Flow boiling heat transfer of Freon Rll and HCFCl23 in narrow passages

Z.Y. Bao; D.F. Fletcher; B.S. Haynes

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Flow boiling heat transfer of Freon Rll and HCFCl23 in narrow passages

机译：氟利昂Rll和HCFCl23在狭窄通道中的流沸腾传热

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Flow boiling heat transfer coefficients for Freon Rll and HCFCl23 in a smooth copper tube with an inner diameter of 1.95 mm have been experimentally investigated. The parameter ranges examined are: heat fluxes from 5 to 200 kW m~-2; mass fluxes from 50 to l800 kg m~-2 s~-1; vapour quality from 0 to 0.9; system pressures from 200 to 500 kPa; and experimental heat transfer coefficients from l to l8 kW m~-2 K~-1. It was found that the heat transfer coefficients are a strong function of the heat flux and the system pressure, while the effects of mass flux and vapour quality are very small in the range examined. This suggests that the heat transfer is mainly via nucleate boiling. The present experimental data were compared with some existing correlations and recommendations on their use is made.

机译：实验研究了内径1.95 mm的光滑铜管中Freon Rll和HCFCl23的沸腾传热系数。检查的参数范围是：5至200 kW m〜-2的热通量；质量通量为50至l800 kg m〜-2 s〜-1;蒸气质量从0到0.9;系统压力为200至500 kPa;传热系数从l到l8 kW m〜-2 K〜-1。发现传热系数是热通量和系统压力的强函数，而质量通量和蒸气质量的影响在所研究的范围内很小。这表明传热主要是通过核沸腾进行的。将当前的实验数据与一些现有的相关性进行了比较，并提出了使用建议。

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来源
《International Journal of Heat and Mass Transfer》 |2000年第18期|p.3347-3358|共12页
作者
Z.Y. Bao; D.F. Fletcher; B.S. Haynes;
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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类热力工程理论;热学;
关键词
Freon R11; HCFCl23; Narrow passage; Flow boiling; Nucleate boiling;

机译：氟利昂R11;HCFCl 23;狭窄的通道;流沸腾;核沸腾;

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1. Subcooled flow boiling heat transfer in narrow passages [J] . B.S. Haynes, D.F. Fletcher International Journal of Heat and Mass Transfer . 2003,第19期

机译：窄通道中的过冷流动沸腾传热
2. Examination of the mass-heat transfer analogy for two-phase flows in narrow channels - Comparison of gas bubble enhancement of membrane separation and heat transfer to vapour bubbles in boiling [J] . Smith S., Taha T., Wen DS., Chemical Engineering Research & Design: Transactions of the Institution of Chemical Engineers . 2002,第A7期

机译：窄通道中两相流的传质模拟研究-比较沸腾膜分离的气泡增强和沸腾过程中与蒸汽的热传递的比较
3. Comparative analysis of boiling and condensation heat transfer in upflow for freon R-21 in minichannels [J] . Kuznetsov V. V., Shamirzaev A. S. Journal of engineering thermophysics . 2015,第4期

机译：小通道氟利昂R-21上流沸腾和冷凝传热的对比分析
4. HEAT TRANSFER AND CRITICAL HEAT FLUX OF FORCED FLOW BOILING IN VERTICAL-NARROW-ANNULAR PASSAGES [C] . Yasuo KOIZUMI, Hiroyasu OHTAKE, Yosinobu FUJITA The 2001 ASME International Mechanical Engineering Congress and Exposition, 2001, Nov 11-16, 2001, New York, New York . 2001

机译：竖向-环形-环形通道中强迫流动沸腾的传热和临界热通量
5. BOILING HEAT TRANSFER TO A FREON-113 JET IMPINGING UPWARD ONTO A FLAT, HEATED SURFACE [D] . RUCH, MICHAEL ALAN. 1973

机译：沸腾传热到FREON-113射流，向上撞击到平坦的加热表面上
6. Effects of two-phase inlet quality mass velocity flow orientation and heating perimeter on flow boiling in a rectangular channel: Part 1 – Two-phase flow and heat transfer results [O] . Chirag R. Kharangate, Lucas E. O’Neill, Issam Mudawar -1

机译：两相入口质量质量速度流向和加热周长对矩形通道中流沸腾的影响：第1部分–两相流和传热结果
7. Subcooled boiling heat transfer of a stagnant freon R-113 surrounded by a cooling jacket. 1st. report. Heat transfer characteristics of single phase natural convection and nucleate boiling. [O] . Fumito KAMINAGA 1989

机译：由冷却夹套包围的停滞氟朗R-113的脱摩擦热传递。 1。报告。单相自然对流的传热特性和核心沸腾。
8. A CORRELATION OF FILM-BOILING HEAT-TRANSFER COEFFICIENTS OBTAINED WITH HYDROGEN, NITROGEN, AND FREON 113 IN FORCED FLOW [R] . Uwe H. von Glahn 1964

机译：强迫流动中氢气，氮气和火焰113的薄膜沸腾传热系数的相关性

Flow boiling heat transfer of Freon Rll and HCFCl23 in narrow passages

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