• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Refrigeration >Convection-driven absorption of R-1234yf in lubricating oil
【24h】

Convection-driven absorption of R-1234yf in lubricating oil

机译：对流驱动的R-1234yf在润滑油中的吸收

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

Experiments were carried out to determine rates of absorption of R-1234yf through the free surface of an initially stagnant layer of lubricant POE ISO VG 10 in a closed system. Rayleigh instability at the phase interface gives rise to natural mass convection-driven absorption. Mass transfer rates computed via a cooling-law relationship involving a time-dependent mass transfer coefficient and a refrigerant mass fraction driving force (assuming phase equilibrium at the interface) yielded good agreement with data for the system pressure decay as a function of time. Due to the lack of data on phase equilibrium of the R-1234yf/POE ISO VG 10 mixture, a PVT cell was designed and constructed to measure the solubility of the oil-refrigerant system. Tests carried out with R-134a/POE ISO VG 10 under the same conditions showed that R-1234yf offers lower absorption rates in the oil, which may result in higher values for the equalizing pressure in refrigeration systems.
机译：进行实验以确定在封闭系统中R-1234yf通过最初停滞的润滑剂POE ISO VG 10层的自由表面的吸收速率。相界面处的瑞利不稳定性引起自然对流驱动的吸收。通过涉及时间依赖的传质系数和制冷剂质量分数驱动力（假设界面处的相平衡）的冷却定律关系计算出的传质速率与系统压力随时间变化的数据很好地吻合。由于缺少有关R-1234yf / POE ISO VG 10混合物相平衡的数据，因此设计并构建了PVT电池来测量油制冷剂系统的溶解度。在相同条件下使用R-134a / POE ISO VG 10进行的测试表明，R-1234yf在油中的吸收率较低，这可能会导致制冷系统中的均压值更高。

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