{"title":"Effect of inside Surface Baffle Conditions on Just Drawdown Impeller Rotational Speed","authors":"Haruki Furukawa, Tomoki Ota, Yoshihito Kato","doi":"10.1155/2024/9254851","DOIUrl":null,"url":null,"abstract":"The effect of inside surface baffle installation conditions on the minimum impeller rotational speed for just the drawdown of floating solid <svg height=\"13.3428pt\" style=\"vertical-align:-4.706901pt\" version=\"1.1\" viewbox=\"-0.0498162 -8.6359 20.4162 13.3428\" width=\"20.4162pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"></path></g><g transform=\"matrix(.0091,0,0,-0.0091,10.062,3.132)\"></path></g><g transform=\"matrix(.0091,0,0,-0.0091,13.056,3.132)\"></path></g></svg> was investigated. The inside surface baffle condition is the condition in which a partial baffle is placed with a clearance between the baffle and the vessel wall. In this study, a baffle with an insertion length of 0.2 times the liquid height was used. Moreover, the effect of baffle angle on <svg height=\"13.3428pt\" style=\"vertical-align:-4.706901pt\" version=\"1.1\" viewbox=\"-0.0498162 -8.6359 20.4162 13.3428\" width=\"20.4162pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"><use xlink:href=\"#g113-79\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,10.062,3.132)\"><use xlink:href=\"#g190-75\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,13.056,3.132)\"><use xlink:href=\"#g190-69\"></use></g></svg> was investigated. The <svg height=\"13.3428pt\" style=\"vertical-align:-4.706901pt\" version=\"1.1\" viewbox=\"-0.0498162 -8.6359 20.4162 13.3428\" width=\"20.4162pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"><use xlink:href=\"#g113-79\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,10.062,3.132)\"><use xlink:href=\"#g190-75\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,13.056,3.132)\"><use xlink:href=\"#g190-69\"></use></g></svg> was measured visually at least three times. The results showed that the effect of the radial installation position of the inside surface baffle on <svg height=\"13.3428pt\" style=\"vertical-align:-4.706901pt\" version=\"1.1\" viewbox=\"-0.0498162 -8.6359 20.4162 13.3428\" width=\"20.4162pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"><use xlink:href=\"#g113-79\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,10.062,3.132)\"><use xlink:href=\"#g190-75\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,13.056,3.132)\"><use xlink:href=\"#g190-69\"></use></g></svg> depended on the impeller position. In addition, even baffles placed parallel to the tangential flow were found to decrease <span><svg height=\"13.3428pt\" style=\"vertical-align:-4.706901pt\" version=\"1.1\" viewbox=\"-0.0498162 -8.6359 20.4162 13.3428\" width=\"20.4162pt\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\"><g transform=\"matrix(.013,0,0,-0.013,0,0)\"><use xlink:href=\"#g113-79\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,10.062,3.132)\"><use xlink:href=\"#g190-75\"></use></g><g transform=\"matrix(.0091,0,0,-0.0091,13.056,3.132)\"><use xlink:href=\"#g190-69\"></use></g></svg>.</span>","PeriodicalId":13921,"journal":{"name":"International Journal of Chemical Engineering","volume":"19 1","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1155/2024/9254851","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
The effect of inside surface baffle installation conditions on the minimum impeller rotational speed for just the drawdown of floating solid was investigated. The inside surface baffle condition is the condition in which a partial baffle is placed with a clearance between the baffle and the vessel wall. In this study, a baffle with an insertion length of 0.2 times the liquid height was used. Moreover, the effect of baffle angle on was investigated. The was measured visually at least three times. The results showed that the effect of the radial installation position of the inside surface baffle on depended on the impeller position. In addition, even baffles placed parallel to the tangential flow were found to decrease .
期刊介绍：
International Journal of Chemical Engineering publishes papers on technologies for the production, processing, transportation, and use of chemicals on a large scale. Studies typically relate to processes within chemical and energy industries, especially for production of food, pharmaceuticals, fuels, and chemical feedstocks. Topics of investigation cover plant design and operation, process design and analysis, control and reaction engineering, as well as hazard mitigation and safety measures.
As well as original research, International Journal of Chemical Engineering also publishes focused review articles that examine the state of the art, identify emerging trends, and suggest future directions for developing fields.
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