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dc.contributor.authorMarc, Salleras
dc.contributor.authorLuis, Fonseca
dc.contributor.authorInci, Donmez-Noyan
dc.contributor.authorMarc, Dolcet
dc.contributor.authorJoaquin, Santander
dc.contributor.authorDenise, Estrada-Wiese
dc.contributor.authorJose-Manuel, Sojo
dc.contributor.authorGerard, Gadea
dc.contributor.authorAlex, Morata
dc.contributor.authorAlbert, Tarancon
dc.date.accessioned2021-06-02T10:13:52Z
dc.date.available2021-06-02T10:13:52Z
dc.date.issued2021
dc.identifierONIX_20210602_10.5772/intechopen.96246_506
dc.identifier.urihttps://library.oapen.org/handle/20.500.12657/49392
dc.description.abstractThis chapter deals with heat transfer challenges in the microdomain. It focuses on practical issues regarding this matter when attempting the fabrication of small footprint thermoelectric generators (μTEGs). Thermoelectric devices are designed to bridge a heat source (e.g. hot surface) and a heat sink (e.g. ambient) assuring that a significant fraction of the available temperature difference is captured across the active thermoelectric materials. Coexistence of those contrasted temperatures in small devices is challenging. It requires careful decisions about the geometry and the intrinsic thermal properties of the materials involved. The geometrical challenges lead to micromachined architectures, which silicon technologies provide in a controlled way, but leading to fragile structures, too. In addition, extracting heat from small systems is problematic because of the high thermal resistance associated to heat exchanged by natural convection between the surrounding air and small bare surfaces. Forced convection or the application of a cold finger clearly shows the usefulness of assembling a heat exchanger in a way that is effective and compliant with the mechanical constraints of micromachined devices. Simulations and characterization of fabricated structures illustrate the effectiveness of this element integration and its impact on the trade-off between electrical and thermal behavior of the active materials in device performance.
dc.languageEnglish
dc.subject.classificationbic Book Industry Communication::T Technology, engineering, agriculture::TB Technology: general issues::TBC Engineering: general
dc.subject.otherthermoelectricity, silicon technology, micromachining, silicon nanowires, heat exchangers
dc.titleChapter Managing Heat Transfer Issues in Thermoelectric Microgenerators
dc.typechapter
oapen.identifier.doi10.5772/intechopen.96246
oapen.relation.isPublishedBy09f6769d-48ed-467d-b150-4cf2680656a1
oapen.relation.isFundedByFP7-NMP-2013-SMALL-7
oapen.grant.number604169
oapen.grant.acronymSINERGY


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