1)evaporation heat transfer蒸发换热
1.Experimental study on convection and evaporation heat transfer between human body and environment under low atmospheric pressure低气压条件下人体与环境对流和蒸发换热的实验研究
2.A theoretical model for predicting axial liquid dryout point height in the microgrooves was proposed under pure evaporation heat transfer conditions.对背面有热流输入的开放式竖直矩形毛细微槽群蒸发热沉中液体沿槽道方向的润湿与流动特性进行了理论研究,并提出了预测纯蒸发换热情形下竖直矩形毛细微槽群中液体沿槽道方向的干涸点高度的理论模型。
3.By using a wide field stereo-microscope and a CCD video camera system,the axial liquid flow and dryout point(wetting height)in vertical rectangular capillary microgrooves heat sink were observed and measured under pure evaporation heat transfer conditions.利用宽视场体视显微镜和CCD摄像系统对纯蒸发换热情形下竖直放置的矩形毛细微槽群热沉中的液体沿微槽槽道方向的流动情况和干涸点高度(润湿高度)进行了观察测量,并对微槽几何尺寸、工质等因素对润湿高度的影响进行了实验研究。
英文短句/例句
1.Development Research of Crossflow Plate Heat Changer of Indirect Evaporative横流板式间接蒸发换热器的开发研究
2.Experiment Study on Boiling Heat Transfer Characteristics and Pressure Drop of CO2 in a Small Diameter Tube;二氧化碳在细径管内蒸发换热特性和压降的实验研究
3.Experimental study on convection and evaporation heat transfer between human body and environment under low atmospheric pressure低气压条件下人体与环境对流和蒸发换热的实验研究
4.The scale was developed on the surface of the heat exchanger in evaporator.蒸发器的热交换机表面的尺码加大了。
5.Heat Transfer and Pressure Drop Analysis on Evaporation of Refrigerant R410a in Plate Heat ExchangerR410a的板式蒸发器换热与压降分析
6.Evaporative Characteristics of Air-conditioners System with Refrigerant R410A Replacing R22R410A替代R22空调蒸发器的换热性能
7.Replacing Technology for Heat Exchanger Tube Bundle of Ⅰ-effect Evaporator in Aluminum Plant氧化铝厂Ⅰ效蒸发器热交换器管束更换工艺
8.Study on heat transfer of falling film evaporation characteristic on heat pipe in the negative pressure负压下热管管外降膜蒸发的换热特性研究
9.Development of Gas Carrying Evaporation and Study of the Fouling on Its Heated Surface;载气蒸发的发展及其换热面上结垢的研究
10.Experimental Investigations on the Heat Transfer and Flow Characteristic of the Indirect Evaporative Cooler;间接蒸发冷却换热器换热特性与阻力特性的实验研究
11.Flow and Heat Transfer Characteristics of the Helical Tube steam generators螺旋管式蒸汽发生器的流动与换热特性
12.Heat Transfer and Pressure Drop Characteristics of a Tube Bundle Immersed in Bubbly Flow;浸没管束鼓泡蒸发冷却换热及阻力特性
13.Exergy Efficiency Evaluation and Analysis of Indirect Evaporative Cooling in Plate Heat Exchangers;间接蒸发冷却板式换热器(火用)效率评价及分析
14.Study on Heat Transfer Characteristics of Zeotropic Refrigerant Mixtures in Evaporators非共沸混合制冷剂在蒸发器内换热特性的研究
15.Hot vapor from this unit passes to the second-effect calandria and causes boiling in the second evaporator.从这台设备中出来的热蒸汽通进二效的列管换热器,使第二台蒸发器中的液体沸腾。
16.Equipment scope includes compressors, pumps, chillers, heat exchangers, cooling towers, pressure vessels, boilers, vaporizers for Projects.设备包括压缩机,泵,冷冻机,热交换器,冷却塔,压力容器,蒸发器等。
17.Exergy Analysis of Evaporative Cooling and Numerical Research on the Heat Transfer in a New Plate Heat Exchanger;蒸发冷却(火用)分析及板式换热器的设计与模拟研究
18.Impact of Interim Running on Heat Flow Rate and Pressure Drop of Finned-Tube Heat Exchangers间歇运行对翅片管式蒸发器长效换热和压降特性的影响
相关短句/例句
evaporation heat transfer coefficient蒸发换热系数
3)falling-film evaporating heat exchanger降膜蒸发换热器
4)Evaporative heat exchanger蒸发式换热器
5)evaporator capacity蒸发器换热量
1.The results showed that the evaporator capacity for the rectangle shape was the greatest and was 12% more than the smallest one for the triangle shape with lower right angle.利用EVAP-COND软件计算分析了风速均匀以及风速呈下三角、上三角、中三角分布对单流路双排管蒸发器性能的影响,结果表明:风速均匀分布时蒸发器换热量最大,比最小值大12%;第1排管的换热量是产生差别的主要原因,而它又取决于传热系数分布;风速呈下三角分布时第1排管传热系数的峰值、最小值都比其他风速分布时的小,蒸发器换热量最小;风速呈上三角分布时第1排管传热系数的峰值最大,最小值比呈下三角分布时的大,蒸发器换热量仅次于风速均匀分布时的换热量。
6)forced convective evaporation强制对流蒸发换热
延伸阅读
薄膜蒸发换热薄膜蒸发换热film evaporation heat transfer baomo zhengfo huonre薄膜燕发换热(film evaporation heat tran-sfer)饱和液体或接近饱和温度的未饱和液体沿壁温高于饱和温度的竖管壁或竖平壁成薄膜状下流时产生的蒸发换热过程。一般下流的液体自由液面大而厚度很小。 液体沸腾换热具有很高的换热系教,其原因是:汽泡上浮引起液体对换热面强烈的冲刷运动,使液体与壁面间产生换热而急剧过热;过热的液体在汽一液两相分界面上(汽泡表面和自由液面)蒸发,一部分液体吸引其燕发潜热变成蒸汽.并使过热液体冷却变为饱和液体而再次向壁面冲刷。饱和液体对壁面的冲刷作用越强烈.液体的过热度越高,单位体积的液体所占有的汽一液两相分界面面积越大,都将导致换热系数的增高。据此,可用布膜器设计出一种人为的降膜蒸发器,将饱和液体或接近饱和温度的液体形成薄膜沿加热面流下。由于液膜很薄,液体不但具有高的过热度,而且单位体积还占有很大的汽一液两相分界面面积,因此这种降膜蒸发器具有很高的换热系数,在化工及制冷工业中已被广泛采用。 薄膜蒸发换热计算的主要目的是求出液膜厚度b与换热系数a之间的关系。20世纪50年代以来,竖管式降膜燕发器最先得到开发和推广应用。而竖板式降膜燕发器直到70年代才出现,由于它的a高、动力消耗省、不易结垢并易于除垢,近年来也得到广泛应用。无论是管式或板式,其实验研究结果都整理成无量纲膜厚度B一b(棺汁/y和液膜雷诺数R。一4厂/,之间的关系式B~。;尺扩,,以及无量纲换热系数a‘一a(y2/g汁/,与R,及普朗特数尸r一y/。之间的关系式。*一‘ZRe、介·。其中又、产、y和a分别为液体的导热率、勃度、运动猫度和热扩散率;g为重力加速度;厂为单位板宽上的液体流量;。1、nl、。2、nZ、m为实验常数,可从有关手册中查出。