查询词典 combustion method

The good catalytic performances were obtained on those catalysts supported by SiO_2. With the increasing calcination temperature from 300℃to 700℃, Co_3O_4 particles augmented and sintered on the samples surface which contained 10 wt.% cobalt, the crystallite size of Co_3O_4 was aggrandized from 7.2 nm to 20.3 nm by inchmeal. On the other hand, the activation energy for the combustion reaction was increased linearly with the augment of average crystallite size of Co_3O_4, the TOF value on prepared catalyst was decreased with it. Thus, the catalytic combustion was a typical structure-sensitive reaction.

在钴含量为10 wt%的样品上，随着焙烧温度由300℃提高到700℃，钴物种出现迁移团聚甚至烧结，在XRD中测定的Co_3O_4晶粒尺寸由7.2 nm逐步增加至20.3 nm；另一方面，催化剂的燃烧活化能随样品上Co_3O_4晶粒的平均尺寸增加而呈现线形增加趋势，而单位时间内单位活性物种上的甲烷转换频数随着粒径增加而逐渐降低，这一现象证实了该反应属于典型的结构敏感反应。

The structure, function and working principle of the designed simulation device for the isochoric combustion are described. This device is mainly composed of gas source, isochoric combustion bomb, fuel/air blender, mixture allocate system, spark ignition system, control system, data acquisition system, etc.

文章就所研究的定容燃烧模拟装置的结构组成、功能和工作原理进行了论述，该结构主要由气源、定容燃烧弹体、燃料／空气混合器、混合气配给系、点火系、控制系统和数据采集等系统组成。

By proximate and ultimate analysis, petrographical analysis, Scanning Electronic Microscope analysis, Mercury Porosimeter analysis, TG analysis and pilot scale fluidized bed combustion experiment, the combustion characteristics and particle properties of Longyan coal with different lithotype were studied, including the surface figure and pore structure of particle, the maceral content, the ignition and burnout temperature, and the reactivity, ect.

利用热天平实验测试数据，分别采用Freeman-Carroll微分法、改良Coats-Redfern积分法和Flynn-Wall-Ozawa法等热分析手段求解4种无烟煤的燃烧动力学参数。研究不同热天平试验工况、不同处理方法和不同拟合区间等对求解结果的影响，分析用不同热分析方法求解反应动力学参数的可靠性并计算得到了几种典型福建无烟煤的燃烧反应动力学参数；再次是研究流化床燃烧中无烟煤焦的反应性随燃尽度的变化。

Combustion experiments with semi-coke of Huadian and Wangqing oil shale were conducted in a bench-scale FBC reactor. Ash samples were obtained under different combustion conditions. Adsorption isotherms were determined by Micromeritics Gemini 2380 specific area analyzer under nitrogen atmosphere. The pore size distribution of samples was determined on the basis of BJH theory.

在自行设计搭建的小型流化床试验台上进行吉林桦甸、汪清的油页岩半焦燃烧试验，得到不同工况下的灰样，在Gemini 2380快速比表面积分析仪上测得灰样吸附等温线，采用BJH法计算孔分布。

In this study, we used HNS as the combustion regulator and discussed the impact of HNS on the combustion stability of nitramine propellant.

本文采用HNS作为新的燃烧调节剂，通过DSC热分解实验和密闭爆发器的实验，研究HNS对硝胺发射药燃烧稳定性的影响。

In order to study the effects of phases of HMX on the nitramine propellants, the combustion performance and mechanical properties of nitramine propellants containing α-HMX and β-HMX were tested by closed combustion bomb and mechanical properties tester.

为了研究奥克托今的晶型对硝胺发射药性能的影响，采用密闭爆发器以及力学性能测试仪，对含α-HMX和β-HMX两种不同晶型硝胺发射药的燃烧性能和力学性能进行测试。

On the basis of composite solid propellants combustion model, we have modifiedthe surface structure factor of nitroamine propellants and a new function have be used tomodified the decomposition products of nitroamine according to predecessors researchfindings in combustion mechanism of nitroamine propellants, these work make originalmodel is indicated for a wide range of pressure and particle size.

2在原有的复合推进剂燃烧模型基础上，根据前人在硝胺推进剂及燃烧机理方面研究成果对硝胺推进剂表面结构因子f_进行修正，并引入ξ函数对硝胺的分解产物中的氧化性气体含量进行修正，使原有的燃速预估模型能适用于更宽的粒度及压力范围。

Since there exists some disadvantages such as poor mechanic properties and much higher burning rate pressure exponents (?1) in the fundamental formulations, this work is devoted to the improvements of combustion characteristics and mechanic properties of LOVA propellants. The effects of the crystal shape, size and contents of nitroamine particles, the types of binder, plasticizer and surface-active agents and the contents of NC on combustion performance are studied by closed bomb tests. In the mechanic properties tests, the effects of the types of binders, plasticizers and solid fillers, the interaction between binders and solid fillers and technological procedures on propellant mechanic properties are researched.

针对基础配方具有燃速压力指数远大于1、力学性能差等特点，采用密闭爆发器等试验手段，研究了诸如硝胺粒径、硝胺晶体形状、硝胺含量、粘结剂、增塑剂、硝化棉含量及表面活性剂等因素对燃烧性能的影响；采用抗沖、抗压静态试验方法，对粘结剂、增塑剂、固体填料、粘结剂与固体填料之间的相互作用及工艺条件与力学性能之间的关系进行了研究，提出了改善低易损性发射药燃烧性能和力学性能的技术途径。

The properties of turbulence which characterized as the movement of vortexes influenced the heat and mass transfer, propagation of flame in the combustion process deeply, at the same time, the turbulent combustion based on the turbulent flow coupled with the intense chemical reactions, meanwhile, the heat releasing and the transfer of species concentration cause the nonnegligible effects on the turbulence and its structure.

以涡运动为特征的湍流的性质对燃烧过程中传热、传质和火焰传播都具有重要的影响；同时，湍流燃烧过程则是在湍流流动基础上再耦合以强烈的化学反应，其间由于燃烧造成的热释放、组份浓度的迁移等同样会对湍流流场产生不可忽视的作用。

A new desulfurization apprach for pulverized coal combustion is introduced in this paper; pulverized coal is first burn in a precombustion furnace under oxygen deficient condition (about 30% air needed in boiler is provided for precombustion), in precombustion moust of sulfur in coal is decomposed and oxidized, and evolved, the sulfur evolved is trapped in a desulfurizing fluidized bed by calsuim, and then the char and gas are introduced to the boiler furnace for complete combustion.

本文提出了一种煤粉燃烧脱硫新方案，利用煤中硫优先氧化分解释出的原理，用少量的空气（大略为锅炉实际空气用量的30％），在一前置燃烧室中，使煤粉中硫的绝大部分被分解氧化，释放出来，释放出来的硫在脱硫流化床中被石灰脱硫剂脱除，未燃烧的炭粒与烟气再吹进锅炉膛中完全燃烧。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。