1) 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。
2) entropy generation units
熵产数
1.
The irreversibility of heat transfer and fluid flow in regen erative he at exchanger was analyzed,and the number of entropy generation units was introdu ced.
分析了蓄热式热交换器传热和流动过程的不可逆性 ,提出了熵产数的概念。
3) entropy production ratio
比熵产数
1.
In consideration of the complexity of the changeable conditions of the heat exchanger after heat transfer intensification, an on spot evaluation method for determining the entropy production ratio is presented.
针对换热器强化传热后工况变化的复杂性提出了比熵产数工况评价的方法 ,并推导得到易于计算的比熵产数表达式。
4) unit entropy generation number
单位熵产数
1.
A quantitative correlation was deduced to calculate the unit entropy generation number,N_s from the traditional Reynolds number and other parameters under the condition of Re>1450(c_pμ/λ) -1.
引入单位熵产数并得到Reynolds数大于1450(cpμ/λ)-1。
5) entropy production unit number
熵产单元数
6) nondimensional entropy generation number
无因次熵产数
1.
Based on analyzing and discussing the limitation of common criteria——exergy efficiency and nondimensional entropy generation number applied in the field for evaluating thermodynamic performance of heat exchanger,a new criterion which is called nondimensional entropy generation rate(exergy loss rate) is introduced.
在分析和讨论常见的换热器热力学性能评价指标———火用效率ηｅ和无因次熵产数Ｎｓ在实际应用时存在不足的基础上，引入了一个新的换热器热力学性能评价指标———无因次熵产率（火用损率）Ｎｅ，分析和讨论的结果表明，该指标不仅物理意义明确，而且适用范围更广，在换热器的热力学性能评价时优于火用效率ηｅ和无因次熵产数Ｎｓ。
补充资料：数不胜数
1.数也数不清。形容很多。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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