Therefore by regulating swirl number of combustor NO emission caw be reduced.
因此，适当调整燃烧室的旋流数可以降低NO排放。
The maximum value of swirl number in the flow sections is agreed with the simplified theoretical relation.
在旋流场截面中最大旋流数符合简化理论的分析关系。
The intake port performance (swirl number, flow coefficient) has an important effect on power, economy and emissions of diesel engine.
进气道性能(涡流强度、流量系数)对柴油机的动力性、经济性和排放有重要影响。
The effect of the secondary air swirl number on the number of particle impacts which affects slagging was studied to reduce slagging in utility boilers.
为了解决电站锅炉炉膛结渣的问题，研究了对结渣有重要影响的颗粒碰撞数受二次风旋流强度影响的规律。
The swirl number of secondary air has a great influence on the combustion. When swirl number is small(S<0.8), the fire is long, and may rush the back wall.
二次风旋流强度的变化对炉内燃烧影响较大，旋流数过小时（S<0.8），火焰将冲刷后墙；
The analyzes show that the effective method of reducing energy consumption was reducing swirl number or reducing the ratio of gas to liquid in mixed mediums.
分析可知，减少旋流器能耗的有效方法是降低旋数，或者减少混合介质中的气液比。
Helical port also produces swirl by airflow interaction of valve gap and cylinder wall, so swirl number depends on helical line direction of relevant cylinder center.
螺旋气道通过气门间隙与缸壁的气流相互作用也产生涡流，因此，涡流数取决于相应气缸中心的螺旋线方位。
A five hole probe is used for measuring the tangential Angle of flow, axial velocity, static pressure of flow and swirl number in the flow sections of the conveying system.
应用五孔感头测定沿程截面内气流的切向角、轴向速度、气流静压和旋流数的分布。
The effects of swirl number of primary swirler and radial swirler, area ratio and sleeve divergence angle on the cold flow field of double swirl air intake were investigated.
试验研究了主、径向涡流器旋流数、面积比、套筒扩张角等参数对双旋流进气装置冷态流场的影响。
The cooling flow rate have more effects on average nu number than rotating speed in this pre-swirl Angle.
该预旋角情况下，进气雷诺数对盘面平均努赛尔特数的影响大于旋转雷诺数。
This swirl flow provides a large number of advantages.
这种涡流提供很多优点。
This swirl flow provides a large number of advantages.
这种涡流提供很多优点。
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