...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fluid Phase Equilibria >Viscosity and thermal conductivity of methane, ethane and propane halogenated refrigerants
【24h】

Viscosity and thermal conductivity of methane, ethane and propane halogenated refrigerants

机译：甲烷，乙烷和丙烷卤化制冷剂的粘度和导热系数

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

In the case of the methane and ethane halogenated refrigerants, the examination of the available viscosity and thermal conductivity measurements, allowed the derivation and recommendation of standard equations for these two properties. Hence, equations for the viscosity of refrigerants R32, R124, R125, R134a, R141b, and R152a in the Liquid phase and refrigerants R125, R134a, R142b and R152a in the vapor phase are recommended. In the case of the thermal conductivity, equations for refrigerants R32, R123, R124, R125, R134a, R141b, R132b and R152a in the liquid phase and refrigerants R123, R125, R134a, and R141b in the vapor phase are also recommended. For each refrigerant, the temperature range of application and the uncertainty of the equation, is given. These equations together with those previously derived for the Dymond and Assael hard-sphere model for high pressure, form a very useful tool for the engineer. Very few viscosity and thermal conductivity measurements for the propane-halogenated refrigerants exist. Hence, although no recommended equations could yet be derived, a first estimate of the parameters of the Dymond and Assael hard-sphere model could be derived. (C) 2000 Elsevier Science B.V. All rights reserved. [References: 49]
机译：在甲烷和乙烷卤代制冷剂的情况下，检查可用的粘度和热导率测量值，就可以推导和推荐这两种特性的标准方程式。因此，建议使用液相制冷剂R32，R124，R125，R134a，R141b和R152a以及气相制冷剂R125，R134a，R142b和R152a的粘度方程。在导热性的情况下，还建议使用液相中的制冷剂R32，R123，R124，R125，R134a，R141b，R132b和R152a以及气相中的制冷剂R123，R125，R134a和R141b的方程式。对于每种制冷剂，给出了应用温度范围和方程的不确定性。这些方程式以及先前为Dymond和Assael高压硬球模型导出的方程式，对工程师来说是一个非常有用的工具。丙烷卤化制冷剂的粘度和导热率测量值很少。因此，尽管尚无可推导的推荐方程式，但可推导Dymond和Assael硬球模型参数的第一估计。 （C）2000 Elsevier Science B.V.保留所有权利。 [参考：49]

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