Performance evaluation of thermoelectric generators under cyclic heating
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2021Author:
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N P Williams and L Roumen and G McCauley and S M O'Shaughnessy, Performance evaluation of thermoelectric generators under cyclic heating, Journal of Physics: Conference Series, 2116, 1, 2021, 012087Download Item:
Abstract:
The effect of thermal cycling on thermoelectric generator (TEG) performance is investigated for six nominally identical samples subjected to the same heating cycle profile. All TEGs experienced performance degradation, with maximum power outputs between 28 % and 49 % of pre-cycling values and a post-cycling decrease in the dimensionless figure of merit ZT of 21 % to 49 %. Sudden significant power reductions and subsequent internal resistance increases were observed for all samples, indicative of internal damage to the structure of the TEGs arising from material interface separation and micro-crack formation.
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Author: O'Shaughnessy, Seamus
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Journal of Physics: Conference Series;2116;
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Thermal cycling, Thermoelectric generatorDOI:
http://dx.doi.org/10.1088/1742-6596/2116/1/012087Metadata
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