传热

The heat transfer and burning behavior of the intumescent fire-retardant polypropylene were studied by the cone calorimeter to establish an essential physical model for the intumescence process in fire.

通过对膨胀阻燃聚丙烯材料在锥形量热仪实验条件下燃烧的分析和研究，建立了能够描述膨胀阻燃材料升温、燃烧过程的传热传质数学模型，分析了传热传质对材料裂解行为的影响。

According to Fourier's law and Kirchhoff's law, a mathematical model of prebaked anode current and temperature fields of aluminum reduction cell was built.

根据傅里叶传热定律和基尔霍夫导电定律，建立了预焙阳极铝电解槽阳极传热、导电的数学模型。

With this model,the temperature growth process and temperature distribution of unit wall of epoxy resin,7740# glass,microcrystal glass and silicon units filled with lead styphnate were obtained by numerical simulation.

根据燃烧传热原理，建立了阵列单元燃烧传热过程的一维有限差分模型，运用此模型对装填斯蒂酚酸铅的7740玻璃、环氧树脂、微晶玻璃和硅药室单元燃烧40~80 ms过程中室壁温度成长和温度分布进行了数值模拟。

Corrugated pipe ; numerical simulation ; heat transfer coefficient ; formula for heat transfer

波纹管；数值模拟；传热系数；传热准则方程

The heat transfer plates in the assemblies have spaced apart dimples for maintaining plate spacing and oblique undulations with the undulations on adjacent plates preferably extending at opposite oblique angles.

在组件(40)中的传热板(44，48)具有用以保持板的间距的相分隔开的凹坑(54，56)，该传热板还具有斜向的波纹，在相邻板上的波纹(52)优选地按相反的斜角延伸。

On the basis of the orthogonal experiment, nine groups of structure parameters of variable cross_section tube s are issued.

根据正交实验设计提出了 9种变截面管强化传热管的结构尺寸，并由实验结果回归得到了变截面管的传热与阻力关联式。

On basis of experimental investigation, this article analyzed flow and heat transfer characteristics between parallel plates packed with small particles.

在试验研究的基础上，分析了平行平板间填充小颗粒填料后的流动和传热特性，表明利用小颗粒填充强化板间对流换热，可以获得显著的传热强化效果，同时流动阻力的增加远小于微颗粒时，通过优化选择能够得到较好的强化收益。

Proposes a new method to calculate the heat transfer coefficients based on the superposition principle of heat flux i.

通过对热流相加法处理地面问题的分析，提出了一种新的用于计算底层地面传热系数的方法，即由热流量计算地面的当量传热系数。

Proposes a new method to calculate the heat transfer coefficients based on the superposition principle of heat flux i.e.using heat flux to calculate equivalent heat transfer coefficients.

通过对热流相加法处理地面问题的分析，提出了一种新的用于计算底层地面传热系数的方法，即由热流量计算地面的当量传热系数。

Take the opportunity of this project, theoretical and experimental researches on the high-efficiency evaporator used in a large quick-freeze equipment have been done. The main work of experimental research is as follows:(1) Compare and analyze the influences of structural parameters on the heat transfer coefficient of an evaporator. The calculation results show that, under non-freezing conditions, the structure possessing the highest heat transfer coefficient is the one with circular fins, equilateral-triangle arranged small tubes and varying fin-spacing.

主要做了以下几方面的试验研究工作：(1)对不同翅片形状、管径大小、翅片管排列方式，以及是否带波纹等结构参数对蒸发器传热系数的影响进行了比较分析，得出在不结霜工况下，具有最高传热系数的蒸发器结构是圆翅片小管径正三角形排列等节距结构的结论。

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。