Performance of a composite thermoelectric generator with different arrangements of SiGe, BiTe and PbTe under different configurations

Alexander Vargas-Almeida, Miguel Angel Olivares-Robles, Federico Méndez Lavielle

Research output: Contribution to journalArticleResearchpeer-review

2 Citations (Scopus)

Abstract

© 2015 by the authors. In this study, we analyze the role of the thermoelectric (TE) properties, namely Seebeck coefficient , thermal conductivity and electrical resistivity , of three different materials in a composite thermoelectric generator (CTEG) under different configurations. The CTEG is composed of three thermoelectric modules (TEMs): (1) two TEMs thermally and electrically connected in series (SC); (2) two branches of TEMs thermally and electrically connected in parallel (PSC); and (3) three TEMs thermally and electrically connected in parallel (TEP). In general, each of the TEMs have different thermoelectric parameters, namely a Seebeck coefficient α, a thermal conductance K and an electrical resistance R. Following the framework proposed recently, we show the effect of: (1) the configuration; and (2) the arrangements of TE materials on the corresponding equivalent figure of merit Zeqand consequently on the maximum power Pmaxand efficiency η of the CTEG. Firstly, we consider that the whole system is formed of the same thermoelectric material (α1, K1, R1= α2, K2, R2= α3, K3, R3) and, secondly, that the whole system is constituted by only two different thermoelectric materials (αi, Ki, Ri= αj, Kj, Rj≠ αl, Kl, Rl, where i; j; l can be 1, 2 or 3). In this work, we propose arrangements of TEMs, which clearly have the advantage of a higher thermoelectric figure of merit value compared to a conventional thermoelectric module. A corollary about the Zeq maxfor CTEG is obtained as a result of these considerations. We suggest an optimum configuration.
Original languageAmerican English
Pages (from-to)7384-7405
Number of pages22
JournalEntropy
DOIs
StatePublished - 1 Jan 2015

Fingerprint

thermoelectric generators
modules
composite materials
thermoelectric materials
configurations
Seebeck effect
figure of merit
electrical resistivity
power efficiency
electrical resistance
thermal conductivity

Cite this

@article{4b77979e81d24d0d8dbb9f881cfe91cc,
title = "Performance of a composite thermoelectric generator with different arrangements of SiGe, BiTe and PbTe under different configurations",
abstract = "{\circledC} 2015 by the authors. In this study, we analyze the role of the thermoelectric (TE) properties, namely Seebeck coefficient , thermal conductivity and electrical resistivity , of three different materials in a composite thermoelectric generator (CTEG) under different configurations. The CTEG is composed of three thermoelectric modules (TEMs): (1) two TEMs thermally and electrically connected in series (SC); (2) two branches of TEMs thermally and electrically connected in parallel (PSC); and (3) three TEMs thermally and electrically connected in parallel (TEP). In general, each of the TEMs have different thermoelectric parameters, namely a Seebeck coefficient α, a thermal conductance K and an electrical resistance R. Following the framework proposed recently, we show the effect of: (1) the configuration; and (2) the arrangements of TE materials on the corresponding equivalent figure of merit Zeqand consequently on the maximum power Pmaxand efficiency η of the CTEG. Firstly, we consider that the whole system is formed of the same thermoelectric material (α1, K1, R1= α2, K2, R2= α3, K3, R3) and, secondly, that the whole system is constituted by only two different thermoelectric materials (αi, Ki, Ri= αj, Kj, Rj≠ αl, Kl, Rl, where i; j; l can be 1, 2 or 3). In this work, we propose arrangements of TEMs, which clearly have the advantage of a higher thermoelectric figure of merit value compared to a conventional thermoelectric module. A corollary about the Zeq maxfor CTEG is obtained as a result of these considerations. We suggest an optimum configuration.",
author = "Alexander Vargas-Almeida and Olivares-Robles, {Miguel Angel} and Lavielle, {Federico M{\'e}ndez}",
year = "2015",
month = "1",
day = "1",
doi = "10.3390/e17117387",
language = "American English",
pages = "7384--7405",
journal = "Entropy",
issn = "1099-4300",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

}

Performance of a composite thermoelectric generator with different arrangements of SiGe, BiTe and PbTe under different configurations. / Vargas-Almeida, Alexander; Olivares-Robles, Miguel Angel; Lavielle, Federico Méndez.

In: Entropy, 01.01.2015, p. 7384-7405.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Performance of a composite thermoelectric generator with different arrangements of SiGe, BiTe and PbTe under different configurations

AU - Vargas-Almeida, Alexander

AU - Olivares-Robles, Miguel Angel

AU - Lavielle, Federico Méndez

PY - 2015/1/1

Y1 - 2015/1/1

N2 - © 2015 by the authors. In this study, we analyze the role of the thermoelectric (TE) properties, namely Seebeck coefficient , thermal conductivity and electrical resistivity , of three different materials in a composite thermoelectric generator (CTEG) under different configurations. The CTEG is composed of three thermoelectric modules (TEMs): (1) two TEMs thermally and electrically connected in series (SC); (2) two branches of TEMs thermally and electrically connected in parallel (PSC); and (3) three TEMs thermally and electrically connected in parallel (TEP). In general, each of the TEMs have different thermoelectric parameters, namely a Seebeck coefficient α, a thermal conductance K and an electrical resistance R. Following the framework proposed recently, we show the effect of: (1) the configuration; and (2) the arrangements of TE materials on the corresponding equivalent figure of merit Zeqand consequently on the maximum power Pmaxand efficiency η of the CTEG. Firstly, we consider that the whole system is formed of the same thermoelectric material (α1, K1, R1= α2, K2, R2= α3, K3, R3) and, secondly, that the whole system is constituted by only two different thermoelectric materials (αi, Ki, Ri= αj, Kj, Rj≠ αl, Kl, Rl, where i; j; l can be 1, 2 or 3). In this work, we propose arrangements of TEMs, which clearly have the advantage of a higher thermoelectric figure of merit value compared to a conventional thermoelectric module. A corollary about the Zeq maxfor CTEG is obtained as a result of these considerations. We suggest an optimum configuration.

AB - © 2015 by the authors. In this study, we analyze the role of the thermoelectric (TE) properties, namely Seebeck coefficient , thermal conductivity and electrical resistivity , of three different materials in a composite thermoelectric generator (CTEG) under different configurations. The CTEG is composed of three thermoelectric modules (TEMs): (1) two TEMs thermally and electrically connected in series (SC); (2) two branches of TEMs thermally and electrically connected in parallel (PSC); and (3) three TEMs thermally and electrically connected in parallel (TEP). In general, each of the TEMs have different thermoelectric parameters, namely a Seebeck coefficient α, a thermal conductance K and an electrical resistance R. Following the framework proposed recently, we show the effect of: (1) the configuration; and (2) the arrangements of TE materials on the corresponding equivalent figure of merit Zeqand consequently on the maximum power Pmaxand efficiency η of the CTEG. Firstly, we consider that the whole system is formed of the same thermoelectric material (α1, K1, R1= α2, K2, R2= α3, K3, R3) and, secondly, that the whole system is constituted by only two different thermoelectric materials (αi, Ki, Ri= αj, Kj, Rj≠ αl, Kl, Rl, where i; j; l can be 1, 2 or 3). In this work, we propose arrangements of TEMs, which clearly have the advantage of a higher thermoelectric figure of merit value compared to a conventional thermoelectric module. A corollary about the Zeq maxfor CTEG is obtained as a result of these considerations. We suggest an optimum configuration.

U2 - 10.3390/e17117387

DO - 10.3390/e17117387

M3 - Article

SP - 7384

EP - 7405

JO - Entropy

JF - Entropy

SN - 1099-4300

ER -