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定性温度
相关语句
  qualitative temperature
     This paper puts forward the conception of the indoor qualitative temperature for heating, establishes a simplified analysis model, and presents a charging method in which the determination method of the regular cost of the heat charge is adjusted. This charging method is compared with other charging methods.
     提出了室内采暖定性温度的概念,建立了热费计算的简化模型,提出了热费计算的方法,对热费中固定费用的确定方法进行了调整,并与其他热费计算方法进行了比较。
短句来源
  “定性温度”译为未确定词的双语例句
     There is little difference between the result based on constant average temperature and that which is caculated using properties.
     在进出口温差较大时,用进出口平均温度作定性温度计算的结果与变物性计算的结果相比,误差很小.
短句来源
     Based on the temperature distribution and calculation in temperature boundary layer thickness, it is deduced the calculation formula of heat flux and friction loss of head in temperature boundary layer with laminar flow and turbulent flow of pipeline. Finally, intact example of design and application is shown.
     利用管道热边界层理论中关于边界层的温度分布及层流、紊流时热边界层厚度的计算表达式,推证了管壁热流量及定性温度的计算表达式,利用指数型的粘温特性方程,采用积分方法推出了管道热边界层流动中层流和紊流摩擦水头损失的计算公式,并给出了设计应用实例。
短句来源
     The behavior of the oxidation reaction of benzene over vanadium oxide catalysts has been studied in a packed bed tubular reactor.
     本文以V_2O_5为主的固体催化剂,研究了苯催化氧化制顺丁烯二酸酐(简称顺酐)的反应特征。 以铜块温度作为定性温度分析单管试验结果,得到的床层表观动力学可用于苯氧化反应过程的开发研究。
短句来源
     Threee dimensional temperature distributions of unsteady states in several simplify boundary conditions in common use for a 300MW unit's drum made in China have been calculated by F. E. M.
     通过对某国产300MW机组锅炉锅筒在启动过程中的温度分布进行三维非稳态变物性材料不均匀导热问题有限元分析,得出了在常用简化温度边界条件下的温度分布,并讨论了制订标准时材料定性温度的选取
短句来源
  相似匹配句对
     T is temperature, ℃.
     T为温度,℃。
短句来源
     Measure of Temperature
     温度的测量
短句来源
     The temperature dependence of the critical field predicted by our theory agree qualitatively with the experiment.
     理论给出的临界磁场随温度T的变化,在定性上与实验相符。
短句来源
     The first is the qualitative analysis.
     第一、定性研究。
短句来源
     An APProach to Qualitative Decision-making Modeling
     定性决策模型初探
短句来源
查询“定性温度”译词为用户自定义的双语例句

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  qualitative temperature
The Tl method is the easiest method of visualisation of qualitative temperature distribution and quantitative measurement seems possible in the tissue surrounding the tumour up to a temperature of 45-65°C.
      
We obtain the qualitative temperature dependence of the second harmonic amplitude; the amplitude goes to zero when the temperature reaches the Curie point.
      
Capture theories should then provide a qualitative temperature behaviour of the reaction rate constant.
      


An experimental investigation was made of temperature gradients in air streams being cooled while flowing through a cylinder of diameter 81 mm packed with high thermal conductivity (iron and copper) and low thermal conductivity solids of spheres, cylinders and Raschig rings. From the measured temperature gradients at various bed depths and radial posi-tions, and for the different particle sizes and flow rates, the effective thermal conductivity Ke, and the heat transfer coefficient of the wall hw, were determined...

An experimental investigation was made of temperature gradients in air streams being cooled while flowing through a cylinder of diameter 81 mm packed with high thermal conductivity (iron and copper) and low thermal conductivity solids of spheres, cylinders and Raschig rings. From the measured temperature gradients at various bed depths and radial posi-tions, and for the different particle sizes and flow rates, the effective thermal conductivity Ke, and the heat transfer coefficient of the wall hw, were determined by the integral, graphical and the direct-current electric analog methods.

作者用低导热系数(包括玻璃、磁)的球体、圆柱体、环柱体与高导热系数(包括铜、铁的球体,圆柱体为填充物,以空气为传热介质,使其在管径为81毫米之填充床层内冷却,改变流体流量,床层高度及填充物大小,通过试验测出在不同的条件下床层的径向温度分布,并应用积分法、直流电模拟计算法及图解法求得床层的有效导热系数及管壁薄膜传热系数.在试验范围:低导热系数填充物D_P/D_t自0.074—0.254;高导热系数填充物D_p/D_t自0.12—0.2,L/D_t自5—15,Re汇数自130—1400,即直线速度自0.5—1.6公尺/分,若以床层进出口平均温度之数学平均值为定性温度,则床层之有效导热系数及管壁薄膜传热系数可分别归纳于下式:低导热系数填充物:K_e=0.182(D_t/D_p)~(0.45)Re~(0.75),h_w=65e~(-4)(D_p/D_t)(K/D_t)((D_t/L))~(0.2)Re~(0.4)高导热系数填充物:K_e=0.3k(D_t/D_p)~(0.6)Re~(0.72),h_w=5.1(K/D_t)(D_t/D_p)~(0.8)(D_t/L)~(0.1)Re~(0.46)填充物形状...

作者用低导热系数(包括玻璃、磁)的球体、圆柱体、环柱体与高导热系数(包括铜、铁的球体,圆柱体为填充物,以空气为传热介质,使其在管径为81毫米之填充床层内冷却,改变流体流量,床层高度及填充物大小,通过试验测出在不同的条件下床层的径向温度分布,并应用积分法、直流电模拟计算法及图解法求得床层的有效导热系数及管壁薄膜传热系数.在试验范围:低导热系数填充物D_P/D_t自0.074—0.254;高导热系数填充物D_p/D_t自0.12—0.2,L/D_t自5—15,Re汇数自130—1400,即直线速度自0.5—1.6公尺/分,若以床层进出口平均温度之数学平均值为定性温度,则床层之有效导热系数及管壁薄膜传热系数可分别归纳于下式:低导热系数填充物:K_e=0.182(D_t/D_p)~(0.45)Re~(0.75),h_w=65e~(-4)(D_p/D_t)(K/D_t)((D_t/L))~(0.2)Re~(0.4)高导热系数填充物:K_e=0.3k(D_t/D_p)~(0.6)Re~(0.72),h_w=5.1(K/D_t)(D_t/D_p)~(0.8)(D_t/L)~(0.1)Re~(0.46)填充物形状对K_e及h_w的影响,仅需将D_p用 D’_p代替,同时把K_e式中之常数0182及03各改为0.22及0.38即可.直流电模拟计算法系利用电压表示温度,电阻表示传热阻力,电流表示热的流动,是简单的模拟计算机的一种,它在近代工程上的应用日渐广泛,有了传热数据应用它来求床层的温度分布异常方便.

The behavior of the oxidation reaction of benzene over vanadium oxide catalysts has been studied in a packed bed tubular reactor. The rate data were correlated by wall temperature of the reactor as a characteristic parameter. This apparent kinetics analysis can be used both for research and process development of benzene oxidation processes. The further oxidation of maleic anhydride in homogenious phase and/or a non-catalytic pellet bed have been studied in a flow reactor. As a half order reac-tion, the rate...

The behavior of the oxidation reaction of benzene over vanadium oxide catalysts has been studied in a packed bed tubular reactor. The rate data were correlated by wall temperature of the reactor as a characteristic parameter. This apparent kinetics analysis can be used both for research and process development of benzene oxidation processes. The further oxidation of maleic anhydride in homogenious phase and/or a non-catalytic pellet bed have been studied in a flow reactor. As a half order reac-tion, the rate constant and apparent activation energy have also be estimated for the oxidation of maleic anhydride.

本文以V_2O_5为主的固体催化剂,研究了苯催化氧化制顺丁烯二酸酐(简称顺酐)的反应特征。以铜块温度作为定性温度分析单管试验结果,得到的床层表观动力学可用于苯氧化反应过程的开发研究。还研究了顺丁烯二酸酐深度氧化反应动力学。顺酐的均相氧化反应速率为: r=7.12×10~6 exp[-28300/RT]C_M~(1/2) 工业反应过程的开发研究中,为确定反应器设计要求及操作条件,必须掌握反应特性和传递规律。用数学模型方法进行工业反应过程开发,对反应特性的了解,要研究反应的动力学。对传递特性要研究催化剂颗粒内部、催化剂颗粒和流体间、床层径向和轴向的传质传热规律。如果能测得正确的反应本征动力学,而对催化剂颗粒内的传递规律不太清楚,则难以应用数学模型方法进行开发。对气—固催化强放热复杂反应,实际上难以获得准确的颗粒动力学。而由苯催化氧化预实验得知,顺酐深度氧化存在着均相氧化反应,因此更难以在实验装置上测得准确的本征动力学。本文则采用单管试验研究反应和传递的综合结果,分析反应特征。同时对顺酐的深度氧化过程进行了详细的考察。为反应过程分析和操作条件的选择提供依据。

Threee dimensional temperature distributions of unsteady states in several simplify boundary conditions in common use for a 300MW unit's drum made in China have been calculated by F.E.M.,considering variations of characteristic and uneven material.The characteristic temperature of material in standard formulating was discussed.

通过对某国产300MW机组锅炉锅筒在启动过程中的温度分布进行三维非稳态变物性材料不均匀导热问题有限元分析,得出了在常用简化温度边界条件下的温度分布,并讨论了制订标准时材料定性温度的选取

 
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