查询词典 combustion

The flame configuration and combustion efficiency in the conditions of different concentrations(50%, 65% and 85%) of ethanol are obtained through fenestration experiment and numerical simulation.

多组分燃料蒸发燃烧特性是当前国内外研究的热点，综合采用开窗试验和数值仿真方法，得到了不同酒精浓度(50%、65%和85%)燃烧的火焰结构，分析了酒精浓度对燃烧效率的影响。

Ferric oxide in the coal exerts a negligible influence on the coal combustion.

Fe2O3是比较稳定的组分，对煤的燃烧过程影响不大。

The testing method of the kitchen ventilator quality,as well as the calculation method of the leakage of the oil fume and the waste gas from combustion gas are given by measuring the effective intensity vector diagram of the suction wind field for a kitchen ventilator.

通过对吸油烟机抽吸风场有效强度矢量图的测量，给出了吸油烟机质量技术检验方法和油烟废气、燃气废气污染泄漏量的计算方法；对油烟、燃气废气在厨房的扩散与循环作了详细分析，并对国标提出几点建议。

Based on the concept of averaging electromagnetic field, the optical constants of Goodwin synthetic ash, Chinese Qitaihe coal ash and Russian ash Br-1 were calculated by Maxwell-Garnett and Bruggeman effective medium theory. Computational results show that, for the synthetic coal slag, the optical constants estimated by EMT consist with the experimental values, but for the coal-ash produced in combustion, the optical constants estimated by EMT using industrial analytical species deviate far from the experimental values.

基于电磁场平均的概念，利用Maxwell-Garnett和Bruggeman有效介质理论分别对Goodwin人工合成灰渣、中国七台河矸石煤灰、俄罗斯褐煤灰Br-1 3组煤灰的光学常数进行计算，结果表明，人工合成灰渣光学常数的有效介质理论值与实验值吻合，而利用工业分析成分，燃烧生成煤灰光学常数的有效介质理论值与实验值有较大偏差。

The combustion characteristics of the thermit in the presence of liquid phase in the field of gravitational forces were investigated.

研究了重力场作用下有液相生成的铝热剂的燃烧特性。

Liquid propellant rocket engines ; combustion chambers ; partition model ; finite elements ; state variable model

液体火箭发动机；燃烧室；分区模型；有限元；状态变量模型

This means they have a fixed glass front which seals the gas burner and combustion firebox off from your home.

这些壁炉都有一个固定的玻璃前壁可以将燃气装置和燃烧盒密封，与室内隔绝。

The heating furnace has a high combustion intension, the volume of firebox is only dozens percents as much as general heating furnace, the thermal efficiency is as high as 90% and save energy as much as 30%, it has a wonderful application prospect.

该加热炉燃烧强度高，燃烧室体积只相当于普通加热炉的几十分之一，热效率已达到90%以上，节省能源在30%左右。有很好的应用前景。

The specimens may not burn with flaming combustion for more than 30 seconds after either application of the test flame.

在每一次本生灯火焰燃烧1 0秒钟移开后没有任何一个试片被火焰点燃超过30秒钟。

The specimens may not burn with flaming or glowing combustion for more than 60 seconds after the fifth application of the test flame.

在第5次的火焰燃烧5秒钟之后，没有任何一片试片被点燃或持续燃烧超过60秒。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。