查询词典 transfer coefficient

The results showed that compared to conventio nal smooth segment baffle heat exchanger,the plate heat exchanger can effec tively strengthen the film heat transfer coefficient of the shell side.

研究结果表明，与传统的光滑管弓形隔板换热器相比，板式换热器能非常有效地强化空气侧的膜传热系数。

It was shown by the resuLT of the test that the oxygen transfer coefficient was the highest when the ratio of the Area of the flow-increasing zone of the reactor to that of the flow-decreasing zone was 2/3,the height of the liquid level above the baffle plate and the height of the bottom cleArance were both 250mm and the filling ratio of filler was 50%.

研究结果认为在反应器的升、降流区面积之比为2/3，挡板上方液面高度和底隙高度均为25mm，填料的填充比为50%时，氧转移效率最高。

Research results show that the system performance is influenced greatly by the thermal conductivity of the activated carbon and the contact heat transfer coefficient.

因此为了能得到较高的性能系数和制冷量，首先应该使吸附材料活性炭的导热系数得到提高，其次才是考虑提高接触换热系数。

Surface tension effects on condensate retention angle and condensation heat transfer coefficient of carbon dioxide were studied.

综述了水平低翅片管外凝结传热的基本模型，阐述了二氧化碳制冷剂的物性特点，讨论了表面张力与凝液滞留角及二氧化碳管外凝结换热系数的关系，分析了翅片密度、环形翅片管尺寸对翅片效率、滞留角、凝结换热系数以及传热增强比的影响，优化了外翅片管的齿高与齿距，并求得相应的强化传热增强比。

Da Niudi DF2 gas well study shows the average overall heat transfer coefficient drops from 43w/m2.k to 2.57 w/m2.k when the casing head pressure decreases from 16MPa to 0.11MPa.

大牛地DF2井计算表明：当套压由16MPa降低至0.1MPa，井筒总传热系由34 W/降为2.57 W/，井口流温由6.2℃上升至20.2℃，有效的防治水合物在井筒中生成

A mathematical model of the direct chill casting process for superlight Mg-Li alloy (LA141) slab has been developed using the finite differential method. Thermal boundary conditions including primary and secondary cooling conditions, have been selected based on knowledges of the physical process and the literatures. The variations of heat transfer coefficient between slab and dummy block interface resulting from the deformation of the slab have been considered.

中文摘要：运用有限差分法，对超轻Mg-Li合金（LA141）板坯直冷连铸过程温度场进行数值模拟，根据实际过程的物理现象以及文献资料确定包括一冷区、二冷区在内的边界条件，并且考虑底模与铸坯之间随着铸坯的变形而引起的换热系数的变化。

The heat transfer coefficient and friction factor of the draft tube of ALR were measured with air as single phase and tape water and air as two phase flow.

传热和阻力研究是在导流筒中用空气或空气和水的混合物进行的。

Simulation results show that the particle properties have significant influences on the bed-to-wall radiative heat transfer coefficient in CFB combustors.

模拟结果显示：温度场和表观气体速度对于稀相区床层与壁面之间的辐射传热系数有着重大的影响，而颗粒特性也对该系数有着不同程度的影响。

A three-dimensional model is developed to predict the bed-to-wall radiative heat transfer coefficient in the upper dilute zone of CFB combustors.

其次，在流动模型的基础上，论文发展了一个用来预测循环流化床锅炉稀相区床层与壁面辐射传热系数的三维模型。

In the case of film condensation, the total heat transfer coefficient of B30 circularly-grooved tube can increase 44%~ 95% compared with smooth tube; for TA2 circularly-grooved tube, it is 51%~64%. And the relevant flow friction inside the tube obviously increases.

在膜状凝结条件下，B30波槽管的总传热系数比光管的提高44％～95％；TA2波槽管的总传热系数比光管的提高51％～64％；而相应的管内冷却水流动阻力也有明显的增加。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。