Solubilities and Diffusivities of HFC and HFO Refrigerants in a Synthetic Polyol Ester Lubricant Oil

被引：0
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作者：
Morais, Ana Rita C.
Simoni, Luke D.
Scurto, Aaron M.
Shiflett, Mark B.
机构：
来源：
ASHRAE TRANSACTIONS 2019, VOL 125, PT 2 | 2019年 / 125卷
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中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Absorption measurements of hydrofluorocarbons (R-134a, R-125 and R-32) and hydrofluoroolefins (R-1234yf and R-1234ze (E)) in a polyol ester oil (ISO VG 32) were performed using a gravimetric microbalance at temperatures ranging from 248.15 to 348.15 K. R-1234ze (E) is the most soluble refrigerant, while R-32 is the least soluble at given T and p. A one-dimensional diffusion equation was applied on time-dependent absorption data to determine binary diffusion coefficients (D). The observed D varies from 10(-10) and 10(-11) m(2)/s. Diffusing radius calculations support the hypothesis that all refrigerants dissolve into ISO VG 32 as individual refrigerant molecules.
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页码：70 / 72
页数：3
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