Adopting one kind new silicone rubber flat composite membrane to treat containing phenol wastewater, the influences of the feeding and stripping flow, temperature and salt ion strength on overall mass transfer coefficient (Kov) were investigated.
采用一种新的硅橡胶平板复合膜[聚二甲基硅氧烷(PDMS)/聚偏氟乙烯(PVDF)]处理含酚废水,考察了流量、萃取液pH值、料液浓度、系统温度、盐离子浓度对总传质系数(Kov)的影响。
The calculation result of overall mass transfer coefficients shows that the process of activated semi-cokes absorbing SO2 is controlled by inner diffusion or external diffusion separately at different stages,and belongs to.
对活化工业半焦吸附SO2进行了实验研究,利用实验数据获得了吸附过程的穿透曲线,计算了吸附过程的总传质系数;提出了时均传质系数概念,对工业半焦吸附SO2实验的时均传质系数进行了计算并与实验参数进行了关联。
An improved algorithm is proposed to overcome the disadvantages of conventional algorithm for overall heat transfer coefficient.
针对计算井筒总传热系数的常规算法的缺点,文章提出了一种改进算法,解决了常规算法在迭代过程中出现异常温度值和迭代依赖于初值选取这两个问题,在数学上严格地证明了改进算法具有与初值无关的迭代收敛性。
For the sake of holding the overall heat transfer coefficient change of Wei-Jing Oil Pipeline,optimizing the run program of the pipeline,economizing on energy for the pipeline run, the method of the soil thermal conductivity is applied for measuring the overall heat transfer coefficient of the pipeline.
为优化魏荆输油管道运行方案,实现管道节能运行,根据土壤导热系数的测定原理,应用土壤导热系数测定魏荆输油管道的总传热系数,介绍了探针法测量土壤导热系数的测量原理和方法,通过对现场管道测点定位和管道埋深测量,并对现场测量数据应用数值方法进行回归,得出了魏荆输油管道总传热系数的年平均值为1。
This paper determined the overall heat transfer coefficient in the Weigang-Jingmen oil pipeline with a heat balance method,analyzed the mensuration theory of the pipe overall heat transfer coefficient,brought forward a program to determine the overall heat transfer coefficent,and explained the spot mensuration method and process in the Weigang-Jingmen oil pipe overall heat transfer coefficient.
应用热平衡法测定了魏荆输油管道总传热系数,分析了管道总传热系数的测定原理,编制了输油管道总传热系数测定计算机程序,并说明魏荆输油管道总传热系数的现场测量方法和过程。
The transformation rate and volume transfer coefficient of D and T were determined at various temperature,gas and liquid flow rates.
采用Pt-SDB疏水催化剂和亲水填料混装进行含氘、氚氢气与水的液相催化交换实验,研究反应温度、气体流量和液体流量对D、T转化率以及H-D、H-T的总传质系数Kya的影响。
In the same temperature,the volume transfer coefficient.
结果表明:随着天然水流量的增大,开始时催化交换效率增大,而后趋于平稳;在相同的液体流量下,随着气体流量的增大,催化交换效率减小;随着温度的升高,催化交换效率增大;在同一温度下,随着液体流量的增大,气相总传质系数(Kya)没有什么明显的变化,而反应温度对Kya影响显著,高、低气体流速下两者的活化能相差很小。
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