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A multistage elastocaloric refrigerator and heat pump with 28 K temperature span
Elastocaloric refrigerators are a promising alternative to the vapor compression cycle because they do not require refrigerants with high global warming potential. However, these coolers have yet to achieve temperatures low enough to — for example — be used as standard household refrigerators. We bu...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6897911/ https://www.ncbi.nlm.nih.gov/pubmed/31811187 http://dx.doi.org/10.1038/s41598-019-54411-8 |
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author | Snodgrass, Ryan Erickson, David |
author_facet | Snodgrass, Ryan Erickson, David |
author_sort | Snodgrass, Ryan |
collection | PubMed |
description | Elastocaloric refrigerators are a promising alternative to the vapor compression cycle because they do not require refrigerants with high global warming potential. However, these coolers have yet to achieve temperatures low enough to — for example — be used as standard household refrigerators. We built one-stage, two-stage, and three-stage elastocaloric cooling systems to determine if staging of the elastocaloric effect could significantly expand temperature span. Our three-stage system achieved 1.5 times the maximum temperature span of our single-stage system, and produced the highest temperature span of any elastocaloric device to-date at 28.3 °C, where previously the record was 19.9 °C. Interestingly, we found that multistage systems can achieve equivalent temperature spans but at higher coefficients of performance compared to similarly-constructed single-stage systems. |
format | Online Article Text |
id | pubmed-6897911 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-68979112019-12-12 A multistage elastocaloric refrigerator and heat pump with 28 K temperature span Snodgrass, Ryan Erickson, David Sci Rep Article Elastocaloric refrigerators are a promising alternative to the vapor compression cycle because they do not require refrigerants with high global warming potential. However, these coolers have yet to achieve temperatures low enough to — for example — be used as standard household refrigerators. We built one-stage, two-stage, and three-stage elastocaloric cooling systems to determine if staging of the elastocaloric effect could significantly expand temperature span. Our three-stage system achieved 1.5 times the maximum temperature span of our single-stage system, and produced the highest temperature span of any elastocaloric device to-date at 28.3 °C, where previously the record was 19.9 °C. Interestingly, we found that multistage systems can achieve equivalent temperature spans but at higher coefficients of performance compared to similarly-constructed single-stage systems. Nature Publishing Group UK 2019-12-06 /pmc/articles/PMC6897911/ /pubmed/31811187 http://dx.doi.org/10.1038/s41598-019-54411-8 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Snodgrass, Ryan Erickson, David A multistage elastocaloric refrigerator and heat pump with 28 K temperature span |
title | A multistage elastocaloric refrigerator and heat pump with 28 K temperature span |
title_full | A multistage elastocaloric refrigerator and heat pump with 28 K temperature span |
title_fullStr | A multistage elastocaloric refrigerator and heat pump with 28 K temperature span |
title_full_unstemmed | A multistage elastocaloric refrigerator and heat pump with 28 K temperature span |
title_short | A multistage elastocaloric refrigerator and heat pump with 28 K temperature span |
title_sort | multistage elastocaloric refrigerator and heat pump with 28 k temperature span |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6897911/ https://www.ncbi.nlm.nih.gov/pubmed/31811187 http://dx.doi.org/10.1038/s41598-019-54411-8 |
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