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Article: Solid-state thermal diode with shape memory alloys

TitleSolid-state thermal diode with shape memory alloys
Authors
KeywordsShape memory alloy
Thermal conductivity
Thermal diode
Experimental analysis
Thermal rectification
Issue Date2016
Citation
International Journal of Heat and Mass Transfer, 2016, v. 93, p. 605-611 How to Cite?
Abstract© 2015 Elsevier Ltd. All rights reserved. Analogous to the electronic diode, a thermal diode transports heat mainly in one preferential direction rather than in the opposite direction. Phase change thermal diodes usually rectify heat transport much more effectively than solid state thermal diodes due to the latent heat phase change effect. However, they are limited by either the gravitational orientation or one dimensional configuration. On the other hand, solid state thermal diodes come in many shapes and sizes, durable, relatively easy to construct, and are simple to operate, but their diodicity (rectification coefficient) is always in the order of η ∼ 1 or lower. Thus, it is difficult to find any potential applications. In order to be practically useful for most engineering systems, a thermal diode should exhibit a diodicity in the order of η ∼ 10 or greater. In this study, a passive solid state thermal diode with shape memory alloy is built and investigated experimentally. The diodicity is recorded at about 90. This promising result could have important applications in the development of future thermal circuits or for thermal management.
Persistent Identifierhttp://hdl.handle.net/10722/255974
ISSN
2015 Impact Factor: 2.857
2015 SCImago Journal Rankings: 1.749

 

DC FieldValueLanguage
dc.contributor.authorTso, C. Y.-
dc.contributor.authorChao, Christopher Y H-
dc.date.accessioned2018-07-16T06:14:14Z-
dc.date.available2018-07-16T06:14:14Z-
dc.date.issued2016-
dc.identifier.citationInternational Journal of Heat and Mass Transfer, 2016, v. 93, p. 605-611-
dc.identifier.issn0017-9310-
dc.identifier.urihttp://hdl.handle.net/10722/255974-
dc.description.abstract© 2015 Elsevier Ltd. All rights reserved. Analogous to the electronic diode, a thermal diode transports heat mainly in one preferential direction rather than in the opposite direction. Phase change thermal diodes usually rectify heat transport much more effectively than solid state thermal diodes due to the latent heat phase change effect. However, they are limited by either the gravitational orientation or one dimensional configuration. On the other hand, solid state thermal diodes come in many shapes and sizes, durable, relatively easy to construct, and are simple to operate, but their diodicity (rectification coefficient) is always in the order of η ∼ 1 or lower. Thus, it is difficult to find any potential applications. In order to be practically useful for most engineering systems, a thermal diode should exhibit a diodicity in the order of η ∼ 10 or greater. In this study, a passive solid state thermal diode with shape memory alloy is built and investigated experimentally. The diodicity is recorded at about 90. This promising result could have important applications in the development of future thermal circuits or for thermal management.-
dc.languageeng-
dc.relation.ispartofInternational Journal of Heat and Mass Transfer-
dc.subjectShape memory alloy-
dc.subjectThermal conductivity-
dc.subjectThermal diode-
dc.subjectExperimental analysis-
dc.subjectThermal rectification-
dc.titleSolid-state thermal diode with shape memory alloys-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.ijheatmasstransfer.2015.10.045-
dc.identifier.scopuseid_2-s2.0-84946595404-
dc.identifier.volume93-
dc.identifier.spage605-
dc.identifier.epage611-

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