ratio of combustion

The pulverized coal combustion of different coal in 600t/ d preheater kiln by three-channel burner was studied with CFD method. The flue-gas temperature, the flame length and the burn out ratio of coal were predicted.

本文以600t／d预热器窑中三通道喷煤器的煤粉燃烧过程为研究对象，采用CFD模拟分析技术，预测了窑内燃烧不同煤质时的烟气温度、火焰长度、煤粉燃尽率等的变化规律。

Thirdly, on the basis of the 2190T natural gas internal combustion engines, the 2190 landfill gas internal combustion engines are developed successfully by means of some important technical methods such as increasing compression ratio, modifying ignition timing, precombustion chamber ignition, turbocharging.

以2190T天然气发动机为基础，采用提高压缩比、调整点火提前角、预燃室式燃烧室、进气增压等技术措施，初步开发出2190垃圾填埋气内燃机。

Using k-ε turbulence model and one step eddy-dissipation model, numerical studies on the reacting flow field of solid rocket ramjet with secondary air inlets were carried out. Influence of mass flow ratio on combustion efficiency and temperature field was analyzed.

采用k-ε湍流模型及单步涡扩散化学反应模型，对二次进气结构的固体冲压发动机补燃室的反应流场进行数值模拟，分析了二次进气流量比对燃烧效率与温度场分布的影响。

Unburned hydrocarbon would increase over a wide range of equivalent ratio, shortening the time interval between injection timing and ignition timing can decrease the value to that of homogeneous mixture combustion.

与均匀混合气燃烧相比，碳氢的排放增加，缩短喷射时刻与点火时刻的时间差可达到均匀混合气燃烧时相同的排放量。

Taking optimization of a real thermal process into account, the intermittent calefaction mode is superior to the continuous. Adopting high temperature of combustion air and relative large excess air ratio is an appropriate combustion mode which is reasonable and economical relatively.

从热工制度优化角度，保温炉采用间歇式的大火加热方式比连续式的慢火加热效果要好；采用较高的助燃空气温度的和较大的空气过剩系数是比较合理和经济的燃烧方式。

The influences of the intake charge tem perature 、 fuel air equivalence ratio 、 compression ratio 、 CO2 to combustion and pollution are studied.

分析了进气温度、燃空当量比、压缩比、CO2对燃烧和排放的影响。

Adopting high temperature of combustion air and relative large excess air ratio is an appropriate combustion mode for the furnace.

采用高温助燃空气和较大的过剩空气系数是一种较好的燃烧方式。

Leaving the rated load, especially with low load and free running operation, Ihe efficiency of turbocharger and ratio boost pressure decrease, leading to the shortage of air in cylinders and worsening of combustion, and the economic, power and exhaust performances deteriorate.

当偏离标定点，尤其在低负荷和空转工况工作时，增压器效率降低，增压压力明显下降，导致气缸供气不足，缸内燃烧不良，柴油机的经济性能、动力性能和排放性能将严重恶化。

The ratio of fluoranthene to pyrene may indicate that PAHarea was mainly from uncompleted combustion.

根据荧蒽与芘质量浓度比值判别市区内PAH主要来源于燃料的不完全燃烧.

Effects of Octane Number and Premixed Ratio on the Knock and Combustion Characteristics of Dual-fuel SCCI

辛烷值和预混合率对双燃料发动机SCCI燃烧与爆震的影响