社区-供应商手机版
官方微信
中国仪器网• 行业应用
仪器网/ 行业应用/ 解决方案/ 高速直喷柴油燃烧系统潜在的碳烟和一氧化碳减排方法

高速直喷柴油燃烧系统潜在的碳烟和一氧化碳减排方法

点击这里给我发消息
内容节点
概述
实验/设备条件
样品提取
实验/操作方法
实验结果/结论
仪器/耗材清单
The current direction for Diesel combustion system
development is towards homogenization, in order to
reduce particulate and NOx emissions. However, a
strong increase of carbon monoxide emissions (CO) is
frequently noted in combination with enhanced
homogenization.
Therefore, the current investigation focuses on a
detailed analysis of the particulate - CO trade-off using a
laser-optical and multidimensional CFD investigation of
the combustion process of a swirl HSDI system. The
CFD methodology involves reduced kinetics for soot
formation and oxidation and a three-step CO model.
These models are validated by a detailed comparison to
optical measurements of flow, spray penetration and the
spatial distribution of soot, temperature and oxygen
concentration.
The results obtained show that high concentrations of
CO occur as an intermediate combustion reaction
product. Subsequently, CO and soot are oxidized in
large areas of the combustion chamber. In part load
operation, CO emissions are mainly caused by dilution
effects in the early phases of combustion. However, the
engines soot emissions are caused by insufficient
oxidization.
Soot generation and oxidation are found to be strongly
impacted by the slight non-homogeneity of the swirl
motion. The gaseous emissions are not affected by the
small differences in local flow, which are outlined further
in the text. 德国LaVision PIV/PLIF粒子成像测速场仪 PLIF平面激光诱导荧光火焰燃烧检测系统 激光诱导白炽光烟雾粒子成像分析仪(LII)
相关产品
相关解决方案
热门解决方案
最新解决方案
在线留言
官方微信

仪器网微信服务号

扫码获取最新信息


仪器网官方订阅号

扫码获取最新信息

在线客服

咨询客服

在线客服
工作日:  9:00-18:00
联系客服 企业专属客服
电话客服:  400-822-6768
工作日:  9:00-18:00
订阅商机

仪采招微信公众号

采购信息一键获取海量商机轻松掌控