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火焰最高温度
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  maximum combustion temperature
     The wall temperature has remarkable effect on the averaged exit temperature, whereas, it has small effect on the maximum combustion temperature.
     壁面温度仅对出口平均温度的影响较大,对火焰最高温度的影响较小。
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  “火焰最高温度”译为未确定词的双语例句
     Premixed combustion is of high efficiency and it provides the convenience for controlling the maximum temperature of flames and then effectively suppressing NO_X. Thus it is widely used in advanced combustors.
     预混燃烧效率高并且便于控制火焰最高温度从而有效地抑制NO_x,因此在先进燃烧器中被广泛应用。
短句来源
     The flame temperature calculated with the model function was corresponding with the testing result.
     模拟推导出回转窑内燃烧火焰最高温度,并在实际生产过程中得到了验证,模拟计算结果与实际生产过程有较好的拟合度。
短句来源
     The calculated results clearly show that with steam addition, the OH radical is increased, O radical and H radical is decreased for the same flame temperature. So the production rate of CO is decreased.
     计算结果表明在火焰最高温度相同的情况下,湿空气中的水蒸汽使OH基浓度增加、O基和H基浓度降低,从而抑制CO的生成。
短句来源
  相似匹配句对
     Study on the Measuring Instrument of Flame Temperature
     火焰温度测量仪研究
短句来源
     Permitted highest temperature of OPGW
     OPGW允许的最高温度
短句来源
     Study on the Measurement Techniques of Flame Temperature
     火焰温度测量技术研究
短句来源
     T is temperature, ℃.
     T为温度,℃。
短句来源
     the highest temperature is located in the weld centerline.
     焊缝中心处温度最高
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  peak flame temperature
A decoupling of peak flame temperature and maximum PAH and excited CH concentration indicates significant transient effects resulting from the unsteady flow field even at these low oscillation frequencies.
      
From Figure 7, the calculated peak flame temperature is close to 2100 K.
      
From Figure 11, it is found that peak flame temperature is only around 1600 K, even though the oxidizer is 100% O2.
      
Some rich burn engines can be prestratified charge engines that reduce the peak flame temperature in the NOx-forming regions.
      
This peak flame temperature is over predicted if a single-step reaction mechanism is used.
      
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  maximum combustion temperature
The rate of combustion and the maximum combustion temperature were largely determined by the grade of the zirconium powder.
      
The maximum combustion temperature is equal to1872 K.
      
The maximum combustion temperature is limited by the temperature of dissociation of CrN.
      
Good agreement is obtained between simulated and experimental dependences of the propagation velocity of the front and the maximum combustion temperature on the initial heating temperature of the powder mixture.
      
The maximum combustion temperature and combustion wave velocity decrease with the increase in the Al amount.
      


Numerical simulations of radiation heat transfer and combustion process have been carried out in an real industrial phosphorus reactor. The predicted results give the variation of the averaged wall heat flux、the maximum wall heat flux、the averaged exit temperature and the maximum combustion temperature changed with the wall temperature、 the radiation absorption coefficient and the wall emissivity. The predicted results show that the radiation absorption coefficient has remarkable effect on the phosphorus combustion...

Numerical simulations of radiation heat transfer and combustion process have been carried out in an real industrial phosphorus reactor. The predicted results give the variation of the averaged wall heat flux、the maximum wall heat flux、the averaged exit temperature and the maximum combustion temperature changed with the wall temperature、 the radiation absorption coefficient and the wall emissivity. The predicted results show that the radiation absorption coefficient has remarkable effect on the phosphorus combustion and maximum radiation heat flux in the reactor. The wall emissivity has a small effect on the combustion temperature. The wall temperature has remarkable effect on the averaged exit temperature, whereas, it has small effect on the maximum combustion temperature. The radiation absorption coefficient、the wall emissivity and the wall temperature have the same importance effect on the averaged wall heat flux. The predicted value of averaged heat flux is in good agreement with that of the experimental data.

本文对热法磷酸塔内的燃烧过程及辐射传热进行了数值模拟研究,针对云南省磷化工中试基地所提供的燃磷塔的设计结构,探讨了燃磷塔壁面温度、磷火焰辐射吸收系数和壁面黑度对燃烧温度、燃磷塔山口平均温度和壁面热流的影响。数值模拟结果表明,磷火焰辐射吸收系数对塔内的传热及燃烧特性的影响最大。壁面黑度对燃烧温度、燃磷塔出口平均温度和壁面热流的影响近似呈线性规律,对燃烧温度影响作用较弱。壁面温度仅对出口平均温度的影响较大,对火焰最高温度的影响较小。上述三种因素对壁面平均热流的影响作用基本相同。所预报的壁面热流平均值与现场试验结果符合较好。

With the heat and mater balances method, the specific heat of gas and solid in the clinkering process was statistically regressed. And a mathematical model was put forward, with which the burning temperature in rotary kiln can be exactly calculated. The flame temperature calculated with the model function was corresponding with the testing result.

基于硅酸盐水泥熟料在回转窑内煅烧过程热平衡和物料平衡基本理论,建立起回转窑内燃烧模型。通过对回转窑煅烧过程中相关气体和固体的比热进行回归计算,建立和引用与温度相关的数学模型,提高了模拟计算的精确度。模拟推导出回转窑内燃烧火焰最高温度,并在实际生产过程中得到了验证,模拟计算结果与实际生产过程有较好的拟合度。

This paper presents the results of fundamental research on CO emissions in HAT cycle. To clarify the relationship between H2O and CO emissions, the characteristics of methane-humid air counterfiow diffusion flame have been simulated numerically by applying GRI-Mech 3.0 detail chemical kinetics. To investigate the chemical reaction effects of steam addition on the CO formation with the effect of the temperature decrease because of steam addition excluded, the maximum flame temperature was adjusted to the same...

This paper presents the results of fundamental research on CO emissions in HAT cycle. To clarify the relationship between H2O and CO emissions, the characteristics of methane-humid air counterfiow diffusion flame have been simulated numerically by applying GRI-Mech 3.0 detail chemical kinetics. To investigate the chemical reaction effects of steam addition on the CO formation with the effect of the temperature decrease because of steam addition excluded, the maximum flame temperature was adjusted to the same value by varying the initial temperatures. The calculated results clearly show that with steam addition, the OH radical is increased, O radical and H radical is decreased for the same flame temperature. So the production rate of CO is decreased. These results may be useful to predict CO emissions in HAT cycle.

本文描述了HAT循环中CO排放的基础研究结果。为了澄清加湿和CO排放的关系,采用GRI-mech3.0详细化学反应机理,对甲烷-湿空气对冲扩散火焰进行了数值研究。对不同的空气含湿量通过改变进口预热温度调节最高火焰温度,解耦湿空气影响火焰的温度和自由基浓度效应,研究甲烷-湿空气火焰中CO生成的化学机理。计算结果表明在火焰最高温度相同的情况下,湿空气中的水蒸汽使OH基浓度增加、O基和H基浓度降低,从而抑制CO的生成。这些结果有益于准确预测HAT循环中CO的排放。

 
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