助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   group interaction parameter 的翻译结果: 查询用时:0.182秒
图标索引 在分类学科中查询
所有学科
化学
有机化工
更多类别查询

图标索引 历史查询
 

group interaction parameter
相关语句
  “group interaction parameter”译为未确定词的双语例句
     At present, the group interaction parameter matrix isn't perfect, and the prediction deviations are very big for asymmetric systems, e.g. for ethane/n-C36H74 using the UNIFAC-PR model, mean deviations for the calculation of bubble-pressure is 74.0%.
     目前,这一模型的基团能量参数矩阵极不完善,并且用于预测非对称的汽液平衡体系会产生很大的偏差,如UNIFAC-PR模型对体系C2H6/n-C36H74(373K)泡点压力的预测偏差高达74.0%。
短句来源
  相似匹配句对
     . group's.
     而且实验组的增量显著高于控制组的增量。
短句来源
     group.
     对照组给予胃乃安口服,每次 4 粒,每日 3 次。
短句来源
     The Interaction Characteristics of the Provisional Group
     临时性群体的互动特性
短句来源
     Interaction
     无穷互动
短句来源
     On Senior English Classroom Group Interaction
     高中英语课堂教学中的小组互动研究
短句来源
查询“group interaction parameter”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
没有找到相关例句


In this work, a pair of group interaction parameters, aCCOH, CHO and aCHO, CCOH, used in the UNIFAC group contribution method, has been supplemented from experimental vapor-liquid equilibrium data of iso-butanol iso-butaldehyde system available from literature[5]. The UNIFAC method has heen used in phase equilibrium calculations for systems of n-and iso-butanol purification process with accuracy approaching or attaining that of results calculated by NRTL and other correlations. In view of the fact...

In this work, a pair of group interaction parameters, aCCOH, CHO and aCHO, CCOH, used in the UNIFAC group contribution method, has been supplemented from experimental vapor-liquid equilibrium data of iso-butanol iso-butaldehyde system available from literature[5]. The UNIFAC method has heen used in phase equilibrium calculations for systems of n-and iso-butanol purification process with accuracy approaching or attaining that of results calculated by NRTL and other correlations. In view of the fact that the UNIFAC method is based upon the assumption of additive property of group properties, it is necessary to check the calculating results with a few experimental data and to make appropriate choice of the available group parameters.

本文通过异丁醇-异丁醛体系汽液平衡的文献数据,增补了用于UNIFAC法的一对a_(CCOH,CHO)和a_(CHO,CCOH)基团相互作用参数。用UNIFAC法推算有关正、异丁醇精制系统的各类相平衡数据,其计算精确度接近或达到NRTL等方程的关联结果。由于此法基于基团性质加和性的假定,因此在具体应用时必须慎重地选择参数值,并用实验数据进行检验。

This work shews that the modified UNIFAC model can be applied to organic chlorides for predicting mixing enthalpies and activity coefficients, but the group-interaction parameters must be estimated from h~E_(exp). On the basis of h~E_(exp), twelve pairs of new group-interaction parameters: CH_2/CCl, CH_2/CCl_3, CH_2/CCl_4, ACH/CCl, ACH/CCl_2, ACH/CCl_3, ACH/CCl_4, CCl_2/CCl_4, ACCl/CH_2, ACCl/ACH, ACCl/ACCH_2 and ACH/ ACNO_2 have been estimated. The results can be used to...

This work shews that the modified UNIFAC model can be applied to organic chlorides for predicting mixing enthalpies and activity coefficients, but the group-interaction parameters must be estimated from h~E_(exp). On the basis of h~E_(exp), twelve pairs of new group-interaction parameters: CH_2/CCl, CH_2/CCl_3, CH_2/CCl_4, ACH/CCl, ACH/CCl_2, ACH/CCl_3, ACH/CCl_4, CCl_2/CCl_4, ACCl/CH_2, ACCl/ACH, ACCl/ACCH_2 and ACH/ ACNO_2 have been estimated. The results can be used to predlict simultaneously mixing euthalpies and activity coefficients.

编制了UNIFAC修正模型的参数估算和h~E、γ_i的推算程序。在二元体系的实验数据基础上估算了参数,并据此对h~E和γ_i作相互推算,证明此修正模型可推广应用于有机氯化物,但模型参数须根据h~E_(exp)求得。本工作据h~E_(exp)估算出12对新的基团相互作用参数,它们兼有推算h~E和γ_i的功能。

In this paper the group concept and UNIFAC group contribution methodhave been discussed and extended.A method of on-line data processing forUNIFAC group interaction parameters based on the relevant componentproperties stored in data base has been proposed.Examples of predictingvapor-liquid equilibria for 22 systems by on-line processing parameters areco mpared with those by original(off-line)parameters,the accuracy of pre-diction is improved considerably.

本文对基团贡献思想进行了探讨和进一步扩展,提出了基团贡献法模型在线参数优化的方法,并应用非电解质体系汽液相平衡数据库(NEDB),对UNIFAC 基团贡献法活度系数模型进行了在线参数优化的研究。22个体系的汽液平衡计算实例表明,在线参数优化的方法一般能使UNIFAC 模型对汽液平衡的预测精度有较为显著的提高。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关group interaction parameter的内容
在知识搜索中查有关group interaction parameter的内容
在数字搜索中查有关group interaction parameter的内容
在概念知识元中查有关group interaction parameter的内容
在学术趋势中查有关group interaction parameter的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社