查询词典 heat flow

A 1-D flow discharge model for coolant blow-down and 1-D heat transfer model for afterheat removal aiming at TBM LOCA analysis are developed.

并为中国氦冷固体增殖实验包层模块冷却剂丧失事故分析开发了一维喷放和余热排除计算模型。

The correlations of heat transfer and pressure-drop in both refrigerant side and airside are elected. The computational units are divided along the evaporation process and the computation code is developed. The program is verified by the experiment results. 5 Six kinds of evaporators with different numbers of flow and passages arrangement were simulated.

建立了层叠式蒸发器的1维数值仿真模型，选取了制冷剂侧和空气侧的传热和阻力性能关系式，按蒸发器流程进行了单元体的划分并编制了计算程序，对2种层叠式蒸发器进行计算并与实验结果进行比较，验证了程序的可行性。

A distributed parameter model is proposed to simulate the airside heat transfer of the finned-tube evaporators in the frosting process. The variation of the evaporator structure, the frost thickness and humid air conditions along the flow path are taken into consideration.

建立了结霜条件下翅片管蒸发器空气侧流动和换热的分布参数仿真模型，模型考虑了蒸发器结构、霜层厚度以及湿空气状态等参数在气流方向的沿程变化。

The results indicate that the drag reduction and heat transfer reduction of drag-reducing fluid increase with increasing flow velocity and approach the asymptotes, and HTR is greater than DR all the time.

结果表明，减阻流体的减阻率和传热降低率随流速的增大逐渐增大到渐进值，而且传热降低率恒大于减阻率。

Detailed prediction of steam flow field and heat transfer process is significant for the rational design of condenser and the performance improvement of old style condensers.

详细预测凝汽器汽相的流动与传热特性对汽轮机凝汽器的合理设计和工作性能的改善以及老式凝汽器的结构改进具有重要的指导作用。

In addition, pores assist the easy flow of coolants to enable efficient and prompt removal of the heat generated during the grinding process.

另外孔隙帮助冷却液容易流动，从而使在磨削作业中产生的热量能有效而迅速地散发。

Therefore liquid CO_2 avoids gas-solid multiphase flow, and supplies continuous low temperature gas for cryoprobe. Experimental results show that the 2-dimension temperature distribution for the first time, it includes:(1) The cooling velocity and freezing zone increases along the flux up at certain size of the cryoprobe in the same biological tissue.(2) As the diameter of cryoprobe increases, the temperature will descend faster, freezing zone will be broader obviously, and ice ball become larger. Until it arrives heat balance, the temperature keeps invariability.(3) Single freezing-thaw results in biggish mechanical injury already for loosen tissue such as pork liver; Successive freeze-thaw circle could quicken freezing and thaw velocity for compact tissue, and it has proved the more mechanical injury of successive freeze-thaw circle than the single freezing-thaw treatment.

文中首次对生物组织进行了二维温度场分布实验研究，得出：(1)当刀头大小一定，对同一组织冷冻时，流量越大，降温速度越快，降温影响区域越大；(2)随着冷刀直径的增加，降温速度随着增加；温度影响区域明显增大；冰球直径也随着增大，热量平衡后温度几乎不随时间变化；(3)对于结构疏松组织比如猪肺脏，单次冻融对组织已造成较大的机械破损；对于结构较致密组织，多次反复冻融可以使降温和复温速率增加，单次冻融的热应力造成的机械破损较小，多次冻融后造成的机械破损比单次冻融所造成的机械破损大；(4)直喷式刀头比导热式节能约15％。

Flow of fluid, including liquid and mixture gas of vapor and air, is presented with Darcys law. Capillary transportation of liquid and diffusive transportation of vapor and air are considered in heat and mass transfer in porous media during drying.

液体和气体在多孔介质中的流动遵循达西定律，同时考虑了液体传输时的毛细效应和蒸汽与空气分子的相互扩散效应。

As the key element of the thermostatic valve the temperature sensing element plays the role of temperature sensing and force outputting.By absorbing the heat of the working fluid,the temperature sensing medium produces the capacity expansion which moves the regulating sleeve to control the fluid flow of input to control the temperature.

感温元件作为温控阀的关键元件起着感知温度和输出力的作用，感温介质吸收工作流体的热量产生体积膨胀，推动调节套筒调节进口冷热流体流量从而控制出口温度。

Experiments on characteristics of flow rate in electronic expansion valve running in an air cooled heat pump at certain conditions were carried out.

结合制冷系统的实际运行工况对电子膨胀阀流量特性进行了试验。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。