An Ultrathin Nanoporous Membrane Evaporator
Evaporation is a ubiquitous phenomenon found in nature and widely used in industry. Yet a fundamental understanding of interfacial transport during evaporation remains limited to date owing to the difficulty of characterizing the heat and mass transfer at the interface, especially at high heat fluxe...
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| Format: | Article |
| Language: | en_US |
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American Chemical Society (ACS)
2018
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| Online Access: | http://hdl.handle.net/1721.1/117480 https://orcid.org/0000-0002-5938-717X https://orcid.org/0000-0003-3808-314X https://orcid.org/0000-0002-0096-0285 https://orcid.org/0000-0001-7045-1200 |
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| author | Kinefuchi, Ikuya Lu, Zhengmao Wilke, Kyle L. Preston, Daniel John Chang-Davidson, Elizabeth F. Wang, Evelyn |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Kinefuchi, Ikuya Lu, Zhengmao Wilke, Kyle L. Preston, Daniel John Chang-Davidson, Elizabeth F. Wang, Evelyn |
| author_sort | Kinefuchi, Ikuya |
| collection | MIT |
| description | Evaporation is a ubiquitous phenomenon found in nature and widely used in industry. Yet a fundamental understanding of interfacial transport during evaporation remains limited to date owing to the difficulty of characterizing the heat and mass transfer at the interface, especially at high heat fluxes (>100 W/cm²). In this work, we elucidated evaporation into an air ambient with an ultrathin (≈200 nm thick) nanoporous (≈130 nm pore diameter) membrane. With our evaporator design, we accurately monitored the temperature of the liquid–vapor interface, reduced the thermal–fluidic transport resistance, and mitigated the clogging risk associated with contamination. At a steady state, we demonstrated heat fluxes of ≈500 W/cm² across the interface over a total evaporation area of 0.20 mm². In the high flux regime, we showed the importance of convective transport caused by evaporation itself and that Fick’s first law of diffusion no longer applies. This work improves our fundamental understanding of evaporation and paves the way for high flux phase-change devices. Keywords: evaporation; high flux; Maxwell−Stefan equation; nanoporous; Ultrathin |
| first_indexed | 2024-09-23T16:59:37Z |
| format | Article |
| id | mit-1721.1/117480 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:59:37Z |
| publishDate | 2018 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/1174802022-10-03T09:38:54Z An Ultrathin Nanoporous Membrane Evaporator Kinefuchi, Ikuya Lu, Zhengmao Wilke, Kyle L. Preston, Daniel John Chang-Davidson, Elizabeth F. Wang, Evelyn Massachusetts Institute of Technology. Department of Mechanical Engineering Wang, Evelyn, N Lu, Zhengmao Wilke, Kyle L. Preston, Daniel John Chang-Davidson, Elizabeth F. Wang, Evelyn Evaporation is a ubiquitous phenomenon found in nature and widely used in industry. Yet a fundamental understanding of interfacial transport during evaporation remains limited to date owing to the difficulty of characterizing the heat and mass transfer at the interface, especially at high heat fluxes (>100 W/cm²). In this work, we elucidated evaporation into an air ambient with an ultrathin (≈200 nm thick) nanoporous (≈130 nm pore diameter) membrane. With our evaporator design, we accurately monitored the temperature of the liquid–vapor interface, reduced the thermal–fluidic transport resistance, and mitigated the clogging risk associated with contamination. At a steady state, we demonstrated heat fluxes of ≈500 W/cm² across the interface over a total evaporation area of 0.20 mm². In the high flux regime, we showed the importance of convective transport caused by evaporation itself and that Fick’s first law of diffusion no longer applies. This work improves our fundamental understanding of evaporation and paves the way for high flux phase-change devices. Keywords: evaporation; high flux; Maxwell−Stefan equation; nanoporous; Ultrathin 2018-08-22T18:14:54Z 2018-08-22T18:14:54Z 2017-10 2017-07 Article http://purl.org/eprint/type/JournalArticle 1530-6984 1530-6992 http://hdl.handle.net/1721.1/117480 Lu, Zhengmao et al. “An Ultrathin Nanoporous Membrane Evaporator.” Nano Letters 17, 10 (September 2017): 6217–6220 © 2017 American Chemical Society https://orcid.org/0000-0002-5938-717X https://orcid.org/0000-0003-3808-314X https://orcid.org/0000-0002-0096-0285 https://orcid.org/0000-0001-7045-1200 en_US http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.7b02889 Nano Letters 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 Chemical Society (ACS) Evelyn Wang |
| spellingShingle | Kinefuchi, Ikuya Lu, Zhengmao Wilke, Kyle L. Preston, Daniel John Chang-Davidson, Elizabeth F. Wang, Evelyn An Ultrathin Nanoporous Membrane Evaporator |
| title | An Ultrathin Nanoporous Membrane Evaporator |
| title_full | An Ultrathin Nanoporous Membrane Evaporator |
| title_fullStr | An Ultrathin Nanoporous Membrane Evaporator |
| title_full_unstemmed | An Ultrathin Nanoporous Membrane Evaporator |
| title_short | An Ultrathin Nanoporous Membrane Evaporator |
| title_sort | ultrathin nanoporous membrane evaporator |
| url | http://hdl.handle.net/1721.1/117480 https://orcid.org/0000-0002-5938-717X https://orcid.org/0000-0003-3808-314X https://orcid.org/0000-0002-0096-0285 https://orcid.org/0000-0001-7045-1200 |
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