...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>日本マリンエンジニアリング学会誌 >Experimental Study of Boiling Heat Transfer and Pressure Drop of R32 inside Horizontal Multiport Tube with Circular Minichannels
【24h】

Experimental Study of Boiling Heat Transfer and Pressure Drop of R32 inside Horizontal Multiport Tube with Circular Minichannels

机译：用圆形迷你座脉冲水平多端口管沸腾热传递和R32压降的实验研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study experimentally investigated the boiling flow heat transfer and two-phase frictional pressure drop characteristics of the refrigerant R32 in a horizontal multiport tube with circular minichannels. The boiling heat transfer coefficients and two-phase pressure drops were measured at a saturation temperature of 15°C for mass velocities that ranged from 50 to 400 kgm~(-2)s~(-1) and heat fluxes that ranged from 5 to 40 kWm~(-2). The effects of mass velocity, heat flux, and vapor quality on the boiling heat transfer characteristics were clarified. The measured boiling heat transfer coefficients and two-phase frictional pressure drops were compared with previous correlations. Under the low mass velocity and low heat flux conditions, the boiling heat transfer characteristics differed from the previous correlations for conventional large diameter tubes. The two-phase frictional pressure drops were in good agreement with previous correlation, except for the mass velocity of 50 kgm~(-2)s~(-1).
机译：本研究通过圆形迷你漫步实验研究了水平多端口管中制冷剂R32的沸腾流动热传递和两相摩擦压降特性。在15℃的饱和度温度下测量沸腾的传热系数和两相压降，用于50-400kgm〜（-2）S〜（-1）和从5到4的热量速度40 kWm〜（-2）。澄清了质量速度，热通量和蒸汽质量对沸腾传热特性的影响。将测量的沸腾传热系数和两相摩擦压降与先前的相关性进行了比较。在低质量速度和低热量通量条件下，沸腾的传热特性与以前的传统大直径管相关的相关性不同。除了50kgm〜（-2）S〜（-1）的质量速度外，两相摩擦压降与先前的相关性很好。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号