强化传热,heat transfer enhancement
1)heat transfer enhancement强化传热
1.Recent progress of technology and application ofheat transfer enhancement of nanofuilds;纳米流体强化传热技术及其应用新进展
2.Review ofheat transfer enhancement of the PCMs;相变材料强化传热研究进展
英文短句/例句
1.Progress in Study of Intensification of Heat Transfer in Shell Side of Shell and Tube Heat Exchanger管壳式换热器壳程强化传热研究进展
2.Superheat decreases as the channel narrows at low heat flux, but it inverts at high heat flux.在较低热流密度下,窄通道强化传热;
3.Research on Intensifying Heat Transfer in Square Tubular Furnace;方箱管式加热炉炉内的强化传热研究
4.Experiment Research on Ties Enhanced Heat Transfer of Shell-and-tube Exchanger管壳式换热器纽带强化传热实验研究
5.Development of heat transfer enhancement on waste heat recovery device of sintering烧结余热回收装置强化传热研究进展
6.Numerical Simulation of Enhanced Heat Transfer and Structure Optimum for High Temperature Heat Pipe Heat Exchanger;高温热管换热器强化传热及结构优化模拟研究
7.Study on Enhancement of Heat and Mass Transfer of the Film-increacing Type Evaporative Air Cooler增膜型蒸发空冷器强化传热传质研究
8.Study on Heat Transfer Enhancement in Tube with Swirl Flow Generators;内置旋流发生器传热管强化传热的研究
9.Numerical simulation of turbulent heat transfer enhancement in the heat transfer tube with swirling blades旋流叶片传热管内湍流强化传热数值模拟
10.Numerical Simulation for Enhancing Convective Heat Transfer in the Core-flow;管内核心流区域对流强化传热强化数值模拟
11.Research on Heat Transfer Enhancement Mechanism and Heat Transfer Characteristic of Compound Corrugation Plate Heat Exchanger;复合波纹板式换热器强化传热机理及传热特性研究
12.Numerical Simulation of Turbulent Flow and Heat Transfer in Heat Exchange Tube Inserted with Rotors-Assembled Strand内置转子组合式强化传热装置换热管内流体流动与传热数值模拟
13.Experimental Study of Heat Transfer Enhancement by Using New-style Vortex Generators;新型涡流发生器强化传热的实验研究
14.Application of CAE on enhancement of heat transfer resulting in energy saving and emission reductionCAE在强化传热节能减排中的应用
15.Effects of Enhancing Heat Transfer of Using Film Sheet in Tubular Evaporative Air Cooler管式蒸发空冷使用增膜板的强化传热
16.APPLICATION OF ENHANCED HEAT TRANSFER TECHNOLOGY IN CRACKING HEATERS强化传热技术在乙烯裂解炉中的应用
17.Primary experimental study on dean vrotices heat transfer enhancement technoology迪恩涡强化传热技术的初步实验研究
18." Boiler Heat Exchange, Conduction & Intensification"锅炉热交换传热强化
相关短句/例句
enhanced heat transfer强化传热
1.Analysis on tube-shell heat exchangerenhanced heat transfer;换热器管内强化传热的模拟分析
2.Experimental research ofenhanced heat transfer for spiral groove gravity heat pipe;螺旋槽重力热管强化传热实验研究
3.Experimental research onenhanced heat transfer in tubular box furnace in hot state;方箱形管式加热炉炉内强化传热的热态试验
3)intensified heat transfer强化传热
1.Through an analysis of the relation between critical fouling heat-resistance and circulation concentration ratio,theintensified heat transfer is studied in conjunction with the issue of circulating water savings.从提高凝汽器换热系数出发,在保证真空不变的前提下,引出临界污垢热阻的概念,通过分析临界污垢热阻和循环浓缩倍率的关系,将强化传热和循环水节水问题结合起来研究,并通过实例计算出相应的节水量。
2.The experimental results indicate that the heat exchange characteristics of ridged internal-finned tubes are better than those of straight internal-finned tubes in terms ofintensified heat transfer performance,.通过试验和数值模拟方法对一种带突起内翅片管内的对流换热特性进行了研究,并与直内翅片管的流动与传热特性进行了对比,实验表明带突起内翅片管的换热特性优于直内翅片管,起到了强化传热的作用,但同时其流动阻力相应增加。
3.The contrast test before and afterintensified heat transfer is conducted with orthogonal regression method, the regression formulas of its heat transfer coefficient, efficiency and air side resistance are obtained, and the significance test is conducted.按正交回归法进行强化传热前后对比试验,得出其传热系数、热交换器效率、空气侧阻力的回归公式,并进行显著性检验。
4)enhancement of heat transfer强化传热
1.Research on theenhancement of heat transfer by helical ribbon in the shell side;壳程螺旋扭片强化传热研究
2.A new type of plate shell heat exchangers is introduced, which consists of a shell and rectangular corrugated plates with two holes The new type of heat exchangers has the merits ofenhancement of heat transfer, low manufacture cost, broad application fields, low weight and compact size etc .介绍了一种新型板壳式换热器 ,它由壳体和板片上只有 2个导通孔的矩形波纹板片传热面焊接组成 ,具有强化传热、制造成本低、应用范围广和设备紧凑等优
3.Convection heat transfercoefficient distribution over the fin surface is one of the theorehcal problems in research onenhancement of heat transfer.矩形翅片广泛应用于各类换热器，翅片表面的换热系数分布是强化传热研究中的问题之一。
5)enhancing heat transfer强化传热
1.According to the principle ofenhancing heat transfer, the structural characteristics, enhancing effect,suitable working conditions and application were analyzed under phase change and no phase change.从强化传热的机理出发 ,对螺旋槽纹管的结构特点、强化效果及有相变和无相变情况下的应用进行了详细分析 ,着重指出了螺旋槽纹管今后的研究方向。
2.According to the enhancing mechanism of theenhancing heat transfer,the structural characteristics,enhancing effect,suitable working conditions and applications of every kind of enhancing heat exchanger are exhaustive analysed.从强化传热的强化机理出发，对各种强化型换热器的结构特点、强化效果、适用工况及应用进行了详细的分析，为正确选择强化型换热器提供了理论依据，并指出了当今强化传热研究的方向。
3.These results supply a method for development and application ofenhancing heat transfer of vibrated waved pl.这为固流体波面板换热器强化传热的研究与开发提供了一条途径。
6)augmentation of heat transfer强化传热
1.Studies about theaugmentation of heat transfer in tubes by means of experiment in these two methods, provide enough experimental data for the use of swirl generator.本文针对工程中常用的套管换热器 ,采用切向引入装置、管内安装扭曲带方法使流体产生旋转流动 ,研究了两种旋流方式对强化传热性能的影响 ,为旋流强化传热装置的应用提供了必要的实验依据。
延伸阅读
传热强化提高传热系数的传热技术。在传热理论的应用研究中最常遇到传热强化问题。强化的目的是提高设备的利用率、节约能源或满足特殊的工艺要求。根据传热系数的定义式，传热过程的总热阻(1/KA)等于固壁两侧的对流换热热阻(1/h1A，1/h 2A)和固壁本身的导热热阻(δ/kA)等 3个分热阻之和。其中K 为总传热系数，h1、h 2分别为两侧流体对固壁的对流传热系数，δ和k为固壁的厚度和热导率，A 为固壁传热面积。如果传热是在高温下进行，总热阻中还应包括分热阻──辐射热阻。因此，一般地说，降低任何一个分热阻都能提高传热系数。但是实际上，只有当固壁的导热热阻相对于其他几个分热阻较大或相接近时,选用热导率k比较大的金属作固壁材料才是有意义的。当对流换热热阻较大时，导热热阻在总热阻中所占比重很小，这时为了强化传热，主要是靠设法减小固壁两侧的对流换热热阻。就两侧的对流换热热阻来说，如果两值相近，强化两侧或任一侧都有效果；如果两者差别较大，则应着重强化原来换热热阻大的一侧。通过减小分热阻以强化传热的办法很多，经常应用的有：①选用热导率大的材料，或减薄固壁厚度，以降低导热热阻；②提高气体和固壁表面的黑度，以降低辐射热阻。强化对流换热常常是强化传热过程的主要途径，可以采用的手段也更加多样，常用的有：①选用热导率比较大的流体。例如，氢冷比空气冷有效，水冷效果更佳；②加大流动速度，以提高湍流度，减薄边界层，降低对流热阻；采用短管换热器也可以抑制边界层增厚；③采用螺旋管、螺旋板、入口旋流片、各种波形管、异形管和管内插入件，以及粗糙表面等以增强流体扰动；④在对流换热较弱的一侧采用肋片、翅片，以增大换热面积和扰动度；⑤尽量采用相变换热，并且在沸腾汽化时应用多孔金属壁以增加汽化核心；在蒸汽凝结时，换热面上加涂料或流体中掺入添加剂，造成珠状凝结条件；⑥改进冷热气流的流向安排，以提高换热温压；应用电磁和超声等效应也可以达到强化传热的目的。
