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经济结构尺寸
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  economical structure size
     The relationship of economical structure size with th e convective heat transfer parameters for fluid flow across the tubes was derived under the condition of the maximum convective heat flow for a given heat exchang e area, and the optimal flow parameter (Re) relative to structure size, heat flux and physical properties was determined by analyzing the exergy (available exergy) loss rate of the convective process.
     对于流过管束的流动换热过程以给定换热结构使换热量最大为条件导出经济结构尺寸与换热参数间的关系式 ,并借助于换热准则关系得出其与流动参数间的关系式 ; 进而以过程中相对火用损失率最小为条件导出该流动换热过程最佳流动参数的表达式 .
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  相似匹配句对
     bettering economic structure;
     优化经济结构 ;
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     adjust the economic structure;
     经济结构调整;
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     Compared the actuality of the structure of th
     *; 结构;
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     The Similarity of Structure and Dimensions of the Wheel Loaders
     装载机的结构尺寸相似性
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     Using AFS algebra and AFS structure, any human ordinary fuzzy concept can be represented.
     结构
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A calculation method of economic structure size for chemical pressure vessel is proposed. The economic vessel diameter is determined by main material cost of the minimum vessel, and the economic vessel height is determined by the vessel volume and diameter. The calculating method approaches engineering practice, and it means guidance of optimum design for chemical pressure vessel.

提出了一种化工容器经济结构尺寸的计算方法 :由最低容器本体主材费来确定容器筒体的经济直径 ,然后由容积和经济直径确定筒体的经济高度。这种方法接近工程实际 ,对工程优化设计具有指导意义。

The relationship of economical structure size with th e convective heat transfer parameters for fluid flow across the tubes was derived under the condition of the maximum convective heat flow for a given heat exchang e area, and the optimal flow parameter (Re) relative to structure size, heat flux and physical properties was determined by analyzing the exergy (available exergy) loss rate of the convective process. The synthetic performance optimizat ion relationship for the tube structure, fluid flow and heat...

The relationship of economical structure size with th e convective heat transfer parameters for fluid flow across the tubes was derived under the condition of the maximum convective heat flow for a given heat exchang e area, and the optimal flow parameter (Re) relative to structure size, heat flux and physical properties was determined by analyzing the exergy (available exergy) loss rate of the convective process. The synthetic performance optimizat ion relationship for the tube structure, fluid flow and heat transfer can be obt ained by connecting the above-mentioned two relationships. It was used as a cri terion for the performance evaluation. The comprehensive optimization for the fl ow and heat transfer process can be completed in the design stage of thermal dev ice to avoid hysteretic evaluation for the structure of practical heat devices a nd its performances.

对于流过管束的流动换热过程以给定换热结构使换热量最大为条件导出经济结构尺寸与换热参数间的关系式 ,并借助于换热准则关系得出其与流动参数间的关系式 ;进而以过程中相对火用损失率最小为条件导出该流动换热过程最佳流动参数的表达式 .联立上述两个关系式就可得出使过程的结构尺寸、流动特征与换热性能间综合优化的最佳管排与给定热流和管径间的关系式 ,以此作为性能分析与评估的判据 .这里以流过叉排管束为例进行综合性能的分析与评价

 
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