传热

The optimized combustion chamber accelerates the transferring speed of the flame, prevent the deflagrating, even the heat transfer on the piston and lower the amount of the exhausting gas.

优化设计的燃烧室，加快了燃烧过程中火焰的传播速度，有效防止爆燃的产生，使活塞传热更加均匀，排放更低。

A process for manufacturing seamless flux-cored welding wires 0.8 to 4 mm in diameter with excellent cracking resistance and primer proof quality and containing very little diffusible hydrogen suited for the welding of high-tensile steels and steel structures subjected to large restraining forces by dehydrogenating by high-temperature heating comprises the steps of heating a straight wire 8-15 mm in diameter by direct electric heating through a first and a second pair of roll electrodes spaced 2 to 5 m apart and a ring transformer disposed therebetween to a temperature between 620 and 1100 degrees Centigrade, cooling the heated wire to a temperature not higher than 500 degrees Centigrade with a coefficient of heat transfer not higher than 250 kcal/m2 h degree Centigrade, and drawing to the desired diameter.

一种用来制造直径0.8至4mm的、具有优异的抗裂缝力和底层涂料防护质量并含有非常少的扩散氢的、适合于焊接高强度钢和承受大约束力的钢结构的无缝药芯焊丝，通过用高温加热进行脱氢处理来制造的工艺包括步骤：通过经布置成相隔2至5m的第一和第二对辊电极并经布置在它们之间的环心变压器的直接电加热，把直径8至15mm的直焊丝加热到620与1100℃之间的温度；用不高于250kcal／m2h℃的传热系数把已加热焊丝冷却到不高于500℃；以及拉伸到想要的直径。

Theconclusion that the refrigeration effect is proportional to the demagnetizing factor Dagitates us to chose film as working substance for its good thermal conductivity andstrongest demagnetization effect.

考虑到薄膜利于传热，而且在垂直场时的D最大，如果利用几种不同工作温度的超导体薄膜进行多级制冷，可以估计I类超导体在极低温下的磁制冷效应应该是很有应用前景的。

On the basis of computational heat transfer and computational combustion,author disperses the control equations.

以目前在计算传热学、计算燃烧学中普遍使用的控制容积法为基础，对偏微分方程进行了离散化处理。

The characteristic of vehicle headlights thermal conduction and the principle of its fogging problem are analyzed in this paper.

本文分析了车灯的传热特性以及车灯结雾问题的原理。

Various value of mass transfer number and the oxidizer mass flux were considered in the calculation. The regression rate of the solid fuel was formulized based on the calculation.

为了深入了解混合燃烧的机理，在1963年由Marxman等[3]提出了基于边界层燃烧的对流传热控制模型，该模型假定燃烧发生在固体燃料升华表面上的边界层中的一个相对薄的火焰层中。

A numerical simulation method is used to investigate the cooling and humidifying effects of wetlands. A mixture model was adopted to simulate the flow and diffusion of air and moisture, which describes the process of heat and mass transfer.

采用数值模拟方法研究湿地对周边区域空气的降温增湿效应，建立了空气、水气的流动与扩散混合模型，描述给定空间的传热传质过程。

System uses atmosphere as low temperature heat source.It imbibes heat from atmosphere by evaporation of the refrigerating medium in vaporizer and transfers the heat to phase change materials by heat transfer unit then transfers the heat to cool water from cool water pipe.

它利用空气作为低温热源，由蒸发器内制冷剂的蒸发来吸收空气中的热量，通过传热盘管将热量传递给相变储能材料，获取盘管承压，使贮罐形状不受压力容器限制贮能。

The results indicated that the interdigitated design of flow channel enhanced the mass transport of gases in porous media and improved the output performance of fuel cell.

模型详细考虑了电池内部的传热、传质和电化学反应，重点考察了多孔介质内的组分传递和膜内水的电渗和扩散作用，对氧气传递限制和膜内水迁移对电池性能的影响进行了分析和讨论。

Heat transfer coefficients in a packed bed have been investigated by Leva and beck .

填充床的传热系数已由利瓦和贝克作过研究。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐