相同雷诺数的槽板平均表面换热系数是平板的2～3倍，同时减小了流动阻力。
The grooves on the heated surface lowered the flow resistance and enhanced the film heat transfer coefficient 2-3 times that of flat plates.
同时对冷板的散热性能进行了测试，得到了冷板的平均换热系数和压力损失。
At the same time, the average heat exchange coefficient and the pressure loss of the cold plate have been tested.
当室内热源温度较高时，辐射板与热源的辐射换热量增大，辐射换热量为主导因素，因此应将辐射板布置在靠近高温热源的位置。
Otherwise, when the indoor heat source temperature is high, the radiation heat flux is the main factor and the radiant panel should be placed as near to the heat sources as possible.
虽然板式换热器各板间流速不等，但在换热和流体阻力计算时，仍以平均流速进行计算。
Although velocity varies among different plate, plate heat exchanger in the change of heat and fluid resistance calculation, is still at an average velocity to calculate.
板片型式或波纹式应根据换热场合的实际需要而定。
Plate type or corrugated type should be based on the actual needs of the heat exchange places.
提出一种计算非稳态气动加热下金属蜂窝板内辐射导热耦合换热数值计算方法。
A numerical method was presented for transient heat transfer processes in honeycomb sandwich panels used in metallic thermal protection systems (TPS) under aerodynamic heating.
为了使本发明既能制冷，又能制热，半导体制冷板上连接有一转换开关。
The semiconductor refrigerating board is equipped with a changeover switch, which makes the invention capable of both refrigerating and heating.
本文对空气流过镍、铜材料泡沫金属结构和2种板翅结构的对流换热进行了实验研究。
Forced convection heat transfer of air in nickel and copper metal foams and two mini - fin structures was investigated experimentally.
列管式换热器的换热管束与管板连接一般均采用焊接加胀接的密封固定工艺。
In general a sealing technology involving welding in combination with expand jointing is used for connecting a pipe column to a tube plate in a tubulature type heat ex- changer.
在受冷热介质压力作用的工作状态下，板式换热器换热板片、固定和活动压紧板间将产生鼓胀变形。
When plate heat exchangers work at the pressure of cold and hot medium, the exchanger thermal sheet spaces, the fixed active compressing plates produce deformation of bulging.
与相近孔隙率的锡青铜烧结多孔结构相比，该微细板翅结构中的流动阻力大大减小，而对流换热能力却增强。
The flow resistance for water and air flowing through the mini-fin structure was less, while heat transfer coefficient was higher than in the sintered bronze porous structure.
介绍了缀板梁结构体系在框架结构抽柱托换以及加层改造中的应用，并分析了该方法的优点以及设计时注意的问题。
The paper presents the application of batten-plate beam structure in removal columns from frame structure and adding stories. It analyses the advantages and the notices in design.
探讨了多管程结构以及换热管与管板焊接的焊缝对管板应力状态的影响。
It also probed into the effects of the of multitube pass structure and of the welding seams between heat exchangers and tubesheets on the stress of the tubesheets.
探讨了多管程结构以及换热管与管板焊接的焊缝对管板应力状态的影响。
It also probed into the effects of the of multitube pass structure and of the welding seams between heat exchangers and tubesheets on the stress of the tubesheets.
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