Non‐invasive mixing time estimation in unbaffled stirred tank: An ultrasonic approach
Estimation of mixing time is an essential aspect in characterization of stirred tanks. In this work, we report a novel, non‐invasive technique to estimate mixing time in an unbaffled stirred tank using a contact type ultrasonic sensor. Variation in speed of sound in stirred tank is measured by ultra...
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| Veröffentlicht in: | AIChE journal 2023-03, Vol.69 (3), p.n/a |
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| container_title | AIChE journal |
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| creator | Mukherjee, Debmalya Sen, Nirvik Singh, Krishna Kumar Saha, Shilpi Mayya, Anuradha Shenoy, Kalsanka Trivikram |
| description | Estimation of mixing time is an essential aspect in characterization of stirred tanks. In this work, we report a novel, non‐invasive technique to estimate mixing time in an unbaffled stirred tank using a contact type ultrasonic sensor. Variation in speed of sound in stirred tank is measured by ultrasound and is used to determine the mixing time of solutions. A sensing time of 16.6 ms (~60 Hz) is achieved which leads to an estimation of the mixing process dynamics under forced vortex conditions. The method is validated against colorimetric technique using a dye. The technique is thereafter used to determine mixing time under different operating (impeller speed) and geometrical (impeller design, vessel diameter, and off‐bottom clearance) conditions. Though the results presented are specific to unbaffled stirred tank, the method reported is general and can be used in any kind of stirred tank. |
| doi_str_mv | 10.1002/aic.17966 |
| format | Article |
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In this work, we report a novel, non‐invasive technique to estimate mixing time in an unbaffled stirred tank using a contact type ultrasonic sensor. Variation in speed of sound in stirred tank is measured by ultrasound and is used to determine the mixing time of solutions. A sensing time of 16.6 ms (~60 Hz) is achieved which leads to an estimation of the mixing process dynamics under forced vortex conditions. The method is validated against colorimetric technique using a dye. The technique is thereafter used to determine mixing time under different operating (impeller speed) and geometrical (impeller design, vessel diameter, and off‐bottom clearance) conditions. 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In this work, we report a novel, non‐invasive technique to estimate mixing time in an unbaffled stirred tank using a contact type ultrasonic sensor. Variation in speed of sound in stirred tank is measured by ultrasound and is used to determine the mixing time of solutions. A sensing time of 16.6 ms (~60 Hz) is achieved which leads to an estimation of the mixing process dynamics under forced vortex conditions. The method is validated against colorimetric technique using a dye. The technique is thereafter used to determine mixing time under different operating (impeller speed) and geometrical (impeller design, vessel diameter, and off‐bottom clearance) conditions. Though the results presented are specific to unbaffled stirred tank, the method reported is general and can be used in any kind of stirred tank.</description><subject>Colorimetry</subject><subject>Diameters</subject><subject>Impellers</subject><subject>mixing time</subject><subject>non‐invasive</subject><subject>pitch blade turbine</subject><subject>ultrasound</subject><subject>unbaffled stirred tank</subject><issn>0001-1541</issn><issn>1547-5905</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp1kM1OAyEUhYnRxFpd-AYkrlxMC3dgmHHXNP40aXSjcUkoBaVOmRGm1e58BJ_RJxEdtyY3ObmHj3vhIHRKyYgSAmPl9IiKqij20IByJjJeEb6PBoQQmiWDHqKjGFepA1HCAD3eNv7r49P5rYpua_DavTv_hDu3NtjEJKpzjcfO441fKGtrs8TJDiFpp_zLBZ6ko7oLKjbeaazaNjRKPx-jA6vqaE7-dIgeri7vpzfZ_O56Np3MMw0giozqnPCSQ7kUICgDQrQFzqm2pdVLBpyyQi1yxg3TBTGiAshTcUFFwcQC8iE66-emta-b9GK5ajbBp5UShOBllUNeJuq8p3RoYgzGyjakr4WdpET-5CZTbvI3t8SOe_bN1Wb3Pygns2l_4xsuWm5V</recordid><startdate>202303</startdate><enddate>202303</enddate><creator>Mukherjee, Debmalya</creator><creator>Sen, Nirvik</creator><creator>Singh, Krishna Kumar</creator><creator>Saha, Shilpi</creator><creator>Mayya, Anuradha</creator><creator>Shenoy, Kalsanka Trivikram</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/0000-0002-5155-0462</orcidid><orcidid>https://orcid.org/0000-0002-7277-3956</orcidid></search><sort><creationdate>202303</creationdate><title>Non‐invasive mixing time estimation in unbaffled stirred tank: An ultrasonic approach</title><author>Mukherjee, Debmalya ; Sen, Nirvik ; Singh, Krishna Kumar ; Saha, Shilpi ; Mayya, Anuradha ; Shenoy, Kalsanka Trivikram</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2276-1c3058528d72714200cf2551cf8fcd425146ab345e4c60e792232235717647b23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Colorimetry</topic><topic>Diameters</topic><topic>Impellers</topic><topic>mixing time</topic><topic>non‐invasive</topic><topic>pitch blade turbine</topic><topic>ultrasound</topic><topic>unbaffled stirred tank</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mukherjee, Debmalya</creatorcontrib><creatorcontrib>Sen, Nirvik</creatorcontrib><creatorcontrib>Singh, Krishna Kumar</creatorcontrib><creatorcontrib>Saha, Shilpi</creatorcontrib><creatorcontrib>Mayya, Anuradha</creatorcontrib><creatorcontrib>Shenoy, Kalsanka Trivikram</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>Mukherjee, Debmalya</au><au>Sen, Nirvik</au><au>Singh, Krishna Kumar</au><au>Saha, Shilpi</au><au>Mayya, Anuradha</au><au>Shenoy, Kalsanka Trivikram</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Non‐invasive mixing time estimation in unbaffled stirred tank: An ultrasonic approach</atitle><jtitle>AIChE journal</jtitle><date>2023-03</date><risdate>2023</risdate><volume>69</volume><issue>3</issue><epage>n/a</epage><issn>0001-1541</issn><eissn>1547-5905</eissn><abstract>Estimation of mixing time is an essential aspect in characterization of stirred tanks. In this work, we report a novel, non‐invasive technique to estimate mixing time in an unbaffled stirred tank using a contact type ultrasonic sensor. Variation in speed of sound in stirred tank is measured by ultrasound and is used to determine the mixing time of solutions. A sensing time of 16.6 ms (~60 Hz) is achieved which leads to an estimation of the mixing process dynamics under forced vortex conditions. The method is validated against colorimetric technique using a dye. The technique is thereafter used to determine mixing time under different operating (impeller speed) and geometrical (impeller design, vessel diameter, and off‐bottom clearance) conditions. 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| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Colorimetry Diameters Impellers mixing time non‐invasive pitch blade turbine ultrasound unbaffled stirred tank |
| title | Non‐invasive mixing time estimation in unbaffled stirred tank: An ultrasonic approach |
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