传热

Using the opened thermosiphon of 38x3 as experimental element and water as working fluid,the characteristics of dynamic low load boiling,stable severe boiling heat transfer coefficient and critical heat flux are gotten for the opened thermosiphon at the pressure of 0.02-0.1MPa and 0.1-0.8MPa respectively,which makes up the drawback that the opened thermisiphon has not yet accurate boiling heat transfer relationship formulas.

本文以工程上常用的Φ38×3的开口封底为实验元件，以水为工质，对开启式热管内的动态低负荷沸腾、稳态旺盛沸腾及临界沸腾特性进行系统的可视化实验研究，实验压力为0.02～0.8MPa，实验得出了Φ38×3的开口封底管在工作压力为0.02～0.8MPa和0.1～0.8MPa下的管内沸腾传热系数及临界热负荷计算关联式，弥补了开口封底管——这一新型传热元件尚无准确的沸腾换热关联式的缺陷。

The one-dimensional mathematical model for the combustion and heat transter in boiler furnaces was built in this thesis.

在对煤粉锅炉炉膛燃烧、传热过程进行理论分析和合理简化的基础上，本文建立了煤粉锅炉炉膛燃烧、传热一维数学模型。

This article discusses the general rules of calculating the unsteady state heat transfer in freezing brine tank .

论述了冷冻盐水箱内不稳定传热计算的一般原则，推导出了沉浸蒸发器和箱外蒸发器的冷冻盐水箱内不稳定传热计算式。

The change of heat transfer coefficient and the vapor lock make the tube bundle arrangement correction factor change with load.

凝汽器蒸汽流场的变化使其传热系数和汽阻发生变化，传热系数和汽阻的改变使凝汽器管束布置修正系数随着负荷变化。

The change of condenser steam flow field causes the changes of its heat transfer coefficient and the vapor lock,with the analysis on the change of the tube bundle arrangement with the alteration of the steam flow field,proposed the change scope of the correction factor of the arrangement of condenser tube bundle with the alteration of the condenser steam flow field.

凝汽器蒸汽流场的变化使其传热系数和汽阻发生变化，传热系数和汽阻的改变使凝汽器管束布置修正系数随着负荷变化，分析了管束布置修正系数随蒸汽流场的变化而变化，提出了管束布置修正系数随蒸汽流场变化的范围。

Based on the desire of decrease of material,the genetic algorithm is applied to optimization design of the heat pipe waste heat boiler in this paper.

利用热管这一特性，将其作为传热元件制成热管式余热锅护，具有设备体积小、传热效率高等显著优点。

This paper points out main weakness of solar energy water-heater made up of glass vacuum pipe from heat-conduction and structure, introduces the principles and advantages of the efficient heat-conducting element-heat pipe, and makes some designs and researches on the solar energy water-heater made up of heat pipe.

从传热和结构两方面指出了全玻璃真空管太阳能热水器的主要缺点，介绍了高效传热元件——热管的原理及其优越性，并对热管式真空管太阳能热水器进行了设计研究。

These indexes describe the fabric's thermal properties during the heated process. The heat insulation ratio preferably manifests fabric's insulation property; the difference of calefactive ratio describes dynamic conditions average calefactive case; effective thermal conductivity and compound thermal resistance are mainly considering the wholly testing characteristics and describing the compound thermal property; the response time expresses the time of step response during dynamic testing process. 3. Dynamic heat transmitting properties of fabrics and warmth retention testing methods have been developed; many different textile materials are used for actual test, and the data are analyzed, illustrated, and compared.

这些指标从不同的侧面描述了试验过程中织物试样的传热隔热性能，其中隔热率是从整体上来考虑的指标，它较好的描述了试样的隔热保温性能；升温速率差考虑的是动态变化过程中平均升温变化情况，它的大小表现了织物热性能的差异；名义导热系数和复合热阻是从试验装置的特点出发整体来考虑的热传递指标，描述了铜板、试样、铜板三者复合时的传热性能与隔热性能；而温度动态响应时间表示动态热传递过程中趋于稳态所经历的时间。

These indexes describe the fabric"s thermal properties during the heated process. The heat insulation ratio preferably manifests fabric"s insulation property; the difference of calefactive ratio describes dynamic conditions average calefactive case; effective thermal conductivity and compound thermal resistance are mainly considering the wholly testing characteristics and describing the compound thermal property; the response time expresses the time of step response duringdynamic testing process.3. Dynamic heat transmitting properties of fabrics and warmth retention testing methods have been developed; many different textile materials are used for actual test, and the data are analyzed, illustrated, and compared.

这些指标从不同的侧面描述了试验过程中织物试样的传热隔热性能，其中隔热率是从整体上来考虑的指标，它较好的描述了试样的隔热保温性能；升温速率差考虑的是动态变化过程中平均升温变化情况，它的大小表现了织物热性能的差异；名义导热系数和复合热阻是从试验装置的特点出发整体来考虑的热传递指标，描述了铜板、试样、铜板三者复合时的传热性能与隔热性能；而温度动态响应时间表示动态热传递过程中趋于稳态所经历的时间。

The technique of CAE about injection molding is based on polymer processing rheology and conductive calorifics. It simulates the actual process of melt filling, packing and cooling by setting up mathematic and physical models about melt flowing and heat transmitting in the mold cavity, and working out the results by the theory of numerical value analysis. It can also list the processing parameters quantificationally such as pressure, time, temperature, speed, etc, and reflect the results visually by computer figures.

注塑模CAE技术是根据塑料加工流变学和传热学的基本理论，建立塑料熔体在模具型腔中的流动、传热的数学物理模型，利用数值分析理论构造其求解方法，模拟出实际成型中熔体的动态填充、保压、冷却过程，定量地给出成型过程的状态参数(压力、时间、温度、速度等)，并利用计算机图形学的技术，可形象而直观地反映出分析的结果。

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。