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Type: 
Journal
Description: 
The optimized design of a flexible micro thermoelectric generator (TEG) suitable for self-powered wearable devices and its real temperature gradient performance is proposed and discussed in this paper. Finite element analysis was performed on a three-dimensional p-n thermocouple on wavy-shaped poly-dimethylsiloxane (PDMS)/Kapton assembly using COMSOL Multiphysics software. Electrical and thermal simulations were carried out to determine the geometric effects of the single thermocouple (length and width of the thermoelements, deposition procedure of junction between p- and n-type legs) on output power and efficiency performance of the TEG. The experimental results confirmed that the experimentally measured thermal gradient ranges between 0.20 and 0.64 K higher than the simulated value and such a result has great importance for correct generator design and determination of effective thermal …
Publisher: 
Pergamon
Publication date: 
15 Jun 2015
Biblio References: 
Volume: 86 Pages: 300-310
Origin: 
Energy