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本文利用新改进的表面张力实验系统对R600a/矿物冷冻油混合物的表面张力进行了实验研究,其中R600a的质量分数分别为0.95、0.90和0.85,温度范围为253.15～333.15K。实验结果表明,随着含油量的增加,R600a/矿物冷冻油的表面张力逐渐减小,矿物油的存在对纯质制冷剂的表面张力有比较明显的影响。
In this paper, the surface tension of R600a / mineral oil mixture was studied by using the new improved surface tension experimental system. The R600a mass fraction was 0.95, 0.90 and 0.85 respectively, and the temperature range was 253.15 ~ 333.15K. The experimental results show that with the increase of oil content, the surface tension of R600a / mineral frozen oil gradually decreases, and the presence of mineral oil has obvious influence on the surface tension of pure refrigerant.