冷却

Although newer plants recirculate water or use dry cooling, once-through cooling methods are the most common technology in use.

虽然新工厂分发水或使用干冰冷却，但是通过冷却的方法是最常见的技术。

The most important parameters involved in the design of the hot gas wall on a regeneratively cooled chamber are the thermal conductivity of the material, the strength of the material at elevated temperatures, the material maximum operating temperature and the coolant passage dimensions.

最重要的参数，参与设计的热气体墙就一再生冷却商会是热导率材料，材料的强度在高温下，材料的最高操作温度和冷却剂通过层面。

In the first chapter ,the thermal environment of scramjet and the inevitablility of regeneratively cooled scramjet,the history and state of art of the studies on regeneratively cooled scramjet an

本文第一章介绍了超燃冲压发动机燃烧室热环境和对发动机燃烧室采取再生冷却的必要性，研究了超燃冲压发动机再生冷却技术的发展和现状，并介绍了本文的研究内容。

In the first chapter ,the thermal environment of scramjet and the inevitablility of regeneratively cooled scramjet,the history and state of art of the studies on regeneratively cooled scramjet and regenerative cooling technology were described comprehensively.

本文第一章介绍了超燃冲压发动机燃烧室热环境和对发动机燃烧室采取再生冷却的必要性，研究了超燃冲压发动机再生冷却技术的发展和现状，并介绍了本文的研究内容。

Through the studies on the regeneratively cooled scramjet structure of tomorrow's advanced propulsion system of this paper, one thermal evaluation tool was developed. This dissertation provided the necessary means for the design of regenerative cooling channels of the scramjet.

通过本文围绕未来先进推进系统——超燃冲压发动机燃烧室再生冷却结构的研究，发展了热分析计算方法，初步建立了冷却通道的设计方法和工具。

Through the studies on the regeneratively cooled scramjet structure of tomorrows advanced propulsion system of this paper, one thermal evaluation tool was developed. This dissertation provided the necessary means for the design of regenerative cooling channels of the scramjet.

通过本文围绕未来先进推进系统——超燃冲压发动机燃烧室再生冷却结构的研究，发展了热分析计算方法，初步建立了冷却通道的设计方法和工具。

This configuration is flexible and steady and can simultaneously produce the cooling and repump light for 40K and 87Rb trapping and cooling experiment.

该装置可同时产生冷却40K和87Rb原子的冷却光和再抽运光，结构紧凑，工作稳定。

Then Rb cooling light, K cooling light and K repump light are injected into a semiconductor tapered amplifier in a master oscillator-power configuration.

该装置可同时产生冷却^40K-^87Rb原子的冷却光和再抽运光，结构紧凑、工作稳定。

The water chamber takes the shape of tilting cube, in favor of uniform distribution of cooling water on tube plate surface. The tube bundle is divided into two groups of zygomorphy according to the bisection system and it has eight support clapboards. The siphonopore center of each clapboard increases a certain distance corresponding to that of two tube plates and the cooling tube takes the shape of arch. The two-way cooling water of bisection flows through the condenser in opposite direction so as to improve the distribution of heat load for tube bundle. Around the throat of condenser, the final stage low-pressure heater, air extraction tube, intake device of bypass exhaust and the like are deployed.

它的特点是：水室呈倾斜立方体形状，有利于冷却水流在管板面上均匀分布；由于采用对分制，管束相应地分为左、右对称的两组，并且管束设有八块支撑隔板，每块隔板的管孔中心相对于两端管板的管孔中心依次抬高一定的距离，以使冷却管呈拱形状；对分制的两路冷却水以相反方向流过凝汽器，从而改善管束的热负荷分布；在凝汽器喉部布置了末级低压加热器，抽汽管道及旁路排汽接受装置等。

It is revealed that both the roasting and cooling air flow run radially at inlets and then run slantingly upwards or downwards into roasting-preheating zone inside IVAC. And the gas flow in the whole soaking zone is weakened. There are possibly three gas flow patterns in PSF, which are mainly dependent on the ratio of inflow, i.e., the greater the ratio is, the higher the downward roasting air flowrate and the lower the upward air flowrate will be. The critical ratio of inflow mainly depends on the constructional parameters and packed bed conditions of PSF.

结果表明：焙烧风和冷却风在进口处呈放射状，之后斜向上或斜向下分别流入焙烧-预热带和导风墙内；整个均热带内气流较为薄弱；炉内存在三种气流分流的可能，流入风量比是决定气流分流的最主要因素，其中，流入风量比增加，焙烧风下行趋势增大，而冷却风上行趋势减小；临界流入风量比主要取决于结构参数和料层情况。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。