English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We revisit the optimal performance of a thermoelectric generator within theendoreversible approximation, while imposing a finite physical dimensionsconstraint (FPDC) in the form of a fixed total area of the heat exchangers. Ouranalysis is based on the linear-irreversible law for heat transfer between thereservoir and the working medium, in contrast to Newton's law usually assumedin literature. The optimization of power output is performed with respect tothe thermoelectric current as well as the fractional area of the heatexchangers. We describe two alternate designs for allocating optimal areas tothe heat exchangers. Interestingly, for each design, the use oflinear-irreversible law yields the efficiency at maximum power in thewell-known form, $2\eta_{\rm C}^{}/ (4-\eta_{\rm C}^{})$, earlier obtained forthe case of thermoelectric generator under exoreversible approximation, i.e.assuming only the internal irreversibility due to Joule heating. On the otherhand, the use of Newton's law yields Curzon-Ahlborn efficiency.

Thermoelectric generator in endoreversible approximation: the effect of heat-transfer law under finite physical dimensions constraint