1、

The Rankine cycle of low boiling medium and its application to low temperature waste-heat recovery in foreign countries are reviewed.

本文介绍低沸点工作介质的兰金循环特点及目前国外运用这种循环方法回收和利用低温余热的情况。

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2、

Life cycle assessment of microwave high temperature tube furnace using analytic hierarchy process and fuzzy comprehensive evaluation was an easy and practical way to provide a mechanism for improving microwave high temperature tube furnace quality with low resource consumption and less environment pollution.

通过采用层次分析法和模糊分析法对微波高温管式反应器进行生命周期评价,能够提供了一种在较低的资源消耗和较少的环境污染下研制微波高温管式反应器的方法。

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3、

A feedback mechanism research on the carbon cycle and temperature of terrestrial surface system

陆地表层碳循环与温度反馈机制研究

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5、

The performance analysis for semiconductor thermoelectric cycle which works at small temperature difference

低温半导体温差发电循环的工作性能分析

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6、

The stagnation enthalpy and stagnation temperature are often employed in a thermodynamic cycle.

在热力循环中,经常使用滞止焓和滞止温度的概念。

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7、

These PCM have a promising application in thermodynamic environment with its temperature varying from 90 to 550 ℃, especially in solar thermal power, organic Rankine cycle, mobile thermal energy storage and distributed energy resources system.

中温PCM主要针对90~550℃的热动力环境,在太阳能热发电、有机朗肯循环、移动蓄热技术、分布式能源系统等方面有广阔的应用前景。

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8、

The spot welding temperature field is calculated based on the ANSYS heat and electrical element; we received the heating characteristic and the thermal cycle curve of resistance spot welding.

基于ANSYS的热电单元计算了电阻点焊温度场,得到电阻点焊加热的特点和点焊热循环曲线。

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9、

Through impos-ing the boundary conditions in the temperature model, the heat source model of FSW was defined and the thermal cycle curve of the whole welding process was obtained.

在温度场模型中施加边界条件,确定搅拌摩擦焊热源模型,得到整个焊接过程中的热循环曲线,最高温度值均在各自的高塑性温度区间。

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10、

The instrument can acquire, process and display welding temperature, and can also give a printout of the welding thermal cycle curve arid characteristic parameters, the real time accurate measurement of welding thermal cycle is realized.

该测试仪可采集、处理和显示焊接温度信号,并可打印输出焊接热循环曲线及特征参数值,实现了焊接热循环的实时准确地测量。

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11、

Finally the influences of the power allocation among the wires on welding thermal cycle curve are discussed, and the results show that the power distribution among the wires of multi-wires LSAW will impact the highest temperature of the molten pool.

最后,探讨了焊丝之间的功率分配对焊接热循环曲线的影响,研究发现:多丝埋弧焊焊丝之间的功率分配会对熔池最高温度产生影响。

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12、

The results show that the thermal fatigue life decreases with enlarging the thermal cycle dwell time, the thermal cycle range and the maximum dwell temperature, and the minimum life is 879 cycle.

结果表明:随着热循环高低温停留时间、温度范围以及最高热循环温度的增大,热循环寿命减小,最小寿命为879周;

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13、

The thermal cycle dwell time, thermal cycle temperature range and the maximum dwell temperature were changed to observe their effects on the thermal fatigue life of solder joint; the length and thickness of substrate were also changed to research the dimension effect.

通过改变热循环保温时间、温度范围和最高温度,研究各参数对焊点热疲劳寿命的影响,同时也考察了基板的长度和厚度的影响。

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