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Measurement of Solubility, Viscosity and Density of R32/125 (R-410 Series) Refrigerant/Lubricant Mixtures R32/125(R-410系列)制冷剂/润滑剂混合物的溶解度、粘度和密度测量
在-25°C(-13°F)和125°C(257°F)之间以及高达700 psia的范围内,测量了四种粘度等级为32和68 ISO VG的聚烯烃润滑剂(制冷剂R-410A)的制冷剂蒸汽/液体润滑剂平衡粘度降低。分析了每种粘度的高混溶性和低混溶性等级。通过在粘度计顶部空间中保持恒定的气体蒸汽成分,获得了在含有润滑剂的溶液中溶解的气体混合物的粘度、密度和成分。这种制冷剂的温度滑动很小,但仍被视为混合物。所提供的分馏数据来自单独的等温测量。每个温度的等温线详细说明了R的平衡气体分馏的组成- 润滑剂中的32和R-125、混合蒸汽压、润滑剂中总混合混合物的浓度(重量百分比)以及以厘泊(cP)和厘斯托克斯(cSt)为单位的粘度。原始数据以平滑图形和基于固定蒸汽成分的表格形式呈现。
Measurements of the refrigerant vapor/liquid lubricant equilibrium viscosity reduction of four polyolester lubricants, viscosity grades 32 and 68 ISO VG, with the refrigerant R-410A were taken between -25°C (-13 °F) and 125°C (257°F) and up to 700 psia. A high and low miscibility grade was analyzed for each viscosity. The viscosity, density and composition of the solubilized gas mixture in solution with the lubricant was obtained with constant gas vapor composition in the viscometer head space. This refrigerant has a very small temperature glide, but is considered a blend nonetheless.The fractionation data presented was obtained from individual isothermal measurements. The isotherm for each temperature details the composition of the equilibrium gas fractionation of R-32 and R-125 in the lubricant, mixed vapor pressure, concentration of the total mixed blend (percent by weight) in the lubricant and viscosity in centipoise (cP) and centistokes (cSt). The raw data is presented as smoothed graphs and in tables based on a fixed vapor composition.
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