{"title":"搅拌条件下油中单泡破裂","authors":"Basim O. Hasan","doi":"10.29194/njes.25010006","DOIUrl":null,"url":null,"abstract":"An experimental study on single bubble breakage in the stirred tank in oil as a continuous phase was carried out for a range of stirring speeds (220 to 430 rpm). The results are compared with bubble breakage in water that was conducted by Hasan et al. (2021) to investigate the effect of physical properties of continuous phase on the breakage rate. The breakage events in the impeller were captured and analyzed using a high speed camera. It was found that the breakage rate represented by breakage probability and a number of produced daughter bubbles (fragments) are directly proportional with the stirring speed. The breakage probability and number of produced daughter bubbles in oil was noticeably lower than that in water indicating the role the continuous phase viscosity plays in reducing the breakage rate.","PeriodicalId":7470,"journal":{"name":"Al-Nahrain Journal for Engineering Sciences","volume":"355 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2022-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Single Bubble Breakage in Oil Under Stirring Conditions\",\"authors\":\"Basim O. Hasan\",\"doi\":\"10.29194/njes.25010006\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An experimental study on single bubble breakage in the stirred tank in oil as a continuous phase was carried out for a range of stirring speeds (220 to 430 rpm). The results are compared with bubble breakage in water that was conducted by Hasan et al. (2021) to investigate the effect of physical properties of continuous phase on the breakage rate. The breakage events in the impeller were captured and analyzed using a high speed camera. It was found that the breakage rate represented by breakage probability and a number of produced daughter bubbles (fragments) are directly proportional with the stirring speed. The breakage probability and number of produced daughter bubbles in oil was noticeably lower than that in water indicating the role the continuous phase viscosity plays in reducing the breakage rate.\",\"PeriodicalId\":7470,\"journal\":{\"name\":\"Al-Nahrain Journal for Engineering Sciences\",\"volume\":\"355 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-04-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Al-Nahrain Journal for Engineering Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.29194/njes.25010006\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Al-Nahrain Journal for Engineering Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.29194/njes.25010006","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
摘要
在220 ~ 430转/分的搅拌速度范围内，对油作为连续相的搅拌槽内的单泡破碎进行了实验研究。将实验结果与Hasan et al.(2021)在水中进行的气泡破裂实验进行对比，研究连续相的物理性质对破裂率的影响。利用高速摄像机对叶轮破碎过程进行了捕捉和分析。研究发现，以破碎概率为代表的破碎率和产生的子泡(破片)数与搅拌速度成正比。油中的破碎概率和产生的子气泡数量明显低于水，说明连续相粘度对降低破碎率的作用。
Single Bubble Breakage in Oil Under Stirring Conditions
An experimental study on single bubble breakage in the stirred tank in oil as a continuous phase was carried out for a range of stirring speeds (220 to 430 rpm). The results are compared with bubble breakage in water that was conducted by Hasan et al. (2021) to investigate the effect of physical properties of continuous phase on the breakage rate. The breakage events in the impeller were captured and analyzed using a high speed camera. It was found that the breakage rate represented by breakage probability and a number of produced daughter bubbles (fragments) are directly proportional with the stirring speed. The breakage probability and number of produced daughter bubbles in oil was noticeably lower than that in water indicating the role the continuous phase viscosity plays in reducing the breakage rate.
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