Enhanced condensation with active methods
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016.
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| Formato: | Thesis |
| Idioma: | eng |
| Publicado em: |
Massachusetts Institute of Technology
2017
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| Acesso em linha: | http://hdl.handle.net/1721.1/107064 |
| _version_ | 1826210413374603264 |
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| author | Sarathy, Sudarshan |
| author2 | Kripa K. Varanasi. |
| author_facet | Kripa K. Varanasi. Sarathy, Sudarshan |
| author_sort | Sarathy, Sudarshan |
| collection | MIT |
| description | Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016. |
| first_indexed | 2024-09-23T14:49:06Z |
| format | Thesis |
| id | mit-1721.1/107064 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T14:49:06Z |
| publishDate | 2017 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/1070642019-04-10T18:41:54Z Enhanced condensation with active methods Sarathy, Sudarshan Kripa K. Varanasi. Massachusetts Institute of Technology. Department of Mechanical Engineering. Massachusetts Institute of Technology. Department of Mechanical Engineering. Mechanical Engineering. Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016. Cataloged from PDF version of thesis. Includes bibliographical references (pages 59-64). Condensation of low surface tension fluids is important in liquefied natural gas processing and refrigeration systems. Current state of the art low surface energy low hysteresis coatings are not able to achieve dropwise condensation below 10 mN/m. Surface acoustic waves are proposed as an active method to shed thin condensate films to reduce their thermal resistance and improve heat transfer coefficients. Interdigitated electrode patterns were fabricated on piezoelectric LiNbO3 wafers and SAW waves were generated with RF voltages in the 12.5 - 100 MHz regime. These were tested in the in-house condensation rig with Ethanol, Pentane, Hexane and Perfluorohexane. Heat transfer coefficients showed more than 2X improvement over standard filmwise condensation. Further, the effect of refrigerant side heat transfer enhancement in a condenser operating in a vapor compression refrigeration cycle is studied as a potential application. by Sudarshan Sarathy. S.M. 2017-02-22T19:01:54Z 2017-02-22T19:01:54Z 2016 2016 Thesis http://hdl.handle.net/1721.1/107064 971119051 eng MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission. http://dspace.mit.edu/handle/1721.1/7582 64 pages application/pdf Massachusetts Institute of Technology |
| spellingShingle | Mechanical Engineering. Sarathy, Sudarshan Enhanced condensation with active methods |
| title | Enhanced condensation with active methods |
| title_full | Enhanced condensation with active methods |
| title_fullStr | Enhanced condensation with active methods |
| title_full_unstemmed | Enhanced condensation with active methods |
| title_short | Enhanced condensation with active methods |
| title_sort | enhanced condensation with active methods |
| topic | Mechanical Engineering. |
| url | http://hdl.handle.net/1721.1/107064 |
| work_keys_str_mv | AT sarathysudarshan enhancedcondensationwithactivemethods |