查询词典 combustion

The results show that in TR combustion system,fuel ignition location is near TDC,and premix combustion proportion increases.

结果表明，TR燃烧系统的着火点控制在上止点附近，增加了预混合燃烧的比重。

So it is very important to undertake normal working of the coal spontaneous combustion experimentation system. The research content of this programer is to carry out fault diagnosis of the coal spontaneous combustion experimentation temperature control system and predict its working condition tendency.

而进行煤自然发火实验可以研究煤自燃原因、自燃升温过程规律性，因此煤自然发火实验系统的正常运行关系重大，本课题研究内容就是对煤自然发火实验台温度控制系统进行故障诊断，预测预报其运行状态趋势。

Because the raw material of insulated layer and fire resistance and the making tecknology are different form that of ordinary cable , so it can resistant combustion, explosion and withstand 840℃ high temperature about 60 minutes. It can't be combustion, ignition and is constant in the propery of electric conduct.

由于绝缘层和耐火层的材料、工艺与普通电缆不同，故在易燃、易爆、极寒场合能承受-250℃～840℃高低温持续60分钟不燃烧，不着火，不老化，且导电性能不变。

The paper presents a way that on a diesel engine the fuel ethanol is used blended with gasoline as its additive. On the base of analyzing the physical, chemical and mixing proportion characteristics of ethanol-diesel-gasoline blended fuel, combustion characteristic and the effect on diesel engine performance using the blended fuel with different proportional component are studied on a 135 diesel engine. At the same time, the effect on the diesel engine performance and combustion characteristics using the blend fuel are also studied under different diesel engine parameter.

本文阐述了在柴油机上以汽油为助溶剂应用燃料乙醇的一种方法，在分析乙醇-柴油-汽油混合燃料的物化特性和配比特性的基础上，试验研究了在135柴油机上燃用不同比例的混合燃料对柴油机性能的影响及其燃烧特性；同时，还研究了在不同的柴油机参数下应用混合燃料对柴油机性能和排放特性的影响。

The method that combustion pressure pulsation is reconstructed from vibration signals, is valuable for diagnosis of combustion process.

本文研究的利用振动信号恢复缸内燃烧压力波动信号，对于燃烧过程的诊断具有实用意义。

The high pulverized coal concentration combustion technique has been regarded as an effective method to raise the combustion efficiency in the recent years.

高浓度煤粉燃烧技术近年来得到众多学者的重视并被认为是一种有效的提高燃烧效率的技术。

After getting online results, combustion expert controller gained relevant ratiocinate output results by integrating technical parameters of online inspected system, combustion computed results and diagnostic and manipulated countermeasure of knowledge base, then which could propose operator for choosing a suitable control method using concentrated corresponding rules.

在得到在线计算结果以后，燃烧专家控制器综合在线检测系统提供的工艺参数，以及燃烧计算的结果，使用存放在知识库中的诊断和操作对策，得到相应的推理输出结果；利用规则集的相应规则，提示操作工选用合适的控制方法。

Some sub-models of the original KIVA code were modified, by introducing into the Kelvin-Helmholtz and Rayleigh-Taylor model for spray breakup, the multiple laminar and turbulent characteristic timescale combustion model, the heat transfer model of Han and Reitz, the Hiroyasu and Nagle soot model and the improved Shell auto-ignition model were added to the original KIVA, to improve the predictions of engine spray, ignition, combustion, gas/wall heat transfer and emissions.

为提高模拟精度对标准的KIVA程序进行了改进，引入KH-RT雾化模型、层流和湍流多重特征时间尺度燃烧模型、Han和Reitz传热模型以及Hiroyasu和Nagle碳烟排放模型来模拟柴油机多次脉冲喷雾、燃烧、壁面传热及排放过程，同时增添改进的Shell自燃模型来模拟着火过程。

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。

According to the principle of thermal equilibrium and considering the complexity of combustion system a new standpoint of representing coal-measurement by heat signal is put forward. Then a self-searching optimal control method for enhancing thermal efficiency is obtained through the optimal wind-coal ratio. Then a computer control system for economic combustion in coal-fired boiler is designed.

通过实现燃煤锅炉最佳风煤比，得出提高锅炉热效率的自寻优控制方案，设计出了用于燃煤锅炉经济燃烧的计算机控制系统。，提出了一种最优控制方案——效率自寻优方法。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。