强化传热技术,heat transfer enhancement technology
1)heat transfer enhancement technology强化传热技术
英文短句/例句
1.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
2.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
3.An Experiment Study on the Mechanism of Electromagnetic Anti-fouling & Descaling Technologies with Filtration to Enhance Heat Transfer;电磁抗垢、减垢强化传热技术机理的实验研究
4.Application of Heat Transfer Intensification Technology for Finned Tube in the Condenser翅片管强化传热技术在冷凝器中的应用
5.Research on Heat Transfer Enhancement and Its Application in the CDQ Device强化传热技术在干熄焦装置中的应用研究
6.APPLICATION OF INTENSIFIED HEAT TRANSFER TECHNOLOGY IN SL-Ⅰ CRACKING FURNACE强化传热技术在SL-Ⅰ型裂解炉上的应用
7.Review of Manufacturing Technology on Surface Texture of Enhanced Heat Transfer Tube强化传热管表面结构制造技术研究现状与进展
8." Boiler Heat Exchange, Conduction & Intensification"锅炉热交换传热强化
9.Study on Thermoacoustic Surface Strengthened Processing Technology of Metallic Materials;金属材料热—声处理表面强化技术研究
10.Using Surface Strengthen Technology to Enhance Hot-Forging Die Service Life提高热锻模寿命的途径-表面强化技术
11.Study on Strengthening Technology of the Bearing Enclose Hot Die Protruding Mould轴承内外圈热冲模凸模强化技术的研究
12.Research on the Application of Heat-pipe Technology in Highly Intensified Diesel Engines;热管技术在高强化柴油机中的应用研究
13.Study and Application on Steel Plate High Intensity and Homogeneous Cooling Technology热轧钢板高强度均匀化冷却技术的研究与应用
14.AN ANALYSIS OF THREE-FIELD SYNERGY ON HEAT TRANSFER AUGMENTATION WITH LOW PENALTY OF PRESSURE DROP高效低阻强化换热技术的三场协同性探讨
15.Consumer Ethnocentrism Tendency in China and the Propagating Implications for the Information of the Technical Standards;强化消费者“国货”偏好的技术标准信息传播策略
16.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
17.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;
18.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
相关短句/例句
heat transfer technology传热技术
1.To seek for economic,energy saving,easy operating technologies of maintaining normal lifting technology of heavy oil,based on the highly efficient heat conduction characteristic of gravity assisted wickless heat pipe,proposedheat transfer technology of wellbore with gravity assisted wickless heat pipe.为寻求经济节能、操作简单、维持稠油在井筒中正常举升的工艺,基于重力热管高效导热原理,提出了井筒热管传热技术。
3)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
4)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
5)heat transfer enhancement传热强化
1.The fouling removement andheat transfer enhancement technique using plastic inserted tubes with spiral flange;塑料螺旋管自动清洗及其传热强化技术
2.Numerical simulation ofheat transfer enhancement by inverting thermal storage cells during melting;翻转单元对融化过程传热强化作用的数值模拟
3.Optimization of operation parameter ofheat transfer enhancement in self-cleaning fludization heat exchangers;自动清洗式流态化换热器传热强化的运行参数优化研究
6)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。
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。
