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Low temperature difference thermoacoustic prime mover with asymmetric multi-stage loop configuration

Environmentally friendly and low-cost technologies to recover low-grade heat source into usable energy can contribute to ease the energy shortage. Thermoacoustic technology is expected as one promising approach in this ascendant field. In this work, the multi-stage looped thermoacoustic prime movers...

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Detalles Bibliográficos
Autores principales: Jin, T., Yang, R., Wang, Y., Feng, Y., Tang, K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5550454/
https://www.ncbi.nlm.nih.gov/pubmed/28794455
http://dx.doi.org/10.1038/s41598-017-08124-5
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author Jin, T.
Yang, R.
Wang, Y.
Feng, Y.
Tang, K.
author_facet Jin, T.
Yang, R.
Wang, Y.
Feng, Y.
Tang, K.
author_sort Jin, T.
collection PubMed
description Environmentally friendly and low-cost technologies to recover low-grade heat source into usable energy can contribute to ease the energy shortage. Thermoacoustic technology is expected as one promising approach in this ascendant field. In this work, the multi-stage looped thermoacoustic prime movers with asymmetric configuration, which can provide travelling-wave resonator and appropriate acoustic field for efficient regenerator, have been proposed and experimentally studied. The presented looped thermoacoustic prime movers can start to oscillate with quite low temperature difference along the regenerator. The lowest onset temperature difference obtained in the experiments is only 17 °C (the corresponding heating temperature is 29 °C), which can be achieved in both three-stage and four-stage looped thermoacoustic prime movers, with CO(2) of 1 MPa or 1.5 MPa as the working fluid. An electric generator driven by a three-stage looped thermoacoustic prime mover with low heating temperature was tested to achieve the acoustic to electric conversion.
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spelling pubmed-55504542017-08-11 Low temperature difference thermoacoustic prime mover with asymmetric multi-stage loop configuration Jin, T. Yang, R. Wang, Y. Feng, Y. Tang, K. Sci Rep Article Environmentally friendly and low-cost technologies to recover low-grade heat source into usable energy can contribute to ease the energy shortage. Thermoacoustic technology is expected as one promising approach in this ascendant field. In this work, the multi-stage looped thermoacoustic prime movers with asymmetric configuration, which can provide travelling-wave resonator and appropriate acoustic field for efficient regenerator, have been proposed and experimentally studied. The presented looped thermoacoustic prime movers can start to oscillate with quite low temperature difference along the regenerator. The lowest onset temperature difference obtained in the experiments is only 17 °C (the corresponding heating temperature is 29 °C), which can be achieved in both three-stage and four-stage looped thermoacoustic prime movers, with CO(2) of 1 MPa or 1.5 MPa as the working fluid. An electric generator driven by a three-stage looped thermoacoustic prime mover with low heating temperature was tested to achieve the acoustic to electric conversion. Nature Publishing Group UK 2017-08-09 /pmc/articles/PMC5550454/ /pubmed/28794455 http://dx.doi.org/10.1038/s41598-017-08124-5 Text en © The Author(s) 2017 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
Jin, T.
Yang, R.
Wang, Y.
Feng, Y.
Tang, K.
Low temperature difference thermoacoustic prime mover with asymmetric multi-stage loop configuration
title Low temperature difference thermoacoustic prime mover with asymmetric multi-stage loop configuration
title_full Low temperature difference thermoacoustic prime mover with asymmetric multi-stage loop configuration
title_fullStr Low temperature difference thermoacoustic prime mover with asymmetric multi-stage loop configuration
title_full_unstemmed Low temperature difference thermoacoustic prime mover with asymmetric multi-stage loop configuration
title_short Low temperature difference thermoacoustic prime mover with asymmetric multi-stage loop configuration
title_sort low temperature difference thermoacoustic prime mover with asymmetric multi-stage loop configuration
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5550454/
https://www.ncbi.nlm.nih.gov/pubmed/28794455
http://dx.doi.org/10.1038/s41598-017-08124-5
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