Flow boiling visualization in a vertical circular minichannel at high vapor quality

Owhaib W; Palm B; Martin-Callizo C

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Flow boiling visualization in a vertical circular minichannel at high vapor quality

机译：在垂直圆形微型通道中以高蒸气质量进行沸腾流动可视化

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This paper reports on an experimental study of saturated flow boiling of R134a inside a circular vertical quartz tube coated with a transparent heater. The inner diameter of the tube was 1.33 mm and the heated length 235.5 mm. The flow pattern at high vapor qualities and the dryout of the liquid film were studied using a high speed CCD camera at the mass fluxes 47.4 and 124.4 kg/m(2) s in up flow at 6.425 bar. The heat fluxes ranged from 5 to 13.6 kW/m(2) for the lower mass flux and from 20 to 32.4 kW/m(2) for the higher mass flux.

机译：本文报道了一个R134a在装有透明加热器的圆形垂直石英管内的饱和沸腾沸腾的实验研究。管的内径为1.33mm，加热长度为235.5mm。使用高速CCD相机研究了在6.425 bar向上流动的质量通量为47.4和124.4 kg / m（2）s的情况下，在高蒸气质量下的流型和液膜的变干。对于较低的质量通量，热通量为5至13.6 kW / m（2），对于较高的质量通量，热通量为20至32.4 kW / m（2）。

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《Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics》 |2006年第8期|共9页
作者
Owhaib W; Palm B; Martin-Callizo C;
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原文格式 PDF
正文语种 eng
中图分类流体力学;
关键词
minichannel; dryout; visualization; flow boiling; CRITICAL HEAT-FLUX; GENERAL CORRELATION; TRIGGER MECHANISM; PRESSURE-DROP; CHF MECHANISM; ROUND TUBES; WATER-FLOW; PREDICTION; MODEL; WALL;

机译：小通道;变干;可视化;流动沸腾;临界热通量;一般相关;触发机制;压降;CHF机制;圆管;废水;预测;模型;墙;

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1. Flow boiling visualization in a vertical circular minichannel at high vapor quality [J] . Owhaib W, Palm B, Martin-Callizo C Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics . 2006,第8期

机译：在垂直圆形微型通道中以高蒸气质量进行沸腾流动可视化
2. Research on flow boiling heat transfer for vertical upward and downward flows along a minichannel with a smooth heated surface [J] . Kinga Str?k, Magdalena Piasecka E3S Web of Conferences . 2018,第1期

机译：沿加热面光滑的小通道垂直向上和向下流动的沸腾传热研究
3. Research on flow boiling heat transfer for vertical upward and downward flows along a minichannel with a smooth heated surface [J] . Kinga Str?k, Magdalena Piasecka E3S Web of Conferences . 2018,第1期

机译：沿加热面光滑的小通道垂直向上和向下流动的沸腾传热研究
4. Effect of Liquid-Vapor Phase Distribution on the Heat Transfer Mechanisms during Flow Boiling in Minichannels and Microchannels [C] . . 2005

机译：微通道和微通道沸腾过程中液-气相分布对传热机理的影响
5. Photographic study and modeling of critical heat flux in horizontal flow and vertical upflow boiling with inlet vapor void. [D] . Kharangate, Chirag Rajan. 2011

机译：具有入口蒸气空隙的水平流动和垂直向上沸腾的临界热通量的摄影研究和建模。
6. An Experimental Study on Flow and Heat Transfer Characteristics of Ethanol/Polyalphaolefin Nanoemulsion Flowing Through Circular Minichannels [O] . Vu Trinh, Jiajun Xu 2017

机译：乙醇/聚α-烯烃纳米乳液流经圆形微通道的流动和传热特性的实验研究
7. Visualization Study on Boiling Two-Phase Flows in a Vertical Circular Tube. The Case of Small Mass Velocity and Small Heat Flux. [O] . Tomohiro MIZUNO, Takakage ARAI, Hiromu SUGIYAMA, 1996

机译：垂直圆管沸腾两相流的可视化研究。质量速度小的情况和小型热通量。

Flow boiling visualization in a vertical circular minichannel at high vapor quality

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