A Research on Air in Oils
A Research on Air in Oils
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油中空气的研究
DOI：
10.1299/jsme1958.27.1920
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发表时间：
1984
期刊：
影响因子：
--
通讯作者：
Hirotaka Fujita
中科院分区：
文献类型：
--
作者：
H. Katakura;S. Tsuji;R. Yamane;Hirotaka Fujita
在本报告中，研究了石油基油的空气溶解度和油中静止气泡直径的变化。空气溶解度可以通过正则溶液的理论来评价。对于五种不同类型的石油基油，测得的空气溶解度与假设溶解度参数为1.4×104√（J/m）（对于石蜡基油，或1.6×104√（J/m）而言，环烷油基油的溶解度参数为1.6×104√（J/m）计算的结果大致相同。五种不同类型的油中的测量值之间没有观察到溶解空气的扩散率存在显着差异。气泡在低压或高压下一旦发生直径变化，需要很长时间才能溶解。在静止油中，例如在旋转油中，会恢复到原始尺寸，并且这些现象是在多次重复这种压力变化后出现的。
In this report, air solubility of petroleum-based oil and change in diameter of a stationary bubble in the oil are investigated. The air solubility may be evaluated by the theory on regular solutions. For the petroleum-based oil of five different types measured air solubility was approximately same as that calculated by assuming that the solubility parameter is 1.4×104√(J/m for paraffin-based oil, or 1.6×104√(J/m for naphthene-based oil. No considerable difference in the diffusivity of dissolved air was observed among measured values in the oil of five different types. A bubble, which had once changed in diameter under low or high pressure, took a long period of time to recover the original size in stationary oil such as in swirling oil. And these phenomena appeared after such pressure change was repeated multiple times.