Understanding Enhanced Boiling With Triton X Surfactants
Heat transfer performance in pool boiling is largely dictated by bubble growth, departure, and number of nucleation sites. It is a well known phenomenon that adding surfactants can lower the liquid-vapor surface tension and increase the bubble departure frequency, thereby enhancing heat transfer. In...
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| Format: | Article |
| Language: | en_US |
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American Society of Mechanical Engineers
2017
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| Online Access: | http://hdl.handle.net/1721.1/108535 https://orcid.org/0000-0002-8272-690X https://orcid.org/0000-0002-5764-9383 https://orcid.org/0000-0002-7836-415X https://orcid.org/0000-0001-7045-1200 |
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| author | Cho, Han-Jae Jeremy Sresht, Vishnu Blankschtein, Edmundo D Wang, Evelyn |
| author2 | Massachusetts Institute of Technology. Department of Chemical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Chemical Engineering Cho, Han-Jae Jeremy Sresht, Vishnu Blankschtein, Edmundo D Wang, Evelyn |
| author_sort | Cho, Han-Jae Jeremy |
| collection | MIT |
| description | Heat transfer performance in pool boiling is largely dictated by bubble growth, departure, and number of nucleation sites. It is a well known phenomenon that adding surfactants can lower the liquid-vapor surface tension and increase the bubble departure frequency, thereby enhancing heat transfer. In addition to faster departure rates, surfactants are observed to dramatically increase the number of nucleation sites, which cannot be explained by simple surface tension arguments. Furthermore, it is not well understood which surfactant properties such as chemical composition and molecular structure affect boiling most significantly. From our experiments using Triton X-100 and Triton X-114 nonionic surfactants, we attribute boiling enhancement mainly to adsorption to the solid-liquid interface. Using the Mikic-Rohsenow model for boiling, a simple linear adsorption model, and the Cassie-Baxter description for contact angle, we developed a model that shows agreement with experimental results. This work offers some insights on how to predict boiling enhancement based on surfactant chemistry alone, which may aid in choosing optimal surfactants for boiling in the future. |
| first_indexed | 2024-09-23T14:00:15Z |
| format | Article |
| id | mit-1721.1/108535 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:00:15Z |
| publishDate | 2017 |
| publisher | American Society of Mechanical Engineers |
| record_format | dspace |
| spelling | mit-1721.1/1085352022-09-28T17:39:04Z Understanding Enhanced Boiling With Triton X Surfactants Cho, Han-Jae Jeremy Sresht, Vishnu Blankschtein, Edmundo D Wang, Evelyn Massachusetts Institute of Technology. Department of Chemical Engineering Massachusetts Institute of Technology. Department of Mechanical Engineering Cho, Han-Jae Jeremy Sresht, Vishnu Blankschtein, Edmundo D Wang, Evelyn Heat transfer performance in pool boiling is largely dictated by bubble growth, departure, and number of nucleation sites. It is a well known phenomenon that adding surfactants can lower the liquid-vapor surface tension and increase the bubble departure frequency, thereby enhancing heat transfer. In addition to faster departure rates, surfactants are observed to dramatically increase the number of nucleation sites, which cannot be explained by simple surface tension arguments. Furthermore, it is not well understood which surfactant properties such as chemical composition and molecular structure affect boiling most significantly. From our experiments using Triton X-100 and Triton X-114 nonionic surfactants, we attribute boiling enhancement mainly to adsorption to the solid-liquid interface. Using the Mikic-Rohsenow model for boiling, a simple linear adsorption model, and the Cassie-Baxter description for contact angle, we developed a model that shows agreement with experimental results. This work offers some insights on how to predict boiling enhancement based on surfactant chemistry alone, which may aid in choosing optimal surfactants for boiling in the future. National Science Foundation (U.S.). Materials Research Science and Engineering Centers (Program) (DMR - 0819762) 2017-05-01T17:10:24Z 2017-05-01T17:10:24Z 2013-07 Article http://purl.org/eprint/type/ConferencePaper 978-0-7918-5548-5 http://hdl.handle.net/1721.1/108535 Cho, H. Jeremy, Vishnu Sresht, Daniel Blankschtein, and Evelyn N. Wang. “Understanding Enhanced Boiling With Triton X Surfactants.” Volume 2: Heat Transfer Enhancement for Practical Applications; Heat and Mass Transfer in Fire and Combustion; Heat Transfer in Multiphase Systems; Heat and Mass Transfer in Biotechnology (July 14, 2013). https://orcid.org/0000-0002-8272-690X https://orcid.org/0000-0002-5764-9383 https://orcid.org/0000-0002-7836-415X https://orcid.org/0000-0001-7045-1200 en_US http://dx.doi.org/10.1115/HT2013-17497 Volume 2: Heat Transfer Enhancement for Practical Applications; Heat and Mass Transfer in Fire and Combustion; Heat Transfer in Multiphase Systems; Heat and Mass Transfer in Biotechnology Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Society of Mechanical Engineers American Society of Mechanical Engineers (ASME) |
| spellingShingle | Cho, Han-Jae Jeremy Sresht, Vishnu Blankschtein, Edmundo D Wang, Evelyn Understanding Enhanced Boiling With Triton X Surfactants |
| title | Understanding Enhanced Boiling With Triton X Surfactants |
| title_full | Understanding Enhanced Boiling With Triton X Surfactants |
| title_fullStr | Understanding Enhanced Boiling With Triton X Surfactants |
| title_full_unstemmed | Understanding Enhanced Boiling With Triton X Surfactants |
| title_short | Understanding Enhanced Boiling With Triton X Surfactants |
| title_sort | understanding enhanced boiling with triton x surfactants |
| url | http://hdl.handle.net/1721.1/108535 https://orcid.org/0000-0002-8272-690X https://orcid.org/0000-0002-5764-9383 https://orcid.org/0000-0002-7836-415X https://orcid.org/0000-0001-7045-1200 |
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