传热

It was the first time that experimental studies of the flow characteristics and convective heat transfer in platelet regenerative cooling channels with high aspect ratio were conducted in China.

大高宽比再生冷却套在宽度上已属于微小通道，为考察其流动传热是否与常规尺度管道不同，本文理论分析采用经典N-S方程而未考虑微小尺度效应是否合理，研究流道高宽比等几何参数对其水力和对流换热特性的影响，分别搭建了挤压式水力实验台和泵压式对流换热实验台，设计了d〓=1.0~1.2mm，宽度为0.6~0.8mm，AR=3~15的5个不同高宽比矩形通道层板试验件，采用线切割加工槽道和扩散焊接盖板的制造工艺，得到了质量可靠的试验件，以水为工质，在国内首次对大高宽比层板再生冷却通道的流动和对流换热特性进行了实验研究。

Concerning the physical process of the combustion and the heat transfer in the thrust chamber of the tripropellant liquid rocket engine, a numerical simulation method is developed about the interior combustion and the exterior regenerative cooling.

本文针对三组元液体火箭发动机推力室燃烧与传热的物理过程，对推力室内燃烧及外部再生冷却进行了仿真研究。

Hot air (5) is obtained through heat exchange of the cold air and the radiant heat flux.

本发明可高效接收辐射热和高效地向空气传热，同时利用自身的显热进行储热。

A simple radiant heat transfer model that treats the earth as a single point and averages outgoing energy.

简单的辐射传热模型中，地球是一单个点，它能均衡释出的能量。

Psia . The high combustion temperatures (4500 to 6500°R) and the high heat transfer rates (up to 100 Btu/in2-sec) encountered in a combustion chamber present a formidable challenge to the designer.

高燃烧温度（ 4500至6500 ° R ）和高传热率（高达100 btu/in2-sec ）中遇到的燃烧室，目前是一项艰巨的挑战，以设计师。

D. When the ratio of louver pitch to fin pitch is LP/FP=1.25, the integral performance of the louvered fin radiator is favourable.

分析百叶窗间距和翅片间距的比值对气侧传热和流动性能的影响，当百叶窗角度为27°，LP/FP=1.25 时，具有较好的综合性能； e。

When a trap inevitably fails, instead of simply draining the system's condensate, live steam is vented or condensate is allowed to pass back into the system, both of which inhibit heat transfer needed for process temperature control.

当一个陷阱必然失败，而不是简单地排水系统的冷凝水，活蒸汽冷凝水的排出或允许进入系统恢复，这两个抑制传热过程的温度控制所需。

When a trap inevitably fails instead of simply draining the system's condensate live steam is vented or condensate is allowed to pass back into the system both of which inhibit heat transfer needed for process temperature control.

当一个陷阱必然失败，而不是简朴地排水系统的冷凝水，活蒸汽冷凝水的排出或答应进入系统恢复，这两个抑制传热过程的温度控制所需。

Based on the enhanced heat and mass transfer mechanism of the falling film evaporation and the falling film condensation on horizontal tube and vertical tube,a new solar desalination system with four effect regenerations was designed.

基于横管与竖管降膜蒸发与降膜凝结的强化传热传质机理，设计建造了一台具有四效回热性能的小型低温多效式太阳能海水淡化系统，用电加热水箱模拟太阳集热系统，对该系统进行了模拟实验。

The correct coefficient of temperature difference can be taken as one, when this method is used to calculate the heat transfer coefficients of shield section.

结果表明，CRK法的计算误差小于传统计算方法，在进行遮蔽段传热计算时，错流温差校正系数可近似按l处理。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。