查询词典 air temperature

The method of CFD numerical simulation is employed to replace experimental investigation. Hence, STAR-CD of the commercial software is used to simulate the outer flow field and heat transfer performance of integrated heat sink with heat pipes cooled by airflow. It is found that simulated results agree with experimental results well, which indicates that simulation method is reasonable and reliable. Further, simulated computations for different fin thickness, fin pitches and air velocities are performed to analyze their effects on heat transfer performance of heat sink. Finally, a new optimized structure of integrated heat sink with heat pipes is provided to meet future demands for cooling CPU and its heat transfer is also evaluated. For multi-heat source and higher dissipation power of electronic devices, the integrated heat sink with heat pipes attatched fins stagged in different positions of channels is presented and its flow and temperature fields are also simulated to enhance heat transfer. As a conclusion, all mentioned above are useful for the design of heat sink with excellent efficiency of heat dissipation and further research.

应用商业软件Star-CD对CPU集成热管散热器的外部流场和传热特性进行了数值模拟，将数值模拟结果和试验结果对比，验证了所提出的数值计算方法是可靠和可行的；利用此数值模拟方法对CPU集成热管散热器在不同散热翅片间距、厚度和气流速度下散热器的流动与传热性能进行了数值计算，分析了这些参数的变化对散热器传热性能的影响；针对未来CPU冷却的要求，确定了与最优气体流速匹配的最佳翅片间距、厚度的CPU集成热管散热器的新结构；利用试验评测了根据数值模拟提供的新结构开发出的新CPU集成热管散热器的传热性能；最后在场协同强化传热的理论的基础上，对CPU集成热管散热器的散热翅片错位排列来强化散热器的散热，满足未来大功率、多热源的电子元件的散热，为今后进一步优化散热器提供了依据。

The results show that the sulfurized products have great oxidation tendency. With the increase of sulfidation temperature, sulfidation time and air speed, the oxidation tendency increase. And the existence of water has remarkable influence on the oxidation tendency of sulfurized products.

结果表明，干燥的H2S气体能和铁的氧化物发生硫化反应，硫化产物有较高的氧化自燃性，水浴温度高，硫化反应时间长，氧化时空气流速快以及水分的存在能明显加大自燃性。

Meanwhile, the partial steam pressure is much lower than the total pressure of steam and air mixture and the corresponding condensation water temperature declines dramatically, so the condensation water in this zone supercools further.

在抽气口附近，空气所占的重量百分比可达50—60%，此时，蒸汽分压力大大低于混合气体的总压力。

This article has first designed the hardware of the examination system, chose the appropriate hardware system according to the special production environment and the technics requirement of the Steaming stereotypia. Owing to production line work condition very severe, the temperature and pressure of the air is high, moreover included many corrosive chemical substance, the general industry camera was unable to work in this condition, so it must indirectly obtain a wiredrawing position image through the special lens, then transmitted to the CCD camera by the optical fiber. Transmit the image information to the PC system through the data-acquisition board. analysis the image information by the image-processing software, again send analysis result to the controller.

本文首先对检测系统进行了硬件设计，根据汽蒸定型的特殊生产环境和工艺要求选择了合适的硬件系统，由于生产线的作业条件非常恶劣，空气高温高压，而且含有许多腐蚀性的化学物质，一般的工业摄像机无法工作，只能通过特种镜头间接获得拉丝点位置的图像，然后通过光纤传送到CCD摄像机，拍摄到的图像信息通过图像采集卡传输到PC系统，由图像处理程序对图像信息进行分析，再给控制器输出分析结果。

On the basis of an analysis of the main causes leading to a boiler waterwall high-temperature corrosion in a tangentially-fired furnace it is concluded that a rational air distribution and proper adjustment of combustion regimes represent the basic measures to prevent the above-cited corrosion.

分析了切向燃烧锅炉水冷壁高温腐蚀的主要原因，认为合理配风、调整燃烧是防止高温腐蚀的根本措施，着重介绍了新型实用专利水平浓淡风煤粉燃烧器的基本原理，指出水平浓淡风煤粉燃烧器可有效防止高温腐蚀的发生。

The effects of coagulation bath temperature and air gap distance on the surface structure, cross section structure and water flux of membranes were discussed.

分析了凝固浴温度及空气间隙距离对膜的表面孔结构、断面结构和其他性能的影响。

The processing parameters include the plating bath pH value,current density,air agitation and bath temperature.

详细介绍了焦磷酸盐镀铜工艺的前处理过程，讨论了镀液pH值、电流密度、空气搅拌及温度等工艺条件对镀层质量影响。

It showed that the crucial factors for membrane preparation were evaporation time in the air and water bath temperature, which can effected on the morphologies and electrochemical performances of the membranes.

正交实验结果分析表明，工艺条件中静置时间和水浴温度为主要影响因素，并研究了这两个因素对隔膜形貌和电化学性能的影响。

The inner temperature of forest belt has the closer correlations with its width and plant coverage degree, so there is an important significance to improve its inner air humidity by keeping forest belt with a certain coverage degree and width.

灌草带内的温度状况与带的宽度和植物盖度密切相关，保持梭梭灌草带一定的盖度和宽度，对改善梭梭灌草带内空气湿度状况具有重要意义。

Diaphragm control valve with the steam temperature switch, play blocking air drainage.

膜盒随蒸汽温度变化控制阀门开关，起到阻汽排水作用。

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。