An electrocaloric device demonstrator for solid-state cooling
A prototype device was designed to demonstrate electrocaloric cooling of Pb(Mg1/3Nb2/3)O3-PbTiO3 70/30 single crystals as active cooling elements. The test section was devised to investigate potential bulk cooling effects of the single-crystal materials under repeated electric-field cycles. Despite...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/98196 http://hdl.handle.net/10220/17442 |
| _version_ | 1811682267468136448 |
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| author | Chukka, Rami Vandrangi, Suresh Shannigrahi, Santirajan Chen, Lang |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Chukka, Rami Vandrangi, Suresh Shannigrahi, Santirajan Chen, Lang |
| author_sort | Chukka, Rami |
| collection | NTU |
| description | A prototype device was designed to demonstrate electrocaloric cooling of Pb(Mg1/3Nb2/3)O3-PbTiO3 70/30 single crystals as active cooling elements. The test section was devised to investigate potential bulk cooling effects of the single-crystal materials under repeated electric-field cycles. Despite the low electrocaloric temperature changes measured by indirect method (Delta Tmax = 2.7K in 240 V), the test materials showed significant cooling rates under optimized device parameters compared to those of natural cooling conditions. It was emphasized that the pulse duration and frequency of the applied electric field play an important role in achieving high cooling rates in electrocaloric cooling devices besides high electrocaloric effects of test materials. |
| first_indexed | 2024-10-01T03:54:07Z |
| format | Journal Article |
| id | ntu-10356/98196 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:54:07Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/981962020-06-01T10:01:55Z An electrocaloric device demonstrator for solid-state cooling Chukka, Rami Vandrangi, Suresh Shannigrahi, Santirajan Chen, Lang School of Materials Science & Engineering DRNTU::Engineering::Materials A prototype device was designed to demonstrate electrocaloric cooling of Pb(Mg1/3Nb2/3)O3-PbTiO3 70/30 single crystals as active cooling elements. The test section was devised to investigate potential bulk cooling effects of the single-crystal materials under repeated electric-field cycles. Despite the low electrocaloric temperature changes measured by indirect method (Delta Tmax = 2.7K in 240 V), the test materials showed significant cooling rates under optimized device parameters compared to those of natural cooling conditions. It was emphasized that the pulse duration and frequency of the applied electric field play an important role in achieving high cooling rates in electrocaloric cooling devices besides high electrocaloric effects of test materials. 2013-11-08T04:13:49Z 2019-12-06T19:51:59Z 2013-11-08T04:13:49Z 2019-12-06T19:51:59Z 2013 2013 Journal Article Chukka, R., Vandrangi, S., Shannigrahi, S., & Chen, L. (2013). An electrocaloric device demonstrator for solid-state cooling. EPL (europhysics letters), 103(4), 47011-. https://hdl.handle.net/10356/98196 http://hdl.handle.net/10220/17442 10.1209/0295-5075/103/47011 en EPL (europhysics letters) |
| spellingShingle | DRNTU::Engineering::Materials Chukka, Rami Vandrangi, Suresh Shannigrahi, Santirajan Chen, Lang An electrocaloric device demonstrator for solid-state cooling |
| title | An electrocaloric device demonstrator for solid-state cooling |
| title_full | An electrocaloric device demonstrator for solid-state cooling |
| title_fullStr | An electrocaloric device demonstrator for solid-state cooling |
| title_full_unstemmed | An electrocaloric device demonstrator for solid-state cooling |
| title_short | An electrocaloric device demonstrator for solid-state cooling |
| title_sort | electrocaloric device demonstrator for solid state cooling |
| topic | DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/98196 http://hdl.handle.net/10220/17442 |
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