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nonideal solution
相关语句
  非理想溶液
     Vapor-Liquid Equilibrium Equation for Some Nonideal Solution and Its Application
     某些非理想溶液的汽液相平衡方程及应用
短句来源
     The Optimum Design of Distillation for Nonideal Solution
     非理想溶液精馏优化设计
短句来源
     A simple phase equilibrium equation for some nonideal solution was presented Undefined coefficients of phase equilibrium equation were solved using the linear least square method The equilibrium composition calculated with this equation was in agreement with experimental data The more vapor-liquid equilibrium relations for nonideal solution were described approximately with this equation, and the equation of Yu Guocong and Coull J The formula for calculation minimum number of theoretical plates and minimum number of mass transfer units was derived by this equation The applications of this equation to distillation were discussed
     提出一个简单的相平衡方程描述某些非理想溶液的汽液相平衡关系- 用线性最小二乘法确定方程中的待定系数, 由该方程计算的汽液相平衡组成与实验值较吻合- 将该方程与余国琮和CoullJ方程结合, 可以近似地表示更多的非理想溶液的汽液相平衡关系- 利用该方程导出了计算最少理论板数和最少传质单元数的公式, 并讨论了该方程在精馏计算中的若干应用
短句来源
     The examples showed that the optimum parameters of continuous distillation for binary nonideal solution were obtained easily and quickly with those methods.
     算例表明用本方法可迅速、方便求出二元非理想溶液连续精馏最优设计参数
短句来源
  非理想溶液
     Vapor-Liquid Equilibrium Equation for Some Nonideal Solution and Its Application
     某些非理想溶液的汽液相平衡方程及应用
短句来源
     The Optimum Design of Distillation for Nonideal Solution
     非理想溶液精馏优化设计
短句来源
     A simple phase equilibrium equation for some nonideal solution was presented Undefined coefficients of phase equilibrium equation were solved using the linear least square method The equilibrium composition calculated with this equation was in agreement with experimental data The more vapor-liquid equilibrium relations for nonideal solution were described approximately with this equation, and the equation of Yu Guocong and Coull J The formula for calculation minimum number of theoretical plates and minimum number of mass transfer units was derived by this equation The applications of this equation to distillation were discussed
     提出一个简单的相平衡方程描述某些非理想溶液的汽液相平衡关系- 用线性最小二乘法确定方程中的待定系数, 由该方程计算的汽液相平衡组成与实验值较吻合- 将该方程与余国琮和CoullJ方程结合, 可以近似地表示更多的非理想溶液的汽液相平衡关系- 利用该方程导出了计算最少理论板数和最少传质单元数的公式, 并讨论了该方程在精馏计算中的若干应用
短句来源
     The examples showed that the optimum parameters of continuous distillation for binary nonideal solution were obtained easily and quickly with those methods.
     算例表明用本方法可迅速、方便求出二元非理想溶液连续精馏最优设计参数
短句来源
  “nonideal solution”译为未确定词的双语例句
     The partitioning equilibrium model was modified taking account of the nonideal solution behavior of the amino acid solution caused by the ionic strength effect.
     系统地分析了离子强度对色氨酸分配平衡的影响 ,考虑氨基酸溶液非理想行为的离子强度效应 ,对分配模型进行了修正。
短句来源
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  nonideal solution
The analysis is conducted within the framework of isotropic isobaric-isothermal diffusion in a two-component, single-phase diffusional region for a nonideal solution with an atomic volume depending on the composition.
      
Excess Gibbs Energy of Mixing for Organic Carbonates from Fitting of Their Binary Phase Diagrams with Nonideal Solution Models
      
This study extends a model for nonideal solution behavior by considering the temperature dependence of the coefficients in the Wilson equation for the aqueous ammonia system.
      
Micelle polydispersity and nonideal solution behavior are discussed as possible explanations for this discrepancy.
      
The wüstite solid solution has been modeled as a nonideal solution of three end members; FeO, FeO1.5 and MgO.
      
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The interface adsorption and micelle formation of the mixed solution of fluorocarbon and hydrocarbon surfactants (7CFNa and C_8NBr, C_(10)NBr, C_(12)NBr mixtures) have been investigated. The surface tension and interfacial tension of the mixed solution have been determined by the drop-volume method (the ionic strengths of the solution are kept constant in 0.1 mol~(-1)L by adding NaBr).By applying the Gibbs adsorption equation and using nonideal solution theory, the total adsorption amount and the individual...

The interface adsorption and micelle formation of the mixed solution of fluorocarbon and hydrocarbon surfactants (7CFNa and C_8NBr, C_(10)NBr, C_(12)NBr mixtures) have been investigated. The surface tension and interfacial tension of the mixed solution have been determined by the drop-volume method (the ionic strengths of the solution are kept constant in 0.1 mol~(-1)L by adding NaBr).By applying the Gibbs adsorption equation and using nonideal solution theory, the total adsorption amount and the individual adsorption amounts of each surfactant have been obtained. It has been shown that (I) at the surface the adsorption rules of various systems are essentially the same. At the heptane/water interface, the adsordtion rule of 7CFNa-C_3NBr syatem is similar to that at the surface, for 7CFNa-C_(10)NBr mixture the amount of satuatcd adsorption increases with increase in the molar ratio of any one surfactant from the 1:1 ratio at which the saturated adsorption amount is the least. However, the saturated asorption amount for 7CFNa-C_(12)NBr system decreases with decrease in the mole ratio of 7CFNa in the mixture the adsorption rule is contrary to that at the surface; (2) The surfactant mixture has a very high interracial activity. The efficiency of surface tension decreases and the effectiveness of surface tension increases with the increase in ydrocarbon chain length in cationic surfactants.

测定了一系列不同比例的C_7F_(15)COONa与阳离子表面活性剂(C_3H_(17)N(CH_3)Br、C_(10)H_(21)N(CH_3)_3Br和C_(12)H_(25)N(CH_3)_3Br)混合水溶液(加NaBr,恒离子强度μ=0.1mol kg~(-1))的表面张力及正庚烷/水溶液界面张力。结果表明:在表面上,随阳离子表面活性剂碳氢链长增加,各体系同一比例的饱和总吸附量增大。界面上,7CFNa~C_8NBr体系的吸附规律与表面相似;7CFNa~C_(10)NBr体系饱和总吸附量在1:1时最小;而7CFNa~C_(12)NBr体系,其饱和吸附量随7CFNa比例减小而减小。混合物的表(界)面活性均比单一表面活性剂高。随着阳离子表面活性剂碳氢链增加,混合溶液降低表面张力的能力有所下降,而降低表面张力的效率有所提高,自表面吸附层结构与表面张力的关系对比作了说明。

For distillation of such nonelectrolyte and nonideal solutions as hydrocar-bons, steady-state modelling can be rendered by the well-known UNIF AC Group Contribution Method; and posed thereupon in this paper is an optimal simulation software with overall energy efficiency as objective function, which can be of use in CAD of processes as such. The software thus acquired has been applied in computer optimal control of acetahyde distillation and proved of significant rise in energy efficiency.

基子UNIFAC功能团法的精馏塔静态数学模型,可通用于烃类等非电解质非理想溶液的精馏计算,本文在此基础上.提出一个以总能耗为目标函数的优化仿真软件,它可作为一类精馏塔操作条件的计算机辅助设计的应用软件,并成功地应用于乙醛塔的计算机优化控制,取得了显著的节能效果.

Distillation with simultaneous chemical reaction represents a special area of distillation technology, and its economical advantages have been proved. The objective of this study is to present a computation method for handling chemical reaction in an equillibrium stage device. Reported here is a technique based on the Newton-Raphson method for solving the model equations which describe distillation with simultaneous reaction. Mole fractions of components x_(ij) and vapour flow rates V_i on eaeh stage are selected...

Distillation with simultaneous chemical reaction represents a special area of distillation technology, and its economical advantages have been proved. The objective of this study is to present a computation method for handling chemical reaction in an equillibrium stage device. Reported here is a technique based on the Newton-Raphson method for solving the model equations which describe distillation with simultaneous reaction. Mole fractions of components x_(ij) and vapour flow rates V_i on eaeh stage are selected as iterative variables. An outer iteration loop and an inner iteration loop are involved. The inner loop is for x_(ij) and the outer one for V_j. The Newton-Raphson method is used for the convergence of the inner loop with material balance equations being residual functions, this procedure is suitable for highly nonideal solutions. A rapid and stable convergence is achieved without the use of damping factors. Numerical examples are presented.

通过选择合适的迭代变量和分层迭代的方法,提出了一种计算机内存少、机时省且稳定收敛的板式反应精馏塔的数学模拟算法。该算法将模型方程分成内外两层迭代求解。内层以塔板上各组分的液相浓度为迭代变量,以物料衡算方程为残差函数,用Newton-Raphson法求解;外层以各板上汽相流量为迭代变量,用直接迭代法求解焓平衡方程。该算法能适用于非理想性较强,反应级数高于一级的系统。并附计算实例。

 
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