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1)  entropy generation
熵产
1.
Entropy Generation Analysis for Offset Strip Fin Compact Heat Exchangers;
锯齿翅片紧凑式换热器的熵产分析
2.
Investigation on the co-influences of running parameters and fouling condition on entropy generation of utility boiler heating surfaces
电站锅炉吹灰优化中运行参数与污染对熵产的协同作用规律
2)  entropy production
熵产
1.
An experimental study on heat transfer entropy production of heat exchangers in operation of power station boilers;
电站锅炉运行中换热器传热熵产的试验研究
2.
Dissipation of heat transport potential capacity and entropy production in heat conduction optimization;
势容损耗及熵产与导热优化
3.
Study on variety disciplinarian of entropy production number of convective heating surfaces and sootblowing effect verdict principle in the processing of sootblowing for power plant unit
火电机组吹灰过程中对流受热面熵产数变化规律和吹灰效果判定原则的研究
3)  entropy production
熵产,熵增
4)  entropy generation number
熵产数
1.
Because of entropy generation number(EGN) and EGE as a function of enter temperature rate(θ),number of heat transfer units(NTU),and heat density rate of the fluid(C) for the three .
重点考察了不同进口温度比、传热单元数(NTU)及流体的热流密度比对逆流、并流和错流型基本结构换热器的熵产数和熵产效率的影响,研究结果对换热器的结构优化、操作优化和节能应用的研究具有重要的现实指导意义。
2.
The formulae of non-dimensional radiation entropy generation and entropy generation number for .
用数值模拟方法对一维半透明介质内辐射与导热复合换热过程进行了热力学分析,给出了参与性介质中辐射与导热复合换热过程的无因次熵产公式和熵产数公式,分析了辐射—导热参数、光学厚度、散射反照率、壁面黑度对熵产数的影响。
5)  entropy generation effectiveness
熵产效率
1.
A new concept called entropy generation effectiveness(EGE) which is same as heat transfer effectiveness is advanced,and the irreversibility of heat exchanger is evaluated by using EGE.
以热力学第二定律为基础讨论了理想的逆流、并流和错流型换热器的不可逆损失,并且提出采用熵产效率评价换热器的不可逆程度。
6)  entropy generation
熵产生
1.
An entropy generation based thermodynamic analysis was conducted of the internal flows in circular and flat tubes.
对圆管和扁管内部流动进行了以熵产生为基础的热力学分析。
2.
It was point out that the entropy generation was minimized when the total heat transfer area was divided equally at each stage.
基于熵产生最小对多背压凝汽器进行了优化分析,指出各级传热面积相等时熵产生最小。
3.
The entropy generation number N st of heat exchangers of several flowing pattern was compared with that of contraflow heat exchanger.
将几种流动型式换热器相对于逆流式换热器进行了熵产生数相对值的比较,得到了熵产生数相对值随传热单元数、入口温度之比和热容量之比的变化规律。
补充资料:熵产生
分子式:
CAS号:

性质:非平衡态热力学中的重要物理量。任意系统中局部微小体积内的熵改变由两部分组成:dS=deS+diS,deS称为熵流(entropy flux),它是由于系统与周围环境间的物质流和能量流而引起的熵变。视流的方向,其值可正可负。对于隔离系统,deS=0;对于封闭系统,,δQ为自环境吸收的微量热。diS称为熵产生,是由于系统内部的不可逆因素引起的熵变,其值永不减小,即diS≥0,等号适用于平衡态。因此,可以写为。这就是克劳修斯不等式。对隔离系统,dS≥0,这就是熵增加原理。当-deS=diS时,dS=0,此时非平衡系统可处于一种特殊的定态。

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