The results show that the effect of combustion efficiency on chamber pressure is limited, nozzle loss is mainly caused by its structure and size. 研究表明,补燃室压强的变化对燃烧效率的影响是有限的,喷管损失主要与喷管结构尺寸有关;
AES-S2 numerical simulation model consists of two-dimensional Euler equation, combustion model and loss model. AES-S2数值仿真模型由带有黏性项的二维欧拉方程、燃烧模型和损失模型构成;
To adopt reburning technology of superfine pulverized coal to reduce NO x emission is, with the superfine pulverized coal as the reburning fuel, to solve the problems of higher incomplete combustion loss and lower NO x reduction efficiency existing in the reburning of conventional size pulverized coal. 采用超细煤粉再燃,降低氮氧化物排放的技术是将超细煤粉作为再燃燃料,解决常规粒度煤粉再燃未完全燃烧损失较大、氮氧化物还原率低的问题。
Early exhaust valve closing ( EVC) timings result in high residual fractions in the cylinder, decreasing air mass in cylinder per cycle, increasing combustion duration, and decreasing IMEP while the pumping loss is decreased. 排气门关闭越早,缸内的残余废气量增加,每循环进气量减少,燃烧持续期变长,PIMEP减小,然而泵气损失减小;
Both cold flow test and combustion experiment show that SVGs with higher combustion efficiency and lower total pressure loss are much better than traditional V tpye flame holder. 冷态试验与热态试验的结果都揭示,这种新型稳焰器有较高的燃烧效率和较低的总压损失,性能强于V型稳器。
The coal spontaneous combustion not only can cause great loss of energy sources but also is a great disaster. 煤炭自燃不仅造成巨大的能源损失,也是重大的灾害,为减少采空区煤炭自燃,研制了新型的凝胶阻化剂。
By measurement and analysis of combustion system and billet loss of oxidation in the heating furnace of hot rolling plant, the reasons for serious loss of oxidation are found out, and suitable measures are put forward in this paper. 通过对热轧厂两座加热炉的燃烧系统、氧化烧损进行的热工测试、分析,找出造成炉子氧化烧损严重的原因,并给出相应措施。
This type furnace can keep high burning rate with low coal consumption, strengthen combustion and lower heat loss. 在耗煤量较低的情况下能保持较高的燃烧室强度。
The experiment showed that the properties of ABS composites, such as heat release rate, effective heat of combustion, mass loss rate, were dramatically decreased with the increase of CPE content. The composites met the requirement of UL 94V-0 when CPE content was 28wt%. 试验结果表明加入CPE之后,复合材料的热释放速率、有效燃烧热、质量损失速率显著降低,当CPE质量用量28%时,复合材料能达到UL94V-0级阻燃要求;
The experiments in laboratory and the combustion phenomena in actual boilers show that the most part in the said difference to be imperfect combustion loss. 实验室试验及实际锅炉燃烧现象表明,其差值的极大部分为不完全燃烧损失。
Based on exergy analysis of combustion process, the exergy loss rate was presented to estimate the irreversible exergy loss. 在燃烧过程可用能分析的基础上,提出可用能损失率指标,它可用于衡量燃烧过程不可逆损失的程度。
The experimental results show that all the performance parameters of the two retrofitting schemes, including combustion efficiency, total pressure loss, exhaust temperature profile, metal temperature distribution of the combustion liner and flame stability, have satisfied the design specification. 试验结果表明2个改造方案的性能参数,包括燃烧效率、总压损失、出口温度分布、火焰筒壁面温度分布和火焰的稳定性(贫燃料熄火极限)都能够满足设计要求。
The model takes account of the injection pressure, nozzle passage configuration, combustion chamber condition, flow loss and cavitation, and provides initial condition for multidimensional spray modeling. 该模型考虑了喷射压力、喷孔几何结构、燃烧室条件、孔内流动损失与空穴因素,为喷雾的多维模拟提供了准确的初始条件。
The combustion properties include the heat release rate, the mass loss rate, and the effective heat of combustion etc. 在此基础上研究了材料在高热流环境下的点燃时间,质量损失速率,热释放速率,有效燃烧热的变化及材料在燃烧过程中的热传特性。
Fire-proofing performances of the IFR-LDPE material are overall appraised from heat release, smoke release, effective heat of combustion, specific extinction area and mass loss provided by Cone calorimetry. 利用锥形量热仪CONE给出的热释放、烟释放、有效燃烧热和质量损失等参数对该材料阻燃性能进行全面评价和研究。
Multigrade internal combustion engine oils and their demands on evaporation loss 内燃机油的多级化及其对蒸发损失的要求
Theoretical Study on Combustion Process and Friction Loss of a HighSpeed Diesel Engine with Dual Crank linkage Mechanism 双曲柄机构柴油机燃烧过程和摩擦损失的研究
Fire is a disastrous combustion phenomenon, which leads a great loss of lives and properties. 火灾是一种灾害性燃烧现象,给人员和财产安全带来极大损失。
Results show that the continuous slot structure is better than other two types of discontinuous structure under experimental conditions because of its higher combustion efficiency, wider lean flame stability and lower pressure loss. 研究发现,在实验条件范围内,连续长缝形喷口稳定器的燃烧性能较其他两种不连续喷口稳定器优越,具有较高的燃烧效率、较宽的贫熄边界和较小的流阻损失。
The dynamics parameters of plastics combustion were calculated through the test on the plastics combustion loss. Then the combustion characters were analyzed. 通过废塑料燃烧过程的燃烧失重试验,计算出其燃烧动力学参数,分析塑料燃烧特性。
The furnace solid incomplete combustion loss ( SICL) increases by using pulverized coal staging. The proposed pulverized coal staging technology is a clean combustion technology. 分级燃烧使锅炉固体不完全燃烧损失(SICL)有一定程度增加,该煤粉分级燃烧是一种清洁燃烧技术。
Its channel structure and flow control have been optimized through the analysis of gas combustion loss and hydrodynamic. 通过气体燃烧损耗的流体力学分析,优化了通道结构设计和流速控制。
Fire is a kind of catastrophic combustion phenomenon, which causes casualties and property loss tremendously, and brings greatly hazards to society. 火灾是一种失去控制的灾害性燃烧现象。火灾的发生会造成严重的人员伤亡及财产损失,对人类社会的危害性极大。
However, there are differences between the actual and ideal combustion processes which caused by the restriction of engine thermal and mechanical loads, as well as emissions, thus inevitably result in combustion loss. 但是,柴油机由于受到有限排放、热负荷和机械负荷的限制,与理想放热规律存在差异导致燃烧损失。
The influences of injection and combustion rates of coal powder on carbon loss rate of coke were analyzed. According to the influence of coal powder injection on coke strength, a method to calculate the suitable combustion rate of coal was given in this paper. 分析了喷煤和煤粉燃烧率对焦炭失碳率的影响,根据喷煤对焦炭强度的影响在论文中给出了计算最佳煤粉燃烧率的计算方法。
The model considered the influences of the mode of reactants supply, the chemical reaction in the combustion chamber, radiation and convection heat loss of the combustion chamber wall, as well as fluid density changes in the tailpipe on stable operation of pulse combustion. 该模型考虑了反应物的供给方式、燃烧室内的化学反应、燃烧室壁面辐射与对流传热损失以及尾管内流体的密度变化对脉动燃烧稳定运行的影响。
There are two technical means to raise natural gas utilization efficiency& improving the combustion system efficiency and reducing heat loss of exhaust gas. 天然气作为燃料利用,提高其利用效率主要有两种技术手段,提高燃烧系统的效率和降低排烟热损失。
The results suggest that: for the cavity flame holder, the combustion efficiency and total pressure loss exhibit different trend when the length and slope angle of the rare wall is changed. 研究表明:对凹腔火焰稳定器:凹腔长度和后壁倾角A的变化对燃烧效率和总压损失的影响呈现出相反的变化趋势。
Further research shows that, the combustion loss is mainly caused by the extended combustion duration under low load conditions. Therefore as the load increases, combustion loss also increases. 进一步研究表明,在小负荷工作时燃烧损失主要是由燃烧持续期损失造成的,随着负荷的增大,燃烧损失逐渐增大。
It is reported that coal spontaneous combustion causes economic loss, including potential economic loss, is over 20 billion RMB each year in our country. 据统计,我国煤炭自燃所造成的经济损失(含潜在的经济损失)每年在200亿元以上。