Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 143, Issue 2, Pages 1611-1621Publisher
SPRINGER
DOI: 10.1007/s10973-020-09983-3
Keywords
TEG; Hybrid nanofluid; Coupled simulations; CNT-water nanofluid
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This study investigated the performance enhancement of thermoelectric generator modules with different nanofluids, observing that the power output increases with the inclusion of nanoparticles and that hybrid nanofluids produce the highest output power. The efficiencies of the module rise with Reynolds number and solid particle volume fraction, while the values are low.
The aim of this study is to investigate the performance enhancement of thermoelectric generator module with different nanofluids. CNT-water nanofluid and Ag/MgO-water hybrid nanofluids are used in a 3D channel where thermoelectric generator modules are mounted. 3D coupled multi-physics simulations are performed by using Galerkin weighted residual finite element method. It was observed that the power output of the module enhances with the inclusion of nanoparticles. Configuration with hybrid nanofluid produces the highest output power. At Reynolds number of 500, increasing the solid volume faction from 0.005 to 0.2, the output power of the thermoelectric generator rises by about 5.84% and 9.30% for CNT-water and hybrid nanofluid. However, at Reynolds number of 1500, using CNT-water nanofluid becomes effective and the amount of increment will be 6.6%. The efficiencies of the module rise with Reynolds number and solid particle volume fraction, while the values are low.
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