蒸发率

车载LNG储罐蒸发率的理论与试验

Experiment and theory of evaporation rate in cryogenic cylinder of LNG vehicle

以一个16万立方米的LNG储罐为研究对象对储罐罐底、罐顶和罐壁分别进行了漏热计算，根据日蒸发率计算了储罐的许用漏热量。

Taking 160,000 m3 LNG tank as a research object , it makes heat leak calculation on tank bottom , top and wall respectively and reckons the allowable heat leak according to the tank daily evaporation rate .

零蒸发率MRI用闭式循环制冷机及其插入式接口

4K Refrigerator and Inserted - type Interface Used for MRI

以充满率为90%的210L小型杜瓦为例，测试了日蒸发率的变化规律。

Daily evaporation rates of a 210L small-size high-vacuum multi-layer insulated dewar with 90 % liquid nitrogen were measured .

在内杜瓦瓶温度～70K、场强为10T时，液氦蒸发率为1.3&1.6升/小时之间。

At 10T field strengh , when the temperature in the inner dewar is at 70 K , the loss rate is in the range of 1.3-1.6 liters per hour .

结果蒸馏水样品在该系统内、外存放24h，0.5ml和1.5ml样品杯的平均蒸发率差异均有非常显著性（P<0.01）。

Results The mean evaporation rates of distilled water contained in 0.5 ml and 1.5 ml sample cups after 24 h storage in this system or in the environment were significantly different ( P < 0.01 ) .

它用G-M制冷机将液氦恒温器的幅射屏及热支承处冷却至85K以下，使外界传入的热量为最少，以足够低的液氦蒸发率使液氨得以长时间保存。

The radiation shields and insulation supports of the cryostat were cooled below 85K by a G-M refrigerator so that the h-eat from the environment can be minimized and the evaporation rate is the lowest , which the liquid helium , can be stored for a longer time .

小型高真空多层绝热杜瓦日蒸发率性能研究

Study on the daily evaporation rate of high-vacuum multilayer insulated dewar

液化天然气储罐蒸发率试验和计算

Experiment and calculation on evaporation rate of LNG tank

低温容器标准蒸发率的计算

The Calculation of Standard Loss Rate of Cryogenic Vessels

经测量，其日蒸发率小于1.1%。

The measurement shows that the daily evaporation rate is lower than 1,1 % .

低温杜瓦日蒸发率随压力变化规律研究

Study on the change of daily evaporation rate with storage pressure of cryogenic Dewar

低温绝热气瓶压力对日蒸发率的影响规律研究

Study on The Effect of Storage Pressure on The Daily Evaporation Rate of Cryogenic Cylinder

日蒸发率是评价高真空多层绝热杜瓦保冷性能最重要的技术参数。

Daily evaporation rate is an important technology parameter to evaluate the heat-insulating property of cryogenic dewar .

另外，还提出了一种基于误差反馈的节点函数特性变化模糊神经网络逼近器和新的数据浓缩度量指标&数据蒸发率。

Additionally , a new FNN approach method and a criterion about the data enriching were presented .

有效导热系数对低温容器日蒸发率的影响

Boxing Day The Low Temperature Electrochemistry Effect of the Effective Thermal Conductivity on the Evaporativity of Cryogenic Tank

液氮的日蒸发率分别小于0.5、0.72与0.88升/日。

The boiloff rales of liquid nitrogen are less than 0.55,0.72 , and 0.88 liters / day respectively .

新型绕带式液氢高压容器的传热分析和蒸发率计算

Analysis of heat transfer and calculation of evaporation rate of flat steel ribbon wound liquid hydrogen high pressure vessel

在干燥部的中前段，相对水分蒸发率随烘缸数增加呈线性增加。

Computational results show that the reduction of water content is realized mainly in the period of free moving .

后几排孔的蒸发率接近100%，喷汽量与开孔面积成正比。

The vapor flow is proportional to the outlet area as the evaporativity is 100 % for the final holes .

结果表明，燃油温度、燃油油膜厚度以及空气流速对燃油蒸发率的影响较大。

The results show that fuel temperature , fuel film thickness and air flow rate affect the fuel evaporation greater .

蒸发率随容器的设计和储存产品的体积而变化。

Rates of vaporization vary , depending upon the design of the container and the volume of the stored product .

试验结果表明，有效孔隙度越小，蒸发率越低。

The test results show that , the smaller its effective porosity is , the lower its evaporating ratio is .

蒸发率和降水再循环率在20年中均有增加的趋势，这可能与气候变暖有关。

Both Evaporation and precipitation recycling increase during the 20 years , which may be the results of climate warming .

蒸发率、降水率和降水再循环率在20年中均有增加，表明气候变暖对我国北方地区的水汽循环的影响已经显现。

Evaporation , precipitation and recycling ratios increase during the20 years , which may be the effect of the climate warming .

计算结果表明，自由行走阶段水分的蒸发率大于纸在烘缸表面的蒸发率；

The temperature and moisture of the paper web during it contacts with the cylinder surface and moves freely were computed .

该文对日蒸发率的影响因素进行了总结，重点介绍了储存压力和环境温度对日蒸发率的影响。

In this paper , several factors affecting the daily evaporation rate are introduced , especially the storage pressure and environmental temperature .

以气液密度比、体积蒸发率相等为相似准则，试验研究了循环特性、冷包液位、截面含气率与热负荷的关系。

The circulation characteristics , liquid level and void fraction in the moderator cell against the variation of the heat load were studied .

不过研究人员也强调气候变化也是一大因素，说持续上升的气温正改变着降雨类型，也在增加水分的蒸发率。

But the researchers highlighted the contribution of climate change , saying that rising temperatures were altering rainfall patterns and increasing rates of evaporation .

抑制蒸发率随着储水定额的增大而呈明显减小的趋势（P<0.05），储水定额越大，日均蒸发量就越高。

The anti-evaporation rate was reduced and the daily evaporation was increased with the increase of storage irrigation norm ( P < 0.05 ) .