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1)  condensing heat transfer enhancement
凝结换热强化
2)  Augmentation of condensation heat transfer
强化凝结换热
3)  condensation heat transfer
凝结换热
1.
Experimental investigation on condensation heat transfer in horizontal microfin and smooth tube with refrigerant R22;
R22在水平微肋管和光管内凝结换热的实验研究
2.
Marangoni condensation heat transfer for binary mixture vapor at different vapor pressures;
不同蒸气压力下的Marangoni凝结换热特性
3.
Investigation of condensation heat transfer of horizontal titanium circular-grooved tube;
钛波槽管水平管外凝结换热的实验研究
4)  condensation [英][,kɔnden'seɪʃn]  [美]['kɑndɛn'seʃən]
凝结换热
1.
Flow and condensation of vapor with high partial pressure non-condensable gas in a separate heat pipe;
含高分压不凝气体的蒸汽在分离式热管内凝结换热
2.
Heat transfer coefficient and pressure drop were measured during condensation of steamin a vertical copper tube with and without Twined Wire Coil Inserts (TWCI), respectively.
1前言大空隙率多孔体管内插物-绕花丝内插物,被认为是强化管内凝结换热的最有效途径之一[1]。
3.
An experimental study is reported on forced-convective condensation heat transfer of R134a inside a horizontal smooth tube, using a 13m long, 11mm inside diameter test tube.
但是关于R134a的传热性能的研究还不够充分,尤其是对凝结换热,一些现有的关联式还不能很有把握地推广应用于R134a,还必须进行大量的研究工作,以查明R134a的传热特性。
5)  condensing heat transfer
凝结换热
6)  Enhanced Heat Transfer
强化换热
1.
An Experimental Study on the Enhanced Heat Transfer of the Plane Plates in the Rectangle Longitudinal Vortex Generators;
矩形纵向涡发生器平板强化换热的实验研究
2.
This paper presented influence of factor on film cooling,enhanced heat transfer in tunnel and heat pipe cooling,how to apply and development for these technologies.
详细地阐述了对气膜冷却、内部强化换热以及热管冷却等的影响因素,目前的应用状况以及发展前景。
3.
The experimental results show that the compact in-line tube bundles have a significant enhanced heat transfer than those of the common tube bundles, and there is an optimum tube spacing that provides a most enhanced heat transfe.
在低压条件下对水平光滑顺排管束的小空间内沸腾强化换热特性进行了实验研究,确认了管距、管位置和运行压力对强化换热性能的影响。
补充资料:传热学:凝结换热
凝结换热:
蒸汽在低於其饱和温度的壁面上凝结时的换热过程﹐是具有相变特点的两相流换热。蒸汽凝结时放出汽化潜热而凝成液体。如凝结液能润湿壁面﹐则在壁面上形成一层液膜﹐受重力作用向下流动。液膜表面上蒸汽的凝结﹐通过液膜向壁面传递热量﹐这称为膜状凝结换热。如果凝结液不能润湿壁面﹐则将聚成珠状滚落﹐称为珠状凝结换热。这时蒸汽仍能直接在壁面上凝结﹐热量的传递没有液膜的阻隔﹐换热强度可比膜状凝结高至10倍。但珠状凝结是很难保持的﹐只有金属蒸气的凝结﹑渗入某种有机物(如油酸﹑辛醇等)蒸汽的水蒸汽在金属壁面上的凝结﹑水蒸汽在涂有硅油﹑聚四氟乙烯等壁面上凝结﹐才是珠状凝结。如果水蒸汽中含有不凝结气体﹐则换热会大大减弱﹐所以在凝汽设备中必须将不凝结气体排除。工业设备中常见的水蒸汽或其他蒸汽在金属壁面上的凝结一般都是膜状凝结。蒸汽在竖管外表面上凝结时﹐液膜沿管长不断增厚﹐换热逐渐减弱。对於横管﹐因管径有限﹐液膜不会太厚﹐所以横管的凝结换热係数较竖管为大。蒸汽流动时﹐如方向与液膜的流动方向相同﹐则会使液膜减薄﹐换热增强﹔如方向相反﹐则液膜增厚﹐换热减弱。蒸汽流速较大时会把液膜吹散﹐使换热增强。蒸汽在横管束中凝结时﹐流过各排管子的蒸汽速度是依次减小的﹐同时﹐下面的管子受上面管子滴下的凝结液的影响﹐膜层变得较厚而又有扰动。管束对凝结换热的影响是一个相当复杂的问题﹐尚未研究出普遍适用的规律。
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