燃烧中

This research focuses on the investigation of application of compound combustion engine in generating sets. Through theoretical analysis and practical applications of diesel and generating sets produced by our company, comprehensive investigations have been carried out in such aspects as soot and NOx emissions reduction from compound combustion engines, specific fuel consumption reduction, improvements of fuel economy of generating sets and compound combustion engine meets special power match of generating sets.

本课题主要着眼于组合燃烧发动机在电站机组中的应用研究，通过对本公司生产的柴油机和电站机组的理论分析和具体实践，在组合燃烧发动机减少碳烟和NO_x排放，降低当量比油耗，提高机组的使用经济性，以及组合燃烧发动机满足电站机组特殊的动力匹配方面进行了创造性的总结，并论证了适合我国技术水平和能源状况的组合燃烧理论。

Because of the fuel-rich propellant's high heat value and combustion temperature, the common stainless steel crucible and oxygen bomb's parts are always burned in the combustion heat testing process. In order to realize the proper testing of combustion heat, some fireproof materials characteristics and their application in the combustion heat testing of fuel-rich propellant were studied. Those fireproof materials include acid washing asbestos, C/C compound materials, Al2O3 chinaware and tungsten crucible.

含金属富燃料推进剂由于热值高、燃温高，在燃烧热测试过程中普通的不锈钢坩埚及附件经常被烧毁，为了正确测试金属富燃料推进剂燃烧热，对酸洗石棉、碳／碳复合材料、Al2O3陶瓷坩埚和金属钨坩埚的基本耐烧蚀特性和在金属富燃料推进剂燃烧热测试中的应用进行了实验研究。

According to the composition of elements of fuel,thermochemical forms,combustion heat,and time-dependent relations of oxygen concentration acquired during fullscale tunnel fire experiment,the formulae are given for calculating di- mensionless burning rate, released heat rate ,and ratio of medium decalescence.

根据燃料的元素构成、热化学反应式、反应物和生成物的焓变以及燃烧过程中监测到的烟气中氧气浓度随时间变化规律，提出了计算某一时刻燃料燃烧速率、释热速率和介质吸热率的关系式；通过实际规模的火灾试验，对其数据的计算表明，对木质类巷道火灾，最大比燃烧速率为0.193，最大释热速率约为1～3.5 MW，介质的吸热率为22

In some extent, increasing the area of fuel nozzle will be improve the combustion efficiency of DR; 3, the angle between dual air-inlets have complex influence with the combustion of DR.

研究结果表明：(1)补燃室头部距离的增加能增强补燃室头部回流以及提高燃料在补燃室后段分布的均匀性，但也减少了燃料与空气在补燃室后段进行掺混和燃烧的长度：(2)在一定范围内，增加一次燃气喷嘴面积能提高冲压发动机燃料的燃烧效率：(3)进气道夹角对冲压发动机中燃料的燃烧影响复杂，对于采用对称结构喷嘴的冲压发动机，当进气道夹角等于180°时，燃料与空气的掺混效果最好；而对于一次燃气喷嘴采用不同偏心结构的冲压发动机，补燃室内流场与燃料燃烧效率随进气道夹角变化的规律基本相似。

Coal particles with different lithologic characteristics are studied with the consideration of the graphitization effects during combustion process.

在计算中，将煤岩学对煤进行分类研究的思路引入燃烧学，对不同煤岩类别的煤分别进行研究，同时在焦碳燃烧模型中还考虑了煤焦在高温下石墨化对燃烧速率的影响。

Mechanical properties and combusition characteristics were affected evidently by the solid grain configuration and its character. Mechanical propertiesof the material system could be improved by adopting RDX and proper granularpropellants granularity rank-match. It is favorable to obtain progressivity burning effect byaffiliating increasing burning surface propellant grains. Affiliating fast burning componentthese burning rate regulator in the bond system can quicken burning rate of propellants andimprove burning progressivity.

固体颗粒形态及其性质对力学性能和燃烧性能具有较大的影响，采用RDX与适当颗粒度的固体发射药的粒度级配有利于改善力学性能，加入增面燃烧的发射药颗粒，有利于获得渐增性的燃烧效果，在粘合剂体系中加入速燃组份等燃速调节剂，可加快发射药的燃气生成速率，改善燃烧的渐增性。

In addition to measurements of conventional dynamic parameters o n a model surface,an optical observation method was employed,which directly reco rded self-luminosity of high temperature gas induced by a two-dimensional mode l in high enthalpy flow and combustion radiation.Hypersonic flow fields passing over a sharp strut including fuel injection were displayed and recorded with a high-speed CCD camera.A phenomenon of supersonic diffusive combustion under fre e boundary condition was observed.

实验除测量常规流场参数和模型表面的动态参数外，主要使用二维实验模型，利用高温气体的自发光和燃烧伴随的发光现象，采用高速摄影技术来观测燃烧现象，记录到高焓流场中叠加燃料喷射和燃烧的流场，观察到自由边界条件下扩散控制的超声速燃烧现象。

It was found that, in comparison with O2/N2 combustion, O2/CO2 combustion does not affect the iron-bearing phases formed, however, it does affect their relative amounts in the ashes. O2/CO2 combustion favors the included pyrite and siderite to form iron-containing glass silicates rather than oxidizing to form iron oxides.

结果表明，与O2/N2燃烧相比，O2/CO2燃烧对灰中生成的主要含铁矿物相种类没有影响，但显著地改变了灰中含铁矿物相的相对含量；O2/CO2燃烧更有利于内在黄铁矿和菱铁矿生成硅酸盐玻璃体而不是氧化成铁氧化物。

A simulated burnt piece of coal or wood, usually a plastic casing having a wood-like or coal-like coating, with a light source mounted therein, and a strip of cloth having a shape of fire flames billowed above the simulated burning medium by blowing wind. A vision of jiggling fire flame may be viewed through a partially translucent screen made of plastic.

现有的电壁炉火焰模拟装置中，一类装置为模拟煤炭或树枝状碳块的燃烧介质，通常这些燃烧介质由表面涂有树枝状木材颜色的塑料壳体替代，里面装有一组灯泡光源，来模拟燃烧树枝状木材时的效果，再用一组火焰形状的丝绸布料飘带悬挂在燃烧介质上方，通过空气的吹动来带动飘带飘动时的投影效果，通过半透明的塑料屏幕与镜面玻璃，可以看到火焰闪动的视觉景象。

Considering a spherical porous carbon particle immersed in a static ambient atmosphere, the combustion characteristics under three basic conditions: frozen flow, equilibrium flow, partial flow are solved in a half-analytical and half-numerical way. By using the LAEA (Large Activation Energy Asymptotic Method), the departure value of some parameters such as combustion rate, temperature, and concentration are obtained. On this basis, the rules of a carbon particle combustion under various conditions when the gas phase Damk〓hler number is in the range of 0,+∞ are summarized.

建立氧化性环境中相对静止的多孔炭粒燃烧的控制方程，采用半解析、半数值方法求解出炭粒在冻结流、部分流、平衡流三种基本情况下的燃烧规律，并采用大活化能渐近匹配方法，计算出偏离冻结流、偏离平衡流情况下燃烧速率、温度及组分浓度等参数的偏离解，进而总结出炭粒在气相Damk〓hler数为0，∞整个范围内燃烧特性变化规律。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。