燃烧

The nature of coupling between combustion and fracture are twofold in the convecting combustion process of crack cavity. On the macroscopic scale; the coupling appears as the energy and mass transforming between the solid phase of the cracked body the gas phase of the flow field. On the microscopic scale, the coupling induces the evolution of the microstructures, which leads to degradation of mechanical properties of solid materials.

从燃烧断裂耦合的内在形式来看，包括两大方面的内容：在宏观表象上，表现为在含能材料裂纹的对流燃烧过程中，固相裂纹体和对流燃烧流场之间的质能交换形式的热力耦合；在微细观运动方面，热和力的作用诱发固体材料微细观运动和组分、结构的变化，最终改变固体材料的宏观力学性能，表现为固体材料的热力损伤过程。

Various value of mass transfer number and the oxidizer mass flux were considered in the calculation. The regression rate of the solid fuel was formulized based on the calculation.

为了深入了解混合燃烧的机理，在1963年由Marxman等[3]提出了基于边界层燃烧的对流传热控制模型，该模型假定燃烧发生在固体燃料升华表面上的边界层中的一个相对薄的火焰层中。

Gasifying the liquid water cannot be neglected because it is heat consuming,thus decreasing the theoretical combustion temperature .

在高炉煤气干湿成分转换时，把煤气中机械水算作水蒸气有失煤气成分的真实性，影响燃烧计算的准确性；煤气燃烧时机械水气化耗热要降低理论燃烧温度，其影响不可忽略。

When the temperature of smoke inpouring air preheater increases, aggregate fuels and sediments will combust in stated temperature conditions.

这些起火起因于燃料油的不充分燃烧，其结果是未充分燃烧的燃料油凝结和聚集在空气预热器的部件上，当进入空气预器的烟气温度增高时，沉积的燃料油被烘烤，当达到一定温度条件时，则可点燃这些燃料油污沉积物，造成火灾发生，这通常被称为空气预热器的二次燃烧。

From simulations and data of fire site, most air preheater fire often appear when boiler is started in cool state and standby which fuels of insufficient combustion coagulate and congregate on the parts of air preheater. When the temperature of smoke inpouring air preheater increases, aggregate fuels and sediments will combust in stated temperature conditions. It is called the second combustion of air preheater.

这些起火起因于燃料油的不充分燃烧，其结果是未充分燃烧的燃料油凝结和聚集在空气预热器的部件上，当进入空气预器的烟气温度增高时，沉积的燃料油被烘烤，当达到一定温度条件时，则可点燃这些燃料油污沉积物，造成火灾发生，这通常被称为空气预热器的二次燃烧。

The conducting wall in micro-tube preheats the inlet mixture by axial heat transfer. The existence of conducting wall will help to reach full reaction in the micro-tube. As the inlet velocity increases, both the existence of the surface catalytic combustion and the gas phase combustion become the limiting factors on combustion. Wall material and equivalence ratio of hydrogen/air mixture have important influence on catalytic combustion of hydrogen.

计算结果表明：表面催化反应对空间气相反应有抑制作用；在微型管道内，通过导热壁轴向间的传热，预热入口混合气体，使氢气燃烧更加充分；随着入口速度的增大，燃烧过程同时存在着表面催化反应和空间气相反应两种控制因素；管壁材料和当量比对氢气的催化燃烧过程有重要的影响。

It was a question for discussion problem in technical alteration and retrenching energy sources that improving thermal efficiency of boiler running, reducing expend of energy and decreasing the pollution of the environment.

目前锅炉控制的核心难点问题就是研究如何提高燃烧系统的经济燃烧指标，如何对锅炉燃烧过程进行最有效的控制。

Measurements of turbulent combustion were conducted in a test facility for combustor with staged air injection .

本文在分级进风燃烧室的热态实验装置上，测量了燃烧室内湍流燃烧的温度场和组分浓度场，研究了分级进风的流量比率即二次风率对燃烧及NO_2生成的影响。

The theory of staic permeation diffusion combustion is presented in the fuel bed firing of bio coal .

提出生物质型煤层燃方式的静态渗透式扩散燃烧机理，通过试验得出生物质型煤燃烧速度影响因素的规律性，为生物质型煤燃烧控制技术、工业锅炉设计提供有价值的依据。

In applying high concentration burning technique to improving burning efficiency for pulverized coal burner, for studying the effect of solid flows of different concentration on burning, Euler mathematical model is set up using gas-solid two phase flow theory. The paper describes the low concentration pulverized coal in horizontal primary air pipe. The relationship between the velocity and concentration of gas phase and that of solid phase, and the effect of gas flow velocity on gas-solid two-phase flows, is arrived through calculating the flow field. Reasonable gas flow velocity is proposed.

在应用高浓度燃烧技术提高煤粉炉的燃烧效率时，为了研究不同浓度固相流动对燃烧的影响，应用气固两相流理论建立Euler数学模型对一次风水平管道中低浓度的煤粉颗粒进行了描述，通过求解流场，得到了管内气相和固相的速度和浓度的分布关系，及其气体流速对气固两相流动的影响，并提出合理气流速度。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了