| R32/PAG润滑油体系的黏度和质扩散系数实验研究 |
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| 引用本文： | 唐旭尧,毕胜山,王阳,崔军卫,吴江涛.R32/PAG润滑油体系的黏度和质扩散系数实验研究[J].工程热物理学报,2021(2):296-299. |
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| 作者姓名： | 唐旭尧 毕胜山 王阳 崔军卫 吴江涛 |
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| 作者单位： | 西安交通大学热流科学与工程教育部重点实验室 |
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| 基金项目： | 国家自然科学基金项目(No.51776171,No.51761135116);陕西省重点研发计划项目(No.2020KW-021)。 |
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| 摘 要： | 本文采用光散射法对R32/PAG润滑油混合体系的动力黏度和质扩散系数进行了实验研究,温度范围从293.15~353.15 K,压力范围从0.09~1.26 MPa,共计获得16个数据点。R32/PAG体系的表面波散射特性属于过阻尼区,当温度一定时,R32/PAG混合物的黏度随着R32所占比例的升高而减小。本文黏度、质扩散系数实验数据与所获得模型的平均绝对偏差分别为1.17%、0.15%,可用于R32/PAG制冷系统的优化设计。
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| 关 键 词： | 光散射 黏度 质扩散系数 模型 |
Experimental Study on Viscosity and Mutual Diffusivity of R32/PAG Lubricant System |
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| TANG Xu-Yao,BI Sheng-Shan,WANG Yang,CUI Jun-Wei,WU Jiang-Tao.Experimental Study on Viscosity and Mutual Diffusivity of R32/PAG Lubricant System[J].Journal of Engineering Thermophysics,2021(2):296-299. |
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| Authors: | TANG Xu-Yao BI Sheng-Shan WANG Yang CUI Jun-Wei WU Jiang-Tao |
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| Institution: | (Key Laboratory of Thermo-Fluid Science and Engineering,Ministry of Education,Xi'an Jiaotong University,Xi'an 710049,China) |
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| Abstract: | In this paper,based on the principle of the dynamic light scattering,the dynamic viscosity and mutual diffusivity of R32 in PAG lubricant are experimentally studied.The pressure range is from 0.09 MPa to 1.26 MPa.and the temperature range is from 293.15 K to 353.15 K,a total of 16 data points were obtained.The surface wave scattering of R32/PAG system belongs to the overdamp region.The results show that when the temperature is constant,the viscosity of R32/PAG mixture decreases as the proportion of R32 increases.The average absolute deviations between the experimental data of viscosity and mutual diffusivity and the obtained model are 1.17%and 0.15%respectively,which can be used for the optimal design of R32/PAG refrigeration system. |
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| Keywords: | dynamic light scattering dynamic viscosity mutual diffusivity model |
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