Measurement of droplet coalescence in a mixing tank
It is in urgent requirement to directly measure the droplet coalescence frequency for the application of the population balance model. In this study, a method was firstly developed to directly measure the droplet coalescence frequency in turbulent flow field by using a specially designed mixing tank...
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| Veröffentlicht in: | AIChE journal 2024-04, Vol.70 (4), p.n/a |
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| creator | Cai, Yubin Yang, Zhongshu Jin, Yijing Jing, Shan Lan, Wenjie Li, Shaowei |
| description | It is in urgent requirement to directly measure the droplet coalescence frequency for the application of the population balance model. In this study, a method was firstly developed to directly measure the droplet coalescence frequency in turbulent flow field by using a specially designed mixing tank and a high‐speed camera. The effects of the rotating speed and holdup fraction on the droplet coalescence frequency were quantitatively investigated. The increasing of rotation speed promotes first and then inhibits the coalescence, while the holdup fraction has little influence on the coalescence frequency function. The droplet collision frequency was also counted and the coalescence efficiency was calculated. The models in the literature were tested with our experimental data and were found failing to predict the coalescence frequency in the stirring tank. Empirical correlation was finally proposed and good agreement was found between the prediction results and the experimental data. |
| doi_str_mv | 10.1002/aic.18282 |
| format | Article |
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In this study, a method was firstly developed to directly measure the droplet coalescence frequency in turbulent flow field by using a specially designed mixing tank and a high‐speed camera. The effects of the rotating speed and holdup fraction on the droplet coalescence frequency were quantitatively investigated. The increasing of rotation speed promotes first and then inhibits the coalescence, while the holdup fraction has little influence on the coalescence frequency function. The droplet collision frequency was also counted and the coalescence efficiency was calculated. The models in the literature were tested with our experimental data and were found failing to predict the coalescence frequency in the stirring tank. 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In this study, a method was firstly developed to directly measure the droplet coalescence frequency in turbulent flow field by using a specially designed mixing tank and a high‐speed camera. The effects of the rotating speed and holdup fraction on the droplet coalescence frequency were quantitatively investigated. The increasing of rotation speed promotes first and then inhibits the coalescence, while the holdup fraction has little influence on the coalescence frequency function. The droplet collision frequency was also counted and the coalescence efficiency was calculated. The models in the literature were tested with our experimental data and were found failing to predict the coalescence frequency in the stirring tank. Empirical correlation was finally proposed and good agreement was found between the prediction results and the experimental data.</description><subject>Coalescence</subject><subject>coalescence efficiency</subject><subject>droplet coalescence</subject><subject>droplet collision frequency</subject><subject>Droplets</subject><subject>Experimental data</subject><subject>population balance</subject><subject>Population balance models</subject><subject>stirring tank</subject><subject>Turbulent flow</subject><issn>0001-1541</issn><issn>1547-5905</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp1kMtOwzAQRS0EEqWw4A8ssWKRdjyOX8uq4lGpiA2sLde1UUqaFDsR9O8JhC2r0YzO3CsdQq4ZzBgAzl3lZ0yjxhMyYaJUhTAgTskEAFgxHNg5uch5N2yoNE4Ifwou9ynsQ9PRNtJtag916KhvXR2yD40PtGqoo_vqq2reaOea90tyFl2dw9XfnJLX-7uX5WOxfn5YLRfrwqNQWKBDFtVGgo7MGMG5FM4AixBLqTkKKb1BjMgDZx42GwNlcLrc6gDKCaX4lNyMuYfUfvQhd3bX9qkZKi0aqaUALcxA3Y6UT23OKUR7SNXepaNlYH-c2MGJ_XUysPOR_azqcPwftIvVcvz4BjHHX_Q</recordid><startdate>202404</startdate><enddate>202404</enddate><creator>Cai, Yubin</creator><creator>Yang, Zhongshu</creator><creator>Jin, Yijing</creator><creator>Jing, Shan</creator><creator>Lan, Wenjie</creator><creator>Li, Shaowei</creator><general>John Wiley & Sons, Inc</general><general>American Institute of Chemical Engineers</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7U5</scope><scope>8FD</scope><scope>C1K</scope><scope>L7M</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0002-7833-8824</orcidid><orcidid>https://orcid.org/0000-0002-7761-9210</orcidid></search><sort><creationdate>202404</creationdate><title>Measurement of droplet coalescence in a mixing tank</title><author>Cai, Yubin ; Yang, Zhongshu ; Jin, Yijing ; Jing, Shan ; Lan, Wenjie ; Li, Shaowei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2572-2a21f7b608f19953365a901f0f46832566c922f23e31c0bb904ea84d8e07a5773</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Coalescence</topic><topic>coalescence efficiency</topic><topic>droplet coalescence</topic><topic>droplet collision frequency</topic><topic>Droplets</topic><topic>Experimental data</topic><topic>population balance</topic><topic>Population balance models</topic><topic>stirring tank</topic><topic>Turbulent flow</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cai, Yubin</creatorcontrib><creatorcontrib>Yang, Zhongshu</creatorcontrib><creatorcontrib>Jin, Yijing</creatorcontrib><creatorcontrib>Jing, Shan</creatorcontrib><creatorcontrib>Lan, Wenjie</creatorcontrib><creatorcontrib>Li, Shaowei</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>AIChE journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cai, Yubin</au><au>Yang, Zhongshu</au><au>Jin, Yijing</au><au>Jing, Shan</au><au>Lan, Wenjie</au><au>Li, Shaowei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement of droplet coalescence in a mixing tank</atitle><jtitle>AIChE journal</jtitle><date>2024-04</date><risdate>2024</risdate><volume>70</volume><issue>4</issue><epage>n/a</epage><issn>0001-1541</issn><eissn>1547-5905</eissn><abstract>It is in urgent requirement to directly measure the droplet coalescence frequency for the application of the population balance model. 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| subjects | Coalescence coalescence efficiency droplet coalescence droplet collision frequency Droplets Experimental data population balance Population balance models stirring tank Turbulent flow |
| title | Measurement of droplet coalescence in a mixing tank |
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