...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Conversion & Management >Experimental investigation on hysteresis effect of refrigerant flowing through a coiled adiabatic capillary tube
【24h】

Experimental investigation on hysteresis effect of refrigerant flowing through a coiled adiabatic capillary tube

机译：盘管绝热毛细管中制冷剂滞后效应的实验研究

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 paper experimentally investigates the mass flow rate hysteresis of R22 in a coiled adiabatic capillary tube. The measured mass flow rate data in a coiled adiabatic capillary are found to be more dispersive than those in a straight one. The scatter bands of measured data are significantly dependent on how the state points are achieved. For increasing inlet sub-cooling paths, the measured data tend to become consistent even though the starting point states are different. However, for decreasing subcooling paths, the data points are much more dispersive due to their different starting point states. The measured temperature distribution along the tube length confirms that the significant scattering in mass flow rate is caused by variation of the flash point location in the tube. Further, the refrigerant flashes earlier as the coiled diameter of the capillary decreases, thus leading to lower mass flow rates. It is suggested that for a coiled capillary tube, the secondary flow effect caused by the centrifugal force increases the uncertainty of the flash point location.
机译：本文通过实验研究了盘绕绝热毛细管中R22的质量流量滞后。发现在盘绕的绝热毛细管中测得的质量流率数据比在直的绝热毛细管中测得的质量流率数据更分散。测量数据的散射带明显取决于状态点的实现方式。对于增加的入口过冷路径，即使起点状态不同，测量数据也趋于一致。但是，对于减少过冷路径，由于数据点的起始状态不同，它们的分散程度要高得多。沿管长度测量的温度分布证实，质量流量的显着散射是由管中闪点位置的变化引起的。此外，随着毛细管的盘绕直径减小，制冷剂更早地闪蒸，从而导致较低的质量流率。建议对于盘绕的毛细管，由离心力引起的二次流动效应会增加闪点位置的不确定性。

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